Rebase on charmhelpers for havana
This commit is contained in:
James Page
parent
2b0ec42777
commit
478087ada3
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@ -0,0 +1,11 @@
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#!/usr/bin/make
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lint:
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@flake8 --exclude hooks/charmhelpers hooks
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@charm proof
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sync:
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@charm-helper-sync -c charm-helpers.yaml
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test:
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@$(PYTHON) /usr/bin/nosetests --nologcapture --with-coverage unit_tests
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@ -0,0 +1,6 @@
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branch: lp:~openstack-charmers/charm-helpers/to_upstream
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destination: hooks/charmhelpers
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include:
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- core
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- fetch
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- contrib.openstack
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@ -1 +1 @@
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hooks.py
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ceilometer_hooks.py
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@ -0,0 +1,97 @@
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#!/usr/bin/python
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import sys
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import os
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import ceilometer_utils
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import socket.gethostname as get_host_name
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from charmhelpers.fetch import (
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apt_install, filter_installed_packages,
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apt_update
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)
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from charmhelpers.core.hookenv import (
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config,
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relation_ids,
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related_units,
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relation_get,
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Hooks, UnregisteredHookError,
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log
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)
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from charmhelpers.core.host import (
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service_restart
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)
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from charmhelpers.contrib.openstack.utils import configure_installation_source
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hooks = Hooks()
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@hooks.hook()
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def install():
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configure_installation_source(config('openstack-origin'))
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apt_update(fatal=True)
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apt_install(filter_installed_packages(ceilometer_utils.CEILOMETER_AGENT_PACKAGES),
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fatal=True)
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# TODO(jamespage): Locally scoped relation for nova and others
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#ceilometer_utils.modify_config_file(ceilometer_utils.NOVA_CONF,
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# ceilometer_utils.NOVA_SETTINGS)
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def get_conf():
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for relid in relation_ids('ceilometer-service'):
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for unit in related_units(relid):
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conf = {
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"rabbit_host": relation_get('rabbit_host', unit, relid),
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"rabbit_virtual_host": ceilometer_utils.RABBIT_VHOST,
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"rabbit_userid": ceilometer_utils.RABBIT_USER,
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"rabbit_password": relation_get('rabbit_password',
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unit, relid),
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"keystone_os_username": relation_get('keystone_os_username',
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unit, relid),
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"keystone_os_password": relation_get('keystone_os_password',
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unit, relid),
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"keystone_os_tenant": relation_get('keystone_os_tenant',
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unit, relid),
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"keystone_host": relation_get('keystone_host', unit, relid),
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"keystone_port": relation_get('keystone_port', unit, relid),
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"metering_secret": relation_get('metering_secret', unit, relid)
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}
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if None not in conf.itervalues():
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return conf
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return None
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def render_ceilometer_conf(context):
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if (context and os.path.exists(ceilometer_utils.CEILOMETER_CONF)):
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context['service_port'] = ceilometer_utils.CEILOMETER_PORT
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context['ceilometer_host'] = get_host_name()
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with open(ceilometer_utils.CEILOMETER_CONF, "w") as conf:
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conf.write(ceilometer_utils.render_template(
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os.path.basename(ceilometer_utils.CEILOMETER_CONF), context))
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for svc in ceilometer_utils.CEILOMETER_COMPUTE_SERVICES:
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service_restart(svc)
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return True
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return False
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@hooks.hook("ceilometer-service-relation-changed")
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def ceilometer_changed():
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# check if we have rabbit and keystone already set
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context = get_conf()
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if context:
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render_ceilometer_conf(context)
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else:
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# still waiting
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log("ceilometer: rabbit and keystone "
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"credentials not yet received from peer.")
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if __name__ == '__main__':
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try:
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hooks.execute(sys.argv)
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except UnregisteredHookError as e:
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log('Unknown hook {} - skipping.'.format(e))
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@ -1,28 +1,36 @@
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import os
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import uuid
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import ConfigParser
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from charmhelpers.fetch import apt_install as install
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RABBIT_USER = "ceilometer"
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RABBIT_VHOST = "ceilometer"
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CEILOMETER_CONF = "/etc/ceilometer/ceilometer.conf"
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SHARED_SECRET = "/etc/ceilometer/secret.txt"
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CEILOMETER_SERVICES = ['ceilometer-agent-central', 'ceilometer-collector',
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'ceilometer-api']
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CEILOMETER_SERVICES = [
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'ceilometer-agent-central', 'ceilometer-collector',
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'ceilometer-api'
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]
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CEILOMETER_DB = "ceilometer"
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CEILOMETER_SERVICE = "ceilometer"
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CEILOMETER_COMPUTE_SERVICES = ['ceilometer-agent-compute']
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CEILOMETER_PACKAGES = ['python-ceilometer', 'ceilometer-common',
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'ceilometer-agent-central', 'ceilometer-collector', 'ceilometer-api']
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CEILOMETER_AGENT_PACKAGES = ['python-ceilometer', 'ceilometer-common',
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'ceilometer-agent-compute']
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CEILOMETER_PACKAGES = [
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'python-ceilometer', 'ceilometer-common',
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'ceilometer-agent-central', 'ceilometer-collector', 'ceilometer-api'
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]
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CEILOMETER_AGENT_PACKAGES = [
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'python-ceilometer', 'ceilometer-common',
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'ceilometer-agent-compute'
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]
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CEILOMETER_PORT = 8777
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CEILOMETER_ROLE = "ResellerAdmin"
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NOVA_CONF = "/etc/nova/nova.conf"
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NOVA_SETTINGS = [
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('DEFAULT', 'instance_usage_audit', 'True'),
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('DEFAULT', 'instance_usage_audit_period', 'hour'),
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('DEFAULT', 'notification_driver', 'ceilometer.compute.nova_notifier')]
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('DEFAULT', 'notification_driver', 'ceilometer.compute.nova_notifier')
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]
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def get_shared_secret():
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@ -37,28 +45,17 @@ def get_shared_secret():
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return secret
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def modify_config_file(nova_conf, values):
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# check if config file exists
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if not os.path.exists(nova_conf):
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juju_log('ERROR', 'nova config file must exist at this point')
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sys.exit(1)
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TEMPLATES_DIR = 'templates'
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try:
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config = ConfigParser.ConfigParser()
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with open(nova_conf, "r") as f:
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config.readfp(f)
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try:
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import jinja2
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except ImportError:
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install(['python-jinja2'])
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import jinja2
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# add needed config lines - tuple with section,key,value
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for value in values:
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config.set(value[0], value[1], value[2])
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with open(nova_conf, "w") as f:
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config.write(f)
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# add line at the end, it's a dupe and configparser doesn't handle it
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with open(nova_conf, "a") as f:
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f.write("notification_driver=nova.openstack.common.notifier.rabbit_notifier\n")
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except IOError as e:
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juju_log('ERROR', 'Error updating nova config file')
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sys.exit(1)
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def render_template(template_name, context, template_dir=TEMPLATES_DIR):
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templates = \
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jinja2.Environment(loader=jinja2.FileSystemLoader(template_dir))
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template = templates.get_template(template_name)
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return template.render(context)
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@ -0,0 +1,433 @@
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import os
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from base64 import b64decode
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from subprocess import (
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check_call
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)
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from charmhelpers.fetch import (
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apt_install,
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filter_installed_packages,
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)
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from charmhelpers.core.hookenv import (
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config,
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local_unit,
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log,
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relation_get,
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relation_ids,
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related_units,
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unit_get,
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unit_private_ip,
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WARNING,
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)
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from charmhelpers.contrib.hahelpers.cluster import (
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determine_api_port,
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determine_haproxy_port,
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https,
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is_clustered,
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peer_units,
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)
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from charmhelpers.contrib.hahelpers.apache import (
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get_cert,
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get_ca_cert,
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)
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from charmhelpers.contrib.openstack.neutron import (
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neutron_plugin_attribute,
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)
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CA_CERT_PATH = '/usr/local/share/ca-certificates/keystone_juju_ca_cert.crt'
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class OSContextError(Exception):
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pass
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def ensure_packages(packages):
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'''Install but do not upgrade required plugin packages'''
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required = filter_installed_packages(packages)
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if required:
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apt_install(required, fatal=True)
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def context_complete(ctxt):
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_missing = []
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for k, v in ctxt.iteritems():
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if v is None or v == '':
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_missing.append(k)
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if _missing:
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log('Missing required data: %s' % ' '.join(_missing), level='INFO')
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return False
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return True
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class OSContextGenerator(object):
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interfaces = []
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def __call__(self):
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raise NotImplementedError
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class SharedDBContext(OSContextGenerator):
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interfaces = ['shared-db']
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def __init__(self, database=None, user=None, relation_prefix=None):
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'''
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Allows inspecting relation for settings prefixed with relation_prefix.
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This is useful for parsing access for multiple databases returned via
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the shared-db interface (eg, nova_password, quantum_password)
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'''
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self.relation_prefix = relation_prefix
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self.database = database
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self.user = user
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def __call__(self):
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self.database = self.database or config('database')
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self.user = self.user or config('database-user')
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if None in [self.database, self.user]:
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log('Could not generate shared_db context. '
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'Missing required charm config options. '
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'(database name and user)')
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raise OSContextError
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ctxt = {}
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password_setting = 'password'
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if self.relation_prefix:
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password_setting = self.relation_prefix + '_password'
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for rid in relation_ids('shared-db'):
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for unit in related_units(rid):
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passwd = relation_get(password_setting, rid=rid, unit=unit)
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ctxt = {
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'database_host': relation_get('db_host', rid=rid,
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unit=unit),
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'database': self.database,
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'database_user': self.user,
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'database_password': passwd,
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}
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if context_complete(ctxt):
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return ctxt
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return {}
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class IdentityServiceContext(OSContextGenerator):
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interfaces = ['identity-service']
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def __call__(self):
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log('Generating template context for identity-service')
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ctxt = {}
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for rid in relation_ids('identity-service'):
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for unit in related_units(rid):
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ctxt = {
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'service_port': relation_get('service_port', rid=rid,
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unit=unit),
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'service_host': relation_get('service_host', rid=rid,
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unit=unit),
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'auth_host': relation_get('auth_host', rid=rid, unit=unit),
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'auth_port': relation_get('auth_port', rid=rid, unit=unit),
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'admin_tenant_name': relation_get('service_tenant',
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rid=rid, unit=unit),
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'admin_user': relation_get('service_username', rid=rid,
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unit=unit),
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'admin_password': relation_get('service_password', rid=rid,
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unit=unit),
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# XXX: Hard-coded http.
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'service_protocol': 'http',
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'auth_protocol': 'http',
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}
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if context_complete(ctxt):
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return ctxt
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return {}
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class AMQPContext(OSContextGenerator):
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interfaces = ['amqp']
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def __call__(self):
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log('Generating template context for amqp')
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conf = config()
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try:
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username = conf['rabbit-user']
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vhost = conf['rabbit-vhost']
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except KeyError as e:
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log('Could not generate shared_db context. '
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'Missing required charm config options: %s.' % e)
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raise OSContextError
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ctxt = {}
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for rid in relation_ids('amqp'):
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for unit in related_units(rid):
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if relation_get('clustered', rid=rid, unit=unit):
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ctxt['clustered'] = True
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ctxt['rabbitmq_host'] = relation_get('vip', rid=rid,
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unit=unit)
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else:
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ctxt['rabbitmq_host'] = relation_get('private-address',
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rid=rid, unit=unit)
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ctxt.update({
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'rabbitmq_user': username,
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'rabbitmq_password': relation_get('password', rid=rid,
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unit=unit),
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'rabbitmq_virtual_host': vhost,
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})
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if context_complete(ctxt):
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# Sufficient information found = break out!
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break
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# Used for active/active rabbitmq >= grizzly
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ctxt['rabbitmq_hosts'] = []
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for unit in related_units(rid):
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ctxt['rabbitmq_hosts'].append(relation_get('private-address',
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rid=rid, unit=unit))
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if not context_complete(ctxt):
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return {}
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else:
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return ctxt
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class CephContext(OSContextGenerator):
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interfaces = ['ceph']
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def __call__(self):
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'''This generates context for /etc/ceph/ceph.conf templates'''
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if not relation_ids('ceph'):
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return {}
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log('Generating template context for ceph')
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mon_hosts = []
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auth = None
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key = None
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for rid in relation_ids('ceph'):
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for unit in related_units(rid):
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mon_hosts.append(relation_get('private-address', rid=rid,
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unit=unit))
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auth = relation_get('auth', rid=rid, unit=unit)
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key = relation_get('key', rid=rid, unit=unit)
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ctxt = {
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'mon_hosts': ' '.join(mon_hosts),
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'auth': auth,
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'key': key,
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}
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if not os.path.isdir('/etc/ceph'):
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os.mkdir('/etc/ceph')
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if not context_complete(ctxt):
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return {}
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ensure_packages(['ceph-common'])
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return ctxt
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||||
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class HAProxyContext(OSContextGenerator):
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interfaces = ['cluster']
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def __call__(self):
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'''
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Builds half a context for the haproxy template, which describes
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all peers to be included in the cluster. Each charm needs to include
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its own context generator that describes the port mapping.
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'''
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if not relation_ids('cluster'):
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return {}
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||||
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||||
cluster_hosts = {}
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l_unit = local_unit().replace('/', '-')
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||||
cluster_hosts[l_unit] = unit_get('private-address')
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||||
|
||||
for rid in relation_ids('cluster'):
|
||||
for unit in related_units(rid):
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||||
_unit = unit.replace('/', '-')
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||||
addr = relation_get('private-address', rid=rid, unit=unit)
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cluster_hosts[_unit] = addr
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||||
ctxt = {
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'units': cluster_hosts,
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||||
}
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if len(cluster_hosts.keys()) > 1:
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# Enable haproxy when we have enough peers.
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log('Ensuring haproxy enabled in /etc/default/haproxy.')
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with open('/etc/default/haproxy', 'w') as out:
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out.write('ENABLED=1\n')
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return ctxt
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log('HAProxy context is incomplete, this unit has no peers.')
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return {}
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||||
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||||
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class ImageServiceContext(OSContextGenerator):
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interfaces = ['image-service']
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def __call__(self):
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'''
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Obtains the glance API server from the image-service relation. Useful
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||||
in nova and cinder (currently).
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||||
'''
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||||
log('Generating template context for image-service.')
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rids = relation_ids('image-service')
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||||
if not rids:
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||||
return {}
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||||
for rid in rids:
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||||
for unit in related_units(rid):
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||||
api_server = relation_get('glance-api-server',
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rid=rid, unit=unit)
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||||
if api_server:
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||||
return {'glance_api_servers': api_server}
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||||
log('ImageService context is incomplete. '
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||||
'Missing required relation data.')
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||||
return {}
|
||||
|
||||
|
||||
class ApacheSSLContext(OSContextGenerator):
|
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"""
|
||||
Generates a context for an apache vhost configuration that configures
|
||||
HTTPS reverse proxying for one or many endpoints. Generated context
|
||||
looks something like:
|
||||
{
|
||||
'namespace': 'cinder',
|
||||
'private_address': 'iscsi.mycinderhost.com',
|
||||
'endpoints': [(8776, 8766), (8777, 8767)]
|
||||
}
|
||||
|
||||
The endpoints list consists of a tuples mapping external ports
|
||||
to internal ports.
|
||||
"""
|
||||
interfaces = ['https']
|
||||
|
||||
# charms should inherit this context and set external ports
|
||||
# and service namespace accordingly.
|
||||
external_ports = []
|
||||
service_namespace = None
|
||||
|
||||
def enable_modules(self):
|
||||
cmd = ['a2enmod', 'ssl', 'proxy', 'proxy_http']
|
||||
check_call(cmd)
|
||||
|
||||
def configure_cert(self):
|
||||
if not os.path.isdir('/etc/apache2/ssl'):
|
||||
os.mkdir('/etc/apache2/ssl')
|
||||
ssl_dir = os.path.join('/etc/apache2/ssl/', self.service_namespace)
|
||||
if not os.path.isdir(ssl_dir):
|
||||
os.mkdir(ssl_dir)
|
||||
cert, key = get_cert()
|
||||
with open(os.path.join(ssl_dir, 'cert'), 'w') as cert_out:
|
||||
cert_out.write(b64decode(cert))
|
||||
with open(os.path.join(ssl_dir, 'key'), 'w') as key_out:
|
||||
key_out.write(b64decode(key))
|
||||
ca_cert = get_ca_cert()
|
||||
if ca_cert:
|
||||
with open(CA_CERT_PATH, 'w') as ca_out:
|
||||
ca_out.write(b64decode(ca_cert))
|
||||
check_call(['update-ca-certificates'])
|
||||
|
||||
def __call__(self):
|
||||
if isinstance(self.external_ports, basestring):
|
||||
self.external_ports = [self.external_ports]
|
||||
if (not self.external_ports or not https()):
|
||||
return {}
|
||||
|
||||
self.configure_cert()
|
||||
self.enable_modules()
|
||||
|
||||
ctxt = {
|
||||
'namespace': self.service_namespace,
|
||||
'private_address': unit_get('private-address'),
|
||||
'endpoints': []
|
||||
}
|
||||
for ext_port in self.external_ports:
|
||||
if peer_units() or is_clustered():
|
||||
int_port = determine_haproxy_port(ext_port)
|
||||
else:
|
||||
int_port = determine_api_port(ext_port)
|
||||
portmap = (int(ext_port), int(int_port))
|
||||
ctxt['endpoints'].append(portmap)
|
||||
return ctxt
|
||||
|
||||
|
||||
class NeutronContext(object):
|
||||
interfaces = []
|
||||
|
||||
@property
|
||||
def plugin(self):
|
||||
return None
|
||||
|
||||
@property
|
||||
def network_manager(self):
|
||||
return None
|
||||
|
||||
@property
|
||||
def packages(self):
|
||||
return neutron_plugin_attribute(
|
||||
self.plugin, 'packages', self.network_manager)
|
||||
|
||||
@property
|
||||
def neutron_security_groups(self):
|
||||
return None
|
||||
|
||||
def _ensure_packages(self):
|
||||
[ensure_packages(pkgs) for pkgs in self.packages]
|
||||
|
||||
def _save_flag_file(self):
|
||||
if self.network_manager == 'quantum':
|
||||
_file = '/etc/nova/quantum_plugin.conf'
|
||||
else:
|
||||
_file = '/etc/nova/neutron_plugin.conf'
|
||||
with open(_file, 'wb') as out:
|
||||
out.write(self.plugin + '\n')
|
||||
|
||||
def ovs_ctxt(self):
|
||||
driver = neutron_plugin_attribute(self.plugin, 'driver',
|
||||
self.network_manager)
|
||||
|
||||
ovs_ctxt = {
|
||||
'core_plugin': driver,
|
||||
'neutron_plugin': 'ovs',
|
||||
'neutron_security_groups': self.neutron_security_groups,
|
||||
'local_ip': unit_private_ip(),
|
||||
}
|
||||
|
||||
return ovs_ctxt
|
||||
|
||||
def __call__(self):
|
||||
self._ensure_packages()
|
||||
|
||||
if self.network_manager not in ['quantum', 'neutron']:
|
||||
return {}
|
||||
|
||||
if not self.plugin:
|
||||
return {}
|
||||
|
||||
ctxt = {'network_manager': self.network_manager}
|
||||
|
||||
if self.plugin == 'ovs':
|
||||
ctxt.update(self.ovs_ctxt())
|
||||
|
||||
self._save_flag_file()
|
||||
return ctxt
|
||||
|
||||
|
||||
class OSConfigFlagContext(OSContextGenerator):
|
||||
'''
|
||||
Responsible adding user-defined config-flags in charm config to a
|
||||
to a template context.
|
||||
'''
|
||||
def __call__(self):
|
||||
config_flags = config('config-flags')
|
||||
if not config_flags or config_flags in ['None', '']:
|
||||
return {}
|
||||
config_flags = config_flags.split(',')
|
||||
flags = {}
|
||||
for flag in config_flags:
|
||||
if '=' not in flag:
|
||||
log('Improperly formatted config-flag, expected k=v '
|
||||
'got %s' % flag, level=WARNING)
|
||||
continue
|
||||
k, v = flag.split('=')
|
||||
flags[k.strip()] = v
|
||||
ctxt = {'user_config_flags': flags}
|
||||
return ctxt
|
||||
|
|
@ -0,0 +1,117 @@
|
|||
# Various utilies for dealing with Neutron and the renaming from Quantum.
|
||||
|
||||
from subprocess import check_output
|
||||
|
||||
from charmhelpers.core.hookenv import (
|
||||
config,
|
||||
log,
|
||||
ERROR,
|
||||
)
|
||||
|
||||
from charmhelpers.contrib.openstack.utils import os_release
|
||||
|
||||
|
||||
def headers_package():
|
||||
"""Ensures correct linux-headers for running kernel are installed,
|
||||
for building DKMS package"""
|
||||
kver = check_output(['uname', '-r']).strip()
|
||||
return 'linux-headers-%s' % kver
|
||||
|
||||
|
||||
# legacy
|
||||
def quantum_plugins():
|
||||
from charmhelpers.contrib.openstack import context
|
||||
return {
|
||||
'ovs': {
|
||||
'config': '/etc/quantum/plugins/openvswitch/'
|
||||
'ovs_quantum_plugin.ini',
|
||||
'driver': 'quantum.plugins.openvswitch.ovs_quantum_plugin.'
|
||||
'OVSQuantumPluginV2',
|
||||
'contexts': [
|
||||
context.SharedDBContext(user=config('neutron-database-user'),
|
||||
database=config('neutron-database'),
|
||||
relation_prefix='neutron')],
|
||||
'services': ['quantum-plugin-openvswitch-agent'],
|
||||
'packages': [[headers_package(), 'openvswitch-datapath-dkms'],
|
||||
['quantum-plugin-openvswitch-agent']],
|
||||
},
|
||||
'nvp': {
|
||||
'config': '/etc/quantum/plugins/nicira/nvp.ini',
|
||||
'driver': 'quantum.plugins.nicira.nicira_nvp_plugin.'
|
||||
'QuantumPlugin.NvpPluginV2',
|
||||
'services': [],
|
||||
'packages': [],
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
def neutron_plugins():
|
||||
from charmhelpers.contrib.openstack import context
|
||||
return {
|
||||
'ovs': {
|
||||
'config': '/etc/neutron/plugins/openvswitch/'
|
||||
'ovs_neutron_plugin.ini',
|
||||
'driver': 'neutron.plugins.openvswitch.ovs_neutron_plugin.'
|
||||
'OVSNeutronPluginV2',
|
||||
'contexts': [
|
||||
context.SharedDBContext(user=config('neutron-database-user'),
|
||||
database=config('neutron-database'),
|
||||
relation_prefix='neutron')],
|
||||
'services': ['neutron-plugin-openvswitch-agent'],
|
||||
'packages': [[headers_package(), 'openvswitch-datapath-dkms'],
|
||||
['quantum-plugin-openvswitch-agent']],
|
||||
},
|
||||
'nvp': {
|
||||
'config': '/etc/neutron/plugins/nicira/nvp.ini',
|
||||
'driver': 'neutron.plugins.nicira.nicira_nvp_plugin.'
|
||||
'NeutronPlugin.NvpPluginV2',
|
||||
'services': [],
|
||||
'packages': [],
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
def neutron_plugin_attribute(plugin, attr, net_manager=None):
|
||||
manager = net_manager or network_manager()
|
||||
if manager == 'quantum':
|
||||
plugins = quantum_plugins()
|
||||
elif manager == 'neutron':
|
||||
plugins = neutron_plugins()
|
||||
else:
|
||||
log('Error: Network manager does not support plugins.')
|
||||
raise Exception
|
||||
|
||||
try:
|
||||
_plugin = plugins[plugin]
|
||||
except KeyError:
|
||||
log('Unrecognised plugin for %s: %s' % (manager, plugin), level=ERROR)
|
||||
raise
|
||||
|
||||
try:
|
||||
return _plugin[attr]
|
||||
except KeyError:
|
||||
return None
|
||||
|
||||
|
||||
def network_manager():
|
||||
'''
|
||||
Deals with the renaming of Quantum to Neutron in H and any situations
|
||||
that require compatability (eg, deploying H with network-manager=quantum,
|
||||
upgrading from G).
|
||||
'''
|
||||
release = os_release('nova-common')
|
||||
manager = config('network-manager').lower()
|
||||
|
||||
if manager not in ['quantum', 'neutron']:
|
||||
return manager
|
||||
|
||||
if release in ['essex']:
|
||||
# E does not support neutron
|
||||
log('Neutron networking not supported in Essex.', level=ERROR)
|
||||
raise
|
||||
elif release in ['folsom', 'grizzly']:
|
||||
# neutron is named quantum in F and G
|
||||
return 'quantum'
|
||||
else:
|
||||
# ensure accurate naming for all releases post-H
|
||||
return 'neutron'
|
||||
|
|
@ -0,0 +1,2 @@
|
|||
# dummy __init__.py to fool syncer into thinking this is a syncable python
|
||||
# module
|
||||
|
|
@ -0,0 +1,280 @@
|
|||
import os
|
||||
|
||||
from charmhelpers.fetch import apt_install
|
||||
|
||||
from charmhelpers.core.hookenv import (
|
||||
log,
|
||||
ERROR,
|
||||
INFO
|
||||
)
|
||||
|
||||
from charmhelpers.contrib.openstack.utils import OPENSTACK_CODENAMES
|
||||
|
||||
try:
|
||||
from jinja2 import FileSystemLoader, ChoiceLoader, Environment, exceptions
|
||||
except ImportError:
|
||||
# python-jinja2 may not be installed yet, or we're running unittests.
|
||||
FileSystemLoader = ChoiceLoader = Environment = exceptions = None
|
||||
|
||||
|
||||
class OSConfigException(Exception):
|
||||
pass
|
||||
|
||||
|
||||
def get_loader(templates_dir, os_release):
|
||||
"""
|
||||
Create a jinja2.ChoiceLoader containing template dirs up to
|
||||
and including os_release. If directory template directory
|
||||
is missing at templates_dir, it will be omitted from the loader.
|
||||
templates_dir is added to the bottom of the search list as a base
|
||||
loading dir.
|
||||
|
||||
A charm may also ship a templates dir with this module
|
||||
and it will be appended to the bottom of the search list, eg:
|
||||
hooks/charmhelpers/contrib/openstack/templates.
|
||||
|
||||
:param templates_dir: str: Base template directory containing release
|
||||
sub-directories.
|
||||
:param os_release : str: OpenStack release codename to construct template
|
||||
loader.
|
||||
|
||||
:returns : jinja2.ChoiceLoader constructed with a list of
|
||||
jinja2.FilesystemLoaders, ordered in descending
|
||||
order by OpenStack release.
|
||||
"""
|
||||
tmpl_dirs = [(rel, os.path.join(templates_dir, rel))
|
||||
for rel in OPENSTACK_CODENAMES.itervalues()]
|
||||
|
||||
if not os.path.isdir(templates_dir):
|
||||
log('Templates directory not found @ %s.' % templates_dir,
|
||||
level=ERROR)
|
||||
raise OSConfigException
|
||||
|
||||
# the bottom contains tempaltes_dir and possibly a common templates dir
|
||||
# shipped with the helper.
|
||||
loaders = [FileSystemLoader(templates_dir)]
|
||||
helper_templates = os.path.join(os.path.dirname(__file__), 'templates')
|
||||
if os.path.isdir(helper_templates):
|
||||
loaders.append(FileSystemLoader(helper_templates))
|
||||
|
||||
for rel, tmpl_dir in tmpl_dirs:
|
||||
if os.path.isdir(tmpl_dir):
|
||||
loaders.insert(0, FileSystemLoader(tmpl_dir))
|
||||
if rel == os_release:
|
||||
break
|
||||
log('Creating choice loader with dirs: %s' %
|
||||
[l.searchpath for l in loaders], level=INFO)
|
||||
return ChoiceLoader(loaders)
|
||||
|
||||
|
||||
class OSConfigTemplate(object):
|
||||
"""
|
||||
Associates a config file template with a list of context generators.
|
||||
Responsible for constructing a template context based on those generators.
|
||||
"""
|
||||
def __init__(self, config_file, contexts):
|
||||
self.config_file = config_file
|
||||
|
||||
if hasattr(contexts, '__call__'):
|
||||
self.contexts = [contexts]
|
||||
else:
|
||||
self.contexts = contexts
|
||||
|
||||
self._complete_contexts = []
|
||||
|
||||
def context(self):
|
||||
ctxt = {}
|
||||
for context in self.contexts:
|
||||
_ctxt = context()
|
||||
if _ctxt:
|
||||
ctxt.update(_ctxt)
|
||||
# track interfaces for every complete context.
|
||||
[self._complete_contexts.append(interface)
|
||||
for interface in context.interfaces
|
||||
if interface not in self._complete_contexts]
|
||||
return ctxt
|
||||
|
||||
def complete_contexts(self):
|
||||
'''
|
||||
Return a list of interfaces that have atisfied contexts.
|
||||
'''
|
||||
if self._complete_contexts:
|
||||
return self._complete_contexts
|
||||
self.context()
|
||||
return self._complete_contexts
|
||||
|
||||
|
||||
class OSConfigRenderer(object):
|
||||
"""
|
||||
This class provides a common templating system to be used by OpenStack
|
||||
charms. It is intended to help charms share common code and templates,
|
||||
and ease the burden of managing config templates across multiple OpenStack
|
||||
releases.
|
||||
|
||||
Basic usage:
|
||||
# import some common context generates from charmhelpers
|
||||
from charmhelpers.contrib.openstack import context
|
||||
|
||||
# Create a renderer object for a specific OS release.
|
||||
configs = OSConfigRenderer(templates_dir='/tmp/templates',
|
||||
openstack_release='folsom')
|
||||
# register some config files with context generators.
|
||||
configs.register(config_file='/etc/nova/nova.conf',
|
||||
contexts=[context.SharedDBContext(),
|
||||
context.AMQPContext()])
|
||||
configs.register(config_file='/etc/nova/api-paste.ini',
|
||||
contexts=[context.IdentityServiceContext()])
|
||||
configs.register(config_file='/etc/haproxy/haproxy.conf',
|
||||
contexts=[context.HAProxyContext()])
|
||||
# write out a single config
|
||||
configs.write('/etc/nova/nova.conf')
|
||||
# write out all registered configs
|
||||
configs.write_all()
|
||||
|
||||
Details:
|
||||
|
||||
OpenStack Releases and template loading
|
||||
---------------------------------------
|
||||
When the object is instantiated, it is associated with a specific OS
|
||||
release. This dictates how the template loader will be constructed.
|
||||
|
||||
The constructed loader attempts to load the template from several places
|
||||
in the following order:
|
||||
- from the most recent OS release-specific template dir (if one exists)
|
||||
- the base templates_dir
|
||||
- a template directory shipped in the charm with this helper file.
|
||||
|
||||
|
||||
For the example above, '/tmp/templates' contains the following structure:
|
||||
/tmp/templates/nova.conf
|
||||
/tmp/templates/api-paste.ini
|
||||
/tmp/templates/grizzly/api-paste.ini
|
||||
/tmp/templates/havana/api-paste.ini
|
||||
|
||||
Since it was registered with the grizzly release, it first seraches
|
||||
the grizzly directory for nova.conf, then the templates dir.
|
||||
|
||||
When writing api-paste.ini, it will find the template in the grizzly
|
||||
directory.
|
||||
|
||||
If the object were created with folsom, it would fall back to the
|
||||
base templates dir for its api-paste.ini template.
|
||||
|
||||
This system should help manage changes in config files through
|
||||
openstack releases, allowing charms to fall back to the most recently
|
||||
updated config template for a given release
|
||||
|
||||
The haproxy.conf, since it is not shipped in the templates dir, will
|
||||
be loaded from the module directory's template directory, eg
|
||||
$CHARM/hooks/charmhelpers/contrib/openstack/templates. This allows
|
||||
us to ship common templates (haproxy, apache) with the helpers.
|
||||
|
||||
Context generators
|
||||
---------------------------------------
|
||||
Context generators are used to generate template contexts during hook
|
||||
execution. Doing so may require inspecting service relations, charm
|
||||
config, etc. When registered, a config file is associated with a list
|
||||
of generators. When a template is rendered and written, all context
|
||||
generates are called in a chain to generate the context dictionary
|
||||
passed to the jinja2 template. See context.py for more info.
|
||||
"""
|
||||
def __init__(self, templates_dir, openstack_release):
|
||||
if not os.path.isdir(templates_dir):
|
||||
log('Could not locate templates dir %s' % templates_dir,
|
||||
level=ERROR)
|
||||
raise OSConfigException
|
||||
|
||||
self.templates_dir = templates_dir
|
||||
self.openstack_release = openstack_release
|
||||
self.templates = {}
|
||||
self._tmpl_env = None
|
||||
|
||||
if None in [Environment, ChoiceLoader, FileSystemLoader]:
|
||||
# if this code is running, the object is created pre-install hook.
|
||||
# jinja2 shouldn't get touched until the module is reloaded on next
|
||||
# hook execution, with proper jinja2 bits successfully imported.
|
||||
apt_install('python-jinja2')
|
||||
|
||||
def register(self, config_file, contexts):
|
||||
"""
|
||||
Register a config file with a list of context generators to be called
|
||||
during rendering.
|
||||
"""
|
||||
self.templates[config_file] = OSConfigTemplate(config_file=config_file,
|
||||
contexts=contexts)
|
||||
log('Registered config file: %s' % config_file, level=INFO)
|
||||
|
||||
def _get_tmpl_env(self):
|
||||
if not self._tmpl_env:
|
||||
loader = get_loader(self.templates_dir, self.openstack_release)
|
||||
self._tmpl_env = Environment(loader=loader)
|
||||
|
||||
def _get_template(self, template):
|
||||
self._get_tmpl_env()
|
||||
template = self._tmpl_env.get_template(template)
|
||||
log('Loaded template from %s' % template.filename, level=INFO)
|
||||
return template
|
||||
|
||||
def render(self, config_file):
|
||||
if config_file not in self.templates:
|
||||
log('Config not registered: %s' % config_file, level=ERROR)
|
||||
raise OSConfigException
|
||||
ctxt = self.templates[config_file].context()
|
||||
|
||||
_tmpl = os.path.basename(config_file)
|
||||
try:
|
||||
template = self._get_template(_tmpl)
|
||||
except exceptions.TemplateNotFound:
|
||||
# if no template is found with basename, try looking for it
|
||||
# using a munged full path, eg:
|
||||
# /etc/apache2/apache2.conf -> etc_apache2_apache2.conf
|
||||
_tmpl = '_'.join(config_file.split('/')[1:])
|
||||
try:
|
||||
template = self._get_template(_tmpl)
|
||||
except exceptions.TemplateNotFound as e:
|
||||
log('Could not load template from %s by %s or %s.' %
|
||||
(self.templates_dir, os.path.basename(config_file), _tmpl),
|
||||
level=ERROR)
|
||||
raise e
|
||||
|
||||
log('Rendering from template: %s' % _tmpl, level=INFO)
|
||||
return template.render(ctxt)
|
||||
|
||||
def write(self, config_file):
|
||||
"""
|
||||
Write a single config file, raises if config file is not registered.
|
||||
"""
|
||||
if config_file not in self.templates:
|
||||
log('Config not registered: %s' % config_file, level=ERROR)
|
||||
raise OSConfigException
|
||||
|
||||
_out = self.render(config_file)
|
||||
|
||||
with open(config_file, 'wb') as out:
|
||||
out.write(_out)
|
||||
|
||||
log('Wrote template %s.' % config_file, level=INFO)
|
||||
|
||||
def write_all(self):
|
||||
"""
|
||||
Write out all registered config files.
|
||||
"""
|
||||
[self.write(k) for k in self.templates.iterkeys()]
|
||||
|
||||
def set_release(self, openstack_release):
|
||||
"""
|
||||
Resets the template environment and generates a new template loader
|
||||
based on a the new openstack release.
|
||||
"""
|
||||
self._tmpl_env = None
|
||||
self.openstack_release = openstack_release
|
||||
self._get_tmpl_env()
|
||||
|
||||
def complete_contexts(self):
|
||||
'''
|
||||
Returns a list of context interfaces that yield a complete context.
|
||||
'''
|
||||
interfaces = []
|
||||
[interfaces.extend(i.complete_contexts())
|
||||
for i in self.templates.itervalues()]
|
||||
return interfaces
|
||||
|
|
@ -0,0 +1,365 @@
|
|||
#!/usr/bin/python
|
||||
|
||||
# Common python helper functions used for OpenStack charms.
|
||||
from collections import OrderedDict
|
||||
|
||||
import apt_pkg as apt
|
||||
import subprocess
|
||||
import os
|
||||
import socket
|
||||
import sys
|
||||
|
||||
from charmhelpers.core.hookenv import (
|
||||
config,
|
||||
log as juju_log,
|
||||
charm_dir,
|
||||
)
|
||||
|
||||
from charmhelpers.core.host import (
|
||||
lsb_release,
|
||||
)
|
||||
|
||||
from charmhelpers.fetch import (
|
||||
apt_install,
|
||||
)
|
||||
|
||||
CLOUD_ARCHIVE_URL = "http://ubuntu-cloud.archive.canonical.com/ubuntu"
|
||||
CLOUD_ARCHIVE_KEY_ID = '5EDB1B62EC4926EA'
|
||||
|
||||
UBUNTU_OPENSTACK_RELEASE = OrderedDict([
|
||||
('oneiric', 'diablo'),
|
||||
('precise', 'essex'),
|
||||
('quantal', 'folsom'),
|
||||
('raring', 'grizzly'),
|
||||
('saucy', 'havana'),
|
||||
])
|
||||
|
||||
|
||||
OPENSTACK_CODENAMES = OrderedDict([
|
||||
('2011.2', 'diablo'),
|
||||
('2012.1', 'essex'),
|
||||
('2012.2', 'folsom'),
|
||||
('2013.1', 'grizzly'),
|
||||
('2013.2', 'havana'),
|
||||
('2014.1', 'icehouse'),
|
||||
])
|
||||
|
||||
# The ugly duckling
|
||||
SWIFT_CODENAMES = OrderedDict([
|
||||
('1.4.3', 'diablo'),
|
||||
('1.4.8', 'essex'),
|
||||
('1.7.4', 'folsom'),
|
||||
('1.8.0', 'grizzly'),
|
||||
('1.7.7', 'grizzly'),
|
||||
('1.7.6', 'grizzly'),
|
||||
('1.10.0', 'havana'),
|
||||
('1.9.1', 'havana'),
|
||||
('1.9.0', 'havana'),
|
||||
])
|
||||
|
||||
|
||||
def error_out(msg):
|
||||
juju_log("FATAL ERROR: %s" % msg, level='ERROR')
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
def get_os_codename_install_source(src):
|
||||
'''Derive OpenStack release codename from a given installation source.'''
|
||||
ubuntu_rel = lsb_release()['DISTRIB_CODENAME']
|
||||
rel = ''
|
||||
if src == 'distro':
|
||||
try:
|
||||
rel = UBUNTU_OPENSTACK_RELEASE[ubuntu_rel]
|
||||
except KeyError:
|
||||
e = 'Could not derive openstack release for '\
|
||||
'this Ubuntu release: %s' % ubuntu_rel
|
||||
error_out(e)
|
||||
return rel
|
||||
|
||||
if src.startswith('cloud:'):
|
||||
ca_rel = src.split(':')[1]
|
||||
ca_rel = ca_rel.split('%s-' % ubuntu_rel)[1].split('/')[0]
|
||||
return ca_rel
|
||||
|
||||
# Best guess match based on deb string provided
|
||||
if src.startswith('deb') or src.startswith('ppa'):
|
||||
for k, v in OPENSTACK_CODENAMES.iteritems():
|
||||
if v in src:
|
||||
return v
|
||||
|
||||
|
||||
def get_os_version_install_source(src):
|
||||
codename = get_os_codename_install_source(src)
|
||||
return get_os_version_codename(codename)
|
||||
|
||||
|
||||
def get_os_codename_version(vers):
|
||||
'''Determine OpenStack codename from version number.'''
|
||||
try:
|
||||
return OPENSTACK_CODENAMES[vers]
|
||||
except KeyError:
|
||||
e = 'Could not determine OpenStack codename for version %s' % vers
|
||||
error_out(e)
|
||||
|
||||
|
||||
def get_os_version_codename(codename):
|
||||
'''Determine OpenStack version number from codename.'''
|
||||
for k, v in OPENSTACK_CODENAMES.iteritems():
|
||||
if v == codename:
|
||||
return k
|
||||
e = 'Could not derive OpenStack version for '\
|
||||
'codename: %s' % codename
|
||||
error_out(e)
|
||||
|
||||
|
||||
def get_os_codename_package(package, fatal=True):
|
||||
'''Derive OpenStack release codename from an installed package.'''
|
||||
apt.init()
|
||||
cache = apt.Cache()
|
||||
|
||||
try:
|
||||
pkg = cache[package]
|
||||
except:
|
||||
if not fatal:
|
||||
return None
|
||||
# the package is unknown to the current apt cache.
|
||||
e = 'Could not determine version of package with no installation '\
|
||||
'candidate: %s' % package
|
||||
error_out(e)
|
||||
|
||||
if not pkg.current_ver:
|
||||
if not fatal:
|
||||
return None
|
||||
# package is known, but no version is currently installed.
|
||||
e = 'Could not determine version of uninstalled package: %s' % package
|
||||
error_out(e)
|
||||
|
||||
vers = apt.upstream_version(pkg.current_ver.ver_str)
|
||||
|
||||
try:
|
||||
if 'swift' in pkg.name:
|
||||
swift_vers = vers[:5]
|
||||
if swift_vers not in SWIFT_CODENAMES:
|
||||
# Deal with 1.10.0 upward
|
||||
swift_vers = vers[:6]
|
||||
return SWIFT_CODENAMES[swift_vers]
|
||||
else:
|
||||
vers = vers[:6]
|
||||
return OPENSTACK_CODENAMES[vers]
|
||||
except KeyError:
|
||||
e = 'Could not determine OpenStack codename for version %s' % vers
|
||||
error_out(e)
|
||||
|
||||
|
||||
def get_os_version_package(pkg, fatal=True):
|
||||
'''Derive OpenStack version number from an installed package.'''
|
||||
codename = get_os_codename_package(pkg, fatal=fatal)
|
||||
|
||||
if not codename:
|
||||
return None
|
||||
|
||||
if 'swift' in pkg:
|
||||
vers_map = SWIFT_CODENAMES
|
||||
else:
|
||||
vers_map = OPENSTACK_CODENAMES
|
||||
|
||||
for version, cname in vers_map.iteritems():
|
||||
if cname == codename:
|
||||
return version
|
||||
#e = "Could not determine OpenStack version for package: %s" % pkg
|
||||
#error_out(e)
|
||||
|
||||
|
||||
os_rel = None
|
||||
|
||||
|
||||
def os_release(package, base='essex'):
|
||||
'''
|
||||
Returns OpenStack release codename from a cached global.
|
||||
If the codename can not be determined from either an installed package or
|
||||
the installation source, the earliest release supported by the charm should
|
||||
be returned.
|
||||
'''
|
||||
global os_rel
|
||||
if os_rel:
|
||||
return os_rel
|
||||
os_rel = (get_os_codename_package(package, fatal=False) or
|
||||
get_os_codename_install_source(config('openstack-origin')) or
|
||||
base)
|
||||
return os_rel
|
||||
|
||||
|
||||
def import_key(keyid):
|
||||
cmd = "apt-key adv --keyserver keyserver.ubuntu.com " \
|
||||
"--recv-keys %s" % keyid
|
||||
try:
|
||||
subprocess.check_call(cmd.split(' '))
|
||||
except subprocess.CalledProcessError:
|
||||
error_out("Error importing repo key %s" % keyid)
|
||||
|
||||
|
||||
def configure_installation_source(rel):
|
||||
'''Configure apt installation source.'''
|
||||
if rel == 'distro':
|
||||
return
|
||||
elif rel[:4] == "ppa:":
|
||||
src = rel
|
||||
subprocess.check_call(["add-apt-repository", "-y", src])
|
||||
elif rel[:3] == "deb":
|
||||
l = len(rel.split('|'))
|
||||
if l == 2:
|
||||
src, key = rel.split('|')
|
||||
juju_log("Importing PPA key from keyserver for %s" % src)
|
||||
import_key(key)
|
||||
elif l == 1:
|
||||
src = rel
|
||||
with open('/etc/apt/sources.list.d/juju_deb.list', 'w') as f:
|
||||
f.write(src)
|
||||
elif rel[:6] == 'cloud:':
|
||||
ubuntu_rel = lsb_release()['DISTRIB_CODENAME']
|
||||
rel = rel.split(':')[1]
|
||||
u_rel = rel.split('-')[0]
|
||||
ca_rel = rel.split('-')[1]
|
||||
|
||||
if u_rel != ubuntu_rel:
|
||||
e = 'Cannot install from Cloud Archive pocket %s on this Ubuntu '\
|
||||
'version (%s)' % (ca_rel, ubuntu_rel)
|
||||
error_out(e)
|
||||
|
||||
if 'staging' in ca_rel:
|
||||
# staging is just a regular PPA.
|
||||
os_rel = ca_rel.split('/')[0]
|
||||
ppa = 'ppa:ubuntu-cloud-archive/%s-staging' % os_rel
|
||||
cmd = 'add-apt-repository -y %s' % ppa
|
||||
subprocess.check_call(cmd.split(' '))
|
||||
return
|
||||
|
||||
# map charm config options to actual archive pockets.
|
||||
pockets = {
|
||||
'folsom': 'precise-updates/folsom',
|
||||
'folsom/updates': 'precise-updates/folsom',
|
||||
'folsom/proposed': 'precise-proposed/folsom',
|
||||
'grizzly': 'precise-updates/grizzly',
|
||||
'grizzly/updates': 'precise-updates/grizzly',
|
||||
'grizzly/proposed': 'precise-proposed/grizzly',
|
||||
'havana': 'precise-updates/havana',
|
||||
'havana/updates': 'precise-updates/havana',
|
||||
'havana/proposed': 'precise-proposed/havana',
|
||||
}
|
||||
|
||||
try:
|
||||
pocket = pockets[ca_rel]
|
||||
except KeyError:
|
||||
e = 'Invalid Cloud Archive release specified: %s' % rel
|
||||
error_out(e)
|
||||
|
||||
src = "deb %s %s main" % (CLOUD_ARCHIVE_URL, pocket)
|
||||
apt_install('ubuntu-cloud-keyring', fatal=True)
|
||||
|
||||
with open('/etc/apt/sources.list.d/cloud-archive.list', 'w') as f:
|
||||
f.write(src)
|
||||
else:
|
||||
error_out("Invalid openstack-release specified: %s" % rel)
|
||||
|
||||
|
||||
def save_script_rc(script_path="scripts/scriptrc", **env_vars):
|
||||
"""
|
||||
Write an rc file in the charm-delivered directory containing
|
||||
exported environment variables provided by env_vars. Any charm scripts run
|
||||
outside the juju hook environment can source this scriptrc to obtain
|
||||
updated config information necessary to perform health checks or
|
||||
service changes.
|
||||
"""
|
||||
juju_rc_path = "%s/%s" % (charm_dir(), script_path)
|
||||
if not os.path.exists(os.path.dirname(juju_rc_path)):
|
||||
os.mkdir(os.path.dirname(juju_rc_path))
|
||||
with open(juju_rc_path, 'wb') as rc_script:
|
||||
rc_script.write(
|
||||
"#!/bin/bash\n")
|
||||
[rc_script.write('export %s=%s\n' % (u, p))
|
||||
for u, p in env_vars.iteritems() if u != "script_path"]
|
||||
|
||||
|
||||
def openstack_upgrade_available(package):
|
||||
"""
|
||||
Determines if an OpenStack upgrade is available from installation
|
||||
source, based on version of installed package.
|
||||
|
||||
:param package: str: Name of installed package.
|
||||
|
||||
:returns: bool: : Returns True if configured installation source offers
|
||||
a newer version of package.
|
||||
|
||||
"""
|
||||
|
||||
src = config('openstack-origin')
|
||||
cur_vers = get_os_version_package(package)
|
||||
available_vers = get_os_version_install_source(src)
|
||||
apt.init()
|
||||
return apt.version_compare(available_vers, cur_vers) == 1
|
||||
|
||||
|
||||
def is_ip(address):
|
||||
"""
|
||||
Returns True if address is a valid IP address.
|
||||
"""
|
||||
try:
|
||||
# Test to see if already an IPv4 address
|
||||
socket.inet_aton(address)
|
||||
return True
|
||||
except socket.error:
|
||||
return False
|
||||
|
||||
|
||||
def ns_query(address):
|
||||
try:
|
||||
import dns.resolver
|
||||
except ImportError:
|
||||
apt_install('python-dnspython')
|
||||
import dns.resolver
|
||||
|
||||
if isinstance(address, dns.name.Name):
|
||||
rtype = 'PTR'
|
||||
elif isinstance(address, basestring):
|
||||
rtype = 'A'
|
||||
|
||||
answers = dns.resolver.query(address, rtype)
|
||||
if answers:
|
||||
return str(answers[0])
|
||||
return None
|
||||
|
||||
|
||||
def get_host_ip(hostname):
|
||||
"""
|
||||
Resolves the IP for a given hostname, or returns
|
||||
the input if it is already an IP.
|
||||
"""
|
||||
if is_ip(hostname):
|
||||
return hostname
|
||||
|
||||
return ns_query(hostname)
|
||||
|
||||
|
||||
def get_hostname(address):
|
||||
"""
|
||||
Resolves hostname for given IP, or returns the input
|
||||
if it is already a hostname.
|
||||
"""
|
||||
if not is_ip(address):
|
||||
return address
|
||||
|
||||
try:
|
||||
import dns.reversename
|
||||
except ImportError:
|
||||
apt_install('python-dnspython')
|
||||
import dns.reversename
|
||||
|
||||
rev = dns.reversename.from_address(address)
|
||||
result = ns_query(rev)
|
||||
if not result:
|
||||
return None
|
||||
|
||||
# strip trailing .
|
||||
if result.endswith('.'):
|
||||
return result[:-1]
|
||||
return result
|
||||
|
|
@ -0,0 +1,340 @@
|
|||
"Interactions with the Juju environment"
|
||||
# Copyright 2013 Canonical Ltd.
|
||||
#
|
||||
# Authors:
|
||||
# Charm Helpers Developers <juju@lists.ubuntu.com>
|
||||
|
||||
import os
|
||||
import json
|
||||
import yaml
|
||||
import subprocess
|
||||
import UserDict
|
||||
|
||||
CRITICAL = "CRITICAL"
|
||||
ERROR = "ERROR"
|
||||
WARNING = "WARNING"
|
||||
INFO = "INFO"
|
||||
DEBUG = "DEBUG"
|
||||
MARKER = object()
|
||||
|
||||
cache = {}
|
||||
|
||||
|
||||
def cached(func):
|
||||
''' Cache return values for multiple executions of func + args
|
||||
|
||||
For example:
|
||||
|
||||
@cached
|
||||
def unit_get(attribute):
|
||||
pass
|
||||
|
||||
unit_get('test')
|
||||
|
||||
will cache the result of unit_get + 'test' for future calls.
|
||||
'''
|
||||
def wrapper(*args, **kwargs):
|
||||
global cache
|
||||
key = str((func, args, kwargs))
|
||||
try:
|
||||
return cache[key]
|
||||
except KeyError:
|
||||
res = func(*args, **kwargs)
|
||||
cache[key] = res
|
||||
return res
|
||||
return wrapper
|
||||
|
||||
|
||||
def flush(key):
|
||||
''' Flushes any entries from function cache where the
|
||||
key is found in the function+args '''
|
||||
flush_list = []
|
||||
for item in cache:
|
||||
if key in item:
|
||||
flush_list.append(item)
|
||||
for item in flush_list:
|
||||
del cache[item]
|
||||
|
||||
|
||||
def log(message, level=None):
|
||||
"Write a message to the juju log"
|
||||
command = ['juju-log']
|
||||
if level:
|
||||
command += ['-l', level]
|
||||
command += [message]
|
||||
subprocess.call(command)
|
||||
|
||||
|
||||
class Serializable(UserDict.IterableUserDict):
|
||||
"Wrapper, an object that can be serialized to yaml or json"
|
||||
|
||||
def __init__(self, obj):
|
||||
# wrap the object
|
||||
UserDict.IterableUserDict.__init__(self)
|
||||
self.data = obj
|
||||
|
||||
def __getattr__(self, attr):
|
||||
# See if this object has attribute.
|
||||
if attr in ("json", "yaml", "data"):
|
||||
return self.__dict__[attr]
|
||||
# Check for attribute in wrapped object.
|
||||
got = getattr(self.data, attr, MARKER)
|
||||
if got is not MARKER:
|
||||
return got
|
||||
# Proxy to the wrapped object via dict interface.
|
||||
try:
|
||||
return self.data[attr]
|
||||
except KeyError:
|
||||
raise AttributeError(attr)
|
||||
|
||||
def __getstate__(self):
|
||||
# Pickle as a standard dictionary.
|
||||
return self.data
|
||||
|
||||
def __setstate__(self, state):
|
||||
# Unpickle into our wrapper.
|
||||
self.data = state
|
||||
|
||||
def json(self):
|
||||
"Serialize the object to json"
|
||||
return json.dumps(self.data)
|
||||
|
||||
def yaml(self):
|
||||
"Serialize the object to yaml"
|
||||
return yaml.dump(self.data)
|
||||
|
||||
|
||||
def execution_environment():
|
||||
"""A convenient bundling of the current execution context"""
|
||||
context = {}
|
||||
context['conf'] = config()
|
||||
if relation_id():
|
||||
context['reltype'] = relation_type()
|
||||
context['relid'] = relation_id()
|
||||
context['rel'] = relation_get()
|
||||
context['unit'] = local_unit()
|
||||
context['rels'] = relations()
|
||||
context['env'] = os.environ
|
||||
return context
|
||||
|
||||
|
||||
def in_relation_hook():
|
||||
"Determine whether we're running in a relation hook"
|
||||
return 'JUJU_RELATION' in os.environ
|
||||
|
||||
|
||||
def relation_type():
|
||||
"The scope for the current relation hook"
|
||||
return os.environ.get('JUJU_RELATION', None)
|
||||
|
||||
|
||||
def relation_id():
|
||||
"The relation ID for the current relation hook"
|
||||
return os.environ.get('JUJU_RELATION_ID', None)
|
||||
|
||||
|
||||
def local_unit():
|
||||
"Local unit ID"
|
||||
return os.environ['JUJU_UNIT_NAME']
|
||||
|
||||
|
||||
def remote_unit():
|
||||
"The remote unit for the current relation hook"
|
||||
return os.environ['JUJU_REMOTE_UNIT']
|
||||
|
||||
|
||||
def service_name():
|
||||
"The name service group this unit belongs to"
|
||||
return local_unit().split('/')[0]
|
||||
|
||||
|
||||
@cached
|
||||
def config(scope=None):
|
||||
"Juju charm configuration"
|
||||
config_cmd_line = ['config-get']
|
||||
if scope is not None:
|
||||
config_cmd_line.append(scope)
|
||||
config_cmd_line.append('--format=json')
|
||||
try:
|
||||
return json.loads(subprocess.check_output(config_cmd_line))
|
||||
except ValueError:
|
||||
return None
|
||||
|
||||
|
||||
@cached
|
||||
def relation_get(attribute=None, unit=None, rid=None):
|
||||
_args = ['relation-get', '--format=json']
|
||||
if rid:
|
||||
_args.append('-r')
|
||||
_args.append(rid)
|
||||
_args.append(attribute or '-')
|
||||
if unit:
|
||||
_args.append(unit)
|
||||
try:
|
||||
return json.loads(subprocess.check_output(_args))
|
||||
except ValueError:
|
||||
return None
|
||||
|
||||
|
||||
def relation_set(relation_id=None, relation_settings={}, **kwargs):
|
||||
relation_cmd_line = ['relation-set']
|
||||
if relation_id is not None:
|
||||
relation_cmd_line.extend(('-r', relation_id))
|
||||
for k, v in (relation_settings.items() + kwargs.items()):
|
||||
if v is None:
|
||||
relation_cmd_line.append('{}='.format(k))
|
||||
else:
|
||||
relation_cmd_line.append('{}={}'.format(k, v))
|
||||
subprocess.check_call(relation_cmd_line)
|
||||
# Flush cache of any relation-gets for local unit
|
||||
flush(local_unit())
|
||||
|
||||
|
||||
@cached
|
||||
def relation_ids(reltype=None):
|
||||
"A list of relation_ids"
|
||||
reltype = reltype or relation_type()
|
||||
relid_cmd_line = ['relation-ids', '--format=json']
|
||||
if reltype is not None:
|
||||
relid_cmd_line.append(reltype)
|
||||
return json.loads(subprocess.check_output(relid_cmd_line)) or []
|
||||
return []
|
||||
|
||||
|
||||
@cached
|
||||
def related_units(relid=None):
|
||||
"A list of related units"
|
||||
relid = relid or relation_id()
|
||||
units_cmd_line = ['relation-list', '--format=json']
|
||||
if relid is not None:
|
||||
units_cmd_line.extend(('-r', relid))
|
||||
return json.loads(subprocess.check_output(units_cmd_line)) or []
|
||||
|
||||
|
||||
@cached
|
||||
def relation_for_unit(unit=None, rid=None):
|
||||
"Get the json represenation of a unit's relation"
|
||||
unit = unit or remote_unit()
|
||||
relation = relation_get(unit=unit, rid=rid)
|
||||
for key in relation:
|
||||
if key.endswith('-list'):
|
||||
relation[key] = relation[key].split()
|
||||
relation['__unit__'] = unit
|
||||
return relation
|
||||
|
||||
|
||||
@cached
|
||||
def relations_for_id(relid=None):
|
||||
"Get relations of a specific relation ID"
|
||||
relation_data = []
|
||||
relid = relid or relation_ids()
|
||||
for unit in related_units(relid):
|
||||
unit_data = relation_for_unit(unit, relid)
|
||||
unit_data['__relid__'] = relid
|
||||
relation_data.append(unit_data)
|
||||
return relation_data
|
||||
|
||||
|
||||
@cached
|
||||
def relations_of_type(reltype=None):
|
||||
"Get relations of a specific type"
|
||||
relation_data = []
|
||||
reltype = reltype or relation_type()
|
||||
for relid in relation_ids(reltype):
|
||||
for relation in relations_for_id(relid):
|
||||
relation['__relid__'] = relid
|
||||
relation_data.append(relation)
|
||||
return relation_data
|
||||
|
||||
|
||||
@cached
|
||||
def relation_types():
|
||||
"Get a list of relation types supported by this charm"
|
||||
charmdir = os.environ.get('CHARM_DIR', '')
|
||||
mdf = open(os.path.join(charmdir, 'metadata.yaml'))
|
||||
md = yaml.safe_load(mdf)
|
||||
rel_types = []
|
||||
for key in ('provides', 'requires', 'peers'):
|
||||
section = md.get(key)
|
||||
if section:
|
||||
rel_types.extend(section.keys())
|
||||
mdf.close()
|
||||
return rel_types
|
||||
|
||||
|
||||
@cached
|
||||
def relations():
|
||||
rels = {}
|
||||
for reltype in relation_types():
|
||||
relids = {}
|
||||
for relid in relation_ids(reltype):
|
||||
units = {local_unit(): relation_get(unit=local_unit(), rid=relid)}
|
||||
for unit in related_units(relid):
|
||||
reldata = relation_get(unit=unit, rid=relid)
|
||||
units[unit] = reldata
|
||||
relids[relid] = units
|
||||
rels[reltype] = relids
|
||||
return rels
|
||||
|
||||
|
||||
def open_port(port, protocol="TCP"):
|
||||
"Open a service network port"
|
||||
_args = ['open-port']
|
||||
_args.append('{}/{}'.format(port, protocol))
|
||||
subprocess.check_call(_args)
|
||||
|
||||
|
||||
def close_port(port, protocol="TCP"):
|
||||
"Close a service network port"
|
||||
_args = ['close-port']
|
||||
_args.append('{}/{}'.format(port, protocol))
|
||||
subprocess.check_call(_args)
|
||||
|
||||
|
||||
@cached
|
||||
def unit_get(attribute):
|
||||
_args = ['unit-get', '--format=json', attribute]
|
||||
try:
|
||||
return json.loads(subprocess.check_output(_args))
|
||||
except ValueError:
|
||||
return None
|
||||
|
||||
|
||||
def unit_private_ip():
|
||||
return unit_get('private-address')
|
||||
|
||||
|
||||
class UnregisteredHookError(Exception):
|
||||
pass
|
||||
|
||||
|
||||
class Hooks(object):
|
||||
def __init__(self):
|
||||
super(Hooks, self).__init__()
|
||||
self._hooks = {}
|
||||
|
||||
def register(self, name, function):
|
||||
self._hooks[name] = function
|
||||
|
||||
def execute(self, args):
|
||||
hook_name = os.path.basename(args[0])
|
||||
if hook_name in self._hooks:
|
||||
self._hooks[hook_name]()
|
||||
else:
|
||||
raise UnregisteredHookError(hook_name)
|
||||
|
||||
def hook(self, *hook_names):
|
||||
def wrapper(decorated):
|
||||
for hook_name in hook_names:
|
||||
self.register(hook_name, decorated)
|
||||
else:
|
||||
self.register(decorated.__name__, decorated)
|
||||
if '_' in decorated.__name__:
|
||||
self.register(
|
||||
decorated.__name__.replace('_', '-'), decorated)
|
||||
return decorated
|
||||
return wrapper
|
||||
|
||||
|
||||
def charm_dir():
|
||||
return os.environ.get('CHARM_DIR')
|
||||
|
|
@ -0,0 +1,241 @@
|
|||
"""Tools for working with the host system"""
|
||||
# Copyright 2012 Canonical Ltd.
|
||||
#
|
||||
# Authors:
|
||||
# Nick Moffitt <nick.moffitt@canonical.com>
|
||||
# Matthew Wedgwood <matthew.wedgwood@canonical.com>
|
||||
|
||||
import os
|
||||
import pwd
|
||||
import grp
|
||||
import random
|
||||
import string
|
||||
import subprocess
|
||||
import hashlib
|
||||
|
||||
from collections import OrderedDict
|
||||
|
||||
from hookenv import log
|
||||
|
||||
|
||||
def service_start(service_name):
|
||||
return service('start', service_name)
|
||||
|
||||
|
||||
def service_stop(service_name):
|
||||
return service('stop', service_name)
|
||||
|
||||
|
||||
def service_restart(service_name):
|
||||
return service('restart', service_name)
|
||||
|
||||
|
||||
def service_reload(service_name, restart_on_failure=False):
|
||||
service_result = service('reload', service_name)
|
||||
if not service_result and restart_on_failure:
|
||||
service_result = service('restart', service_name)
|
||||
return service_result
|
||||
|
||||
|
||||
def service(action, service_name):
|
||||
cmd = ['service', service_name, action]
|
||||
return subprocess.call(cmd) == 0
|
||||
|
||||
|
||||
def service_running(service):
|
||||
try:
|
||||
output = subprocess.check_output(['service', service, 'status'])
|
||||
except subprocess.CalledProcessError:
|
||||
return False
|
||||
else:
|
||||
if ("start/running" in output or "is running" in output):
|
||||
return True
|
||||
else:
|
||||
return False
|
||||
|
||||
|
||||
def adduser(username, password=None, shell='/bin/bash', system_user=False):
|
||||
"""Add a user"""
|
||||
try:
|
||||
user_info = pwd.getpwnam(username)
|
||||
log('user {0} already exists!'.format(username))
|
||||
except KeyError:
|
||||
log('creating user {0}'.format(username))
|
||||
cmd = ['useradd']
|
||||
if system_user or password is None:
|
||||
cmd.append('--system')
|
||||
else:
|
||||
cmd.extend([
|
||||
'--create-home',
|
||||
'--shell', shell,
|
||||
'--password', password,
|
||||
])
|
||||
cmd.append(username)
|
||||
subprocess.check_call(cmd)
|
||||
user_info = pwd.getpwnam(username)
|
||||
return user_info
|
||||
|
||||
|
||||
def add_user_to_group(username, group):
|
||||
"""Add a user to a group"""
|
||||
cmd = [
|
||||
'gpasswd', '-a',
|
||||
username,
|
||||
group
|
||||
]
|
||||
log("Adding user {} to group {}".format(username, group))
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
|
||||
def rsync(from_path, to_path, flags='-r', options=None):
|
||||
"""Replicate the contents of a path"""
|
||||
options = options or ['--delete', '--executability']
|
||||
cmd = ['/usr/bin/rsync', flags]
|
||||
cmd.extend(options)
|
||||
cmd.append(from_path)
|
||||
cmd.append(to_path)
|
||||
log(" ".join(cmd))
|
||||
return subprocess.check_output(cmd).strip()
|
||||
|
||||
|
||||
def symlink(source, destination):
|
||||
"""Create a symbolic link"""
|
||||
log("Symlinking {} as {}".format(source, destination))
|
||||
cmd = [
|
||||
'ln',
|
||||
'-sf',
|
||||
source,
|
||||
destination,
|
||||
]
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
|
||||
def mkdir(path, owner='root', group='root', perms=0555, force=False):
|
||||
"""Create a directory"""
|
||||
log("Making dir {} {}:{} {:o}".format(path, owner, group,
|
||||
perms))
|
||||
uid = pwd.getpwnam(owner).pw_uid
|
||||
gid = grp.getgrnam(group).gr_gid
|
||||
realpath = os.path.abspath(path)
|
||||
if os.path.exists(realpath):
|
||||
if force and not os.path.isdir(realpath):
|
||||
log("Removing non-directory file {} prior to mkdir()".format(path))
|
||||
os.unlink(realpath)
|
||||
else:
|
||||
os.makedirs(realpath, perms)
|
||||
os.chown(realpath, uid, gid)
|
||||
|
||||
|
||||
def write_file(path, content, owner='root', group='root', perms=0444):
|
||||
"""Create or overwrite a file with the contents of a string"""
|
||||
log("Writing file {} {}:{} {:o}".format(path, owner, group, perms))
|
||||
uid = pwd.getpwnam(owner).pw_uid
|
||||
gid = grp.getgrnam(group).gr_gid
|
||||
with open(path, 'w') as target:
|
||||
os.fchown(target.fileno(), uid, gid)
|
||||
os.fchmod(target.fileno(), perms)
|
||||
target.write(content)
|
||||
|
||||
|
||||
def mount(device, mountpoint, options=None, persist=False):
|
||||
'''Mount a filesystem'''
|
||||
cmd_args = ['mount']
|
||||
if options is not None:
|
||||
cmd_args.extend(['-o', options])
|
||||
cmd_args.extend([device, mountpoint])
|
||||
try:
|
||||
subprocess.check_output(cmd_args)
|
||||
except subprocess.CalledProcessError, e:
|
||||
log('Error mounting {} at {}\n{}'.format(device, mountpoint, e.output))
|
||||
return False
|
||||
if persist:
|
||||
# TODO: update fstab
|
||||
pass
|
||||
return True
|
||||
|
||||
|
||||
def umount(mountpoint, persist=False):
|
||||
'''Unmount a filesystem'''
|
||||
cmd_args = ['umount', mountpoint]
|
||||
try:
|
||||
subprocess.check_output(cmd_args)
|
||||
except subprocess.CalledProcessError, e:
|
||||
log('Error unmounting {}\n{}'.format(mountpoint, e.output))
|
||||
return False
|
||||
if persist:
|
||||
# TODO: update fstab
|
||||
pass
|
||||
return True
|
||||
|
||||
|
||||
def mounts():
|
||||
'''List of all mounted volumes as [[mountpoint,device],[...]]'''
|
||||
with open('/proc/mounts') as f:
|
||||
# [['/mount/point','/dev/path'],[...]]
|
||||
system_mounts = [m[1::-1] for m in [l.strip().split()
|
||||
for l in f.readlines()]]
|
||||
return system_mounts
|
||||
|
||||
|
||||
def file_hash(path):
|
||||
''' Generate a md5 hash of the contents of 'path' or None if not found '''
|
||||
if os.path.exists(path):
|
||||
h = hashlib.md5()
|
||||
with open(path, 'r') as source:
|
||||
h.update(source.read()) # IGNORE:E1101 - it does have update
|
||||
return h.hexdigest()
|
||||
else:
|
||||
return None
|
||||
|
||||
|
||||
def restart_on_change(restart_map):
|
||||
''' Restart services based on configuration files changing
|
||||
|
||||
This function is used a decorator, for example
|
||||
|
||||
@restart_on_change({
|
||||
'/etc/ceph/ceph.conf': [ 'cinder-api', 'cinder-volume' ]
|
||||
})
|
||||
def ceph_client_changed():
|
||||
...
|
||||
|
||||
In this example, the cinder-api and cinder-volume services
|
||||
would be restarted if /etc/ceph/ceph.conf is changed by the
|
||||
ceph_client_changed function.
|
||||
'''
|
||||
def wrap(f):
|
||||
def wrapped_f(*args):
|
||||
checksums = {}
|
||||
for path in restart_map:
|
||||
checksums[path] = file_hash(path)
|
||||
f(*args)
|
||||
restarts = []
|
||||
for path in restart_map:
|
||||
if checksums[path] != file_hash(path):
|
||||
restarts += restart_map[path]
|
||||
for service_name in list(OrderedDict.fromkeys(restarts)):
|
||||
service('restart', service_name)
|
||||
return wrapped_f
|
||||
return wrap
|
||||
|
||||
|
||||
def lsb_release():
|
||||
'''Return /etc/lsb-release in a dict'''
|
||||
d = {}
|
||||
with open('/etc/lsb-release', 'r') as lsb:
|
||||
for l in lsb:
|
||||
k, v = l.split('=')
|
||||
d[k.strip()] = v.strip()
|
||||
return d
|
||||
|
||||
|
||||
def pwgen(length=None):
|
||||
'''Generate a random pasword.'''
|
||||
if length is None:
|
||||
length = random.choice(range(35, 45))
|
||||
alphanumeric_chars = [
|
||||
l for l in (string.letters + string.digits)
|
||||
if l not in 'l0QD1vAEIOUaeiou']
|
||||
random_chars = [
|
||||
random.choice(alphanumeric_chars) for _ in range(length)]
|
||||
return(''.join(random_chars))
|
||||
|
|
@ -0,0 +1,209 @@
|
|||
import importlib
|
||||
from yaml import safe_load
|
||||
from charmhelpers.core.host import (
|
||||
lsb_release
|
||||
)
|
||||
from urlparse import (
|
||||
urlparse,
|
||||
urlunparse,
|
||||
)
|
||||
import subprocess
|
||||
from charmhelpers.core.hookenv import (
|
||||
config,
|
||||
log,
|
||||
)
|
||||
import apt_pkg
|
||||
|
||||
CLOUD_ARCHIVE = """# Ubuntu Cloud Archive
|
||||
deb http://ubuntu-cloud.archive.canonical.com/ubuntu {} main
|
||||
"""
|
||||
PROPOSED_POCKET = """# Proposed
|
||||
deb http://archive.ubuntu.com/ubuntu {}-proposed main universe multiverse restricted
|
||||
"""
|
||||
|
||||
|
||||
def filter_installed_packages(packages):
|
||||
"""Returns a list of packages that require installation"""
|
||||
apt_pkg.init()
|
||||
cache = apt_pkg.Cache()
|
||||
_pkgs = []
|
||||
for package in packages:
|
||||
try:
|
||||
p = cache[package]
|
||||
p.current_ver or _pkgs.append(package)
|
||||
except KeyError:
|
||||
log('Package {} has no installation candidate.'.format(package),
|
||||
level='WARNING')
|
||||
_pkgs.append(package)
|
||||
return _pkgs
|
||||
|
||||
|
||||
def apt_install(packages, options=None, fatal=False):
|
||||
"""Install one or more packages"""
|
||||
options = options or []
|
||||
cmd = ['apt-get', '-y']
|
||||
cmd.extend(options)
|
||||
cmd.append('install')
|
||||
if isinstance(packages, basestring):
|
||||
cmd.append(packages)
|
||||
else:
|
||||
cmd.extend(packages)
|
||||
log("Installing {} with options: {}".format(packages,
|
||||
options))
|
||||
if fatal:
|
||||
subprocess.check_call(cmd)
|
||||
else:
|
||||
subprocess.call(cmd)
|
||||
|
||||
|
||||
def apt_update(fatal=False):
|
||||
"""Update local apt cache"""
|
||||
cmd = ['apt-get', 'update']
|
||||
if fatal:
|
||||
subprocess.check_call(cmd)
|
||||
else:
|
||||
subprocess.call(cmd)
|
||||
|
||||
|
||||
def apt_purge(packages, fatal=False):
|
||||
"""Purge one or more packages"""
|
||||
cmd = ['apt-get', '-y', 'purge']
|
||||
if isinstance(packages, basestring):
|
||||
cmd.append(packages)
|
||||
else:
|
||||
cmd.extend(packages)
|
||||
log("Purging {}".format(packages))
|
||||
if fatal:
|
||||
subprocess.check_call(cmd)
|
||||
else:
|
||||
subprocess.call(cmd)
|
||||
|
||||
|
||||
def add_source(source, key=None):
|
||||
if ((source.startswith('ppa:') or
|
||||
source.startswith('http:'))):
|
||||
subprocess.check_call(['add-apt-repository', '--yes', source])
|
||||
elif source.startswith('cloud:'):
|
||||
apt_install(filter_installed_packages(['ubuntu-cloud-keyring']),
|
||||
fatal=True)
|
||||
pocket = source.split(':')[-1]
|
||||
with open('/etc/apt/sources.list.d/cloud-archive.list', 'w') as apt:
|
||||
apt.write(CLOUD_ARCHIVE.format(pocket))
|
||||
elif source == 'proposed':
|
||||
release = lsb_release()['DISTRIB_CODENAME']
|
||||
with open('/etc/apt/sources.list.d/proposed.list', 'w') as apt:
|
||||
apt.write(PROPOSED_POCKET.format(release))
|
||||
if key:
|
||||
subprocess.check_call(['apt-key', 'import', key])
|
||||
|
||||
|
||||
class SourceConfigError(Exception):
|
||||
pass
|
||||
|
||||
|
||||
def configure_sources(update=False,
|
||||
sources_var='install_sources',
|
||||
keys_var='install_keys'):
|
||||
"""
|
||||
Configure multiple sources from charm configuration
|
||||
|
||||
Example config:
|
||||
install_sources:
|
||||
- "ppa:foo"
|
||||
- "http://example.com/repo precise main"
|
||||
install_keys:
|
||||
- null
|
||||
- "a1b2c3d4"
|
||||
|
||||
Note that 'null' (a.k.a. None) should not be quoted.
|
||||
"""
|
||||
sources = safe_load(config(sources_var))
|
||||
keys = safe_load(config(keys_var))
|
||||
if isinstance(sources, basestring) and isinstance(keys, basestring):
|
||||
add_source(sources, keys)
|
||||
else:
|
||||
if not len(sources) == len(keys):
|
||||
msg = 'Install sources and keys lists are different lengths'
|
||||
raise SourceConfigError(msg)
|
||||
for src_num in range(len(sources)):
|
||||
add_source(sources[src_num], keys[src_num])
|
||||
if update:
|
||||
apt_update(fatal=True)
|
||||
|
||||
# The order of this list is very important. Handlers should be listed in from
|
||||
# least- to most-specific URL matching.
|
||||
FETCH_HANDLERS = (
|
||||
'charmhelpers.fetch.archiveurl.ArchiveUrlFetchHandler',
|
||||
'charmhelpers.fetch.bzrurl.BzrUrlFetchHandler',
|
||||
)
|
||||
|
||||
|
||||
class UnhandledSource(Exception):
|
||||
pass
|
||||
|
||||
|
||||
def install_remote(source):
|
||||
"""
|
||||
Install a file tree from a remote source
|
||||
|
||||
The specified source should be a url of the form:
|
||||
scheme://[host]/path[#[option=value][&...]]
|
||||
|
||||
Schemes supported are based on this modules submodules
|
||||
Options supported are submodule-specific"""
|
||||
# We ONLY check for True here because can_handle may return a string
|
||||
# explaining why it can't handle a given source.
|
||||
handlers = [h for h in plugins() if h.can_handle(source) is True]
|
||||
installed_to = None
|
||||
for handler in handlers:
|
||||
try:
|
||||
installed_to = handler.install(source)
|
||||
except UnhandledSource:
|
||||
pass
|
||||
if not installed_to:
|
||||
raise UnhandledSource("No handler found for source {}".format(source))
|
||||
return installed_to
|
||||
|
||||
|
||||
def install_from_config(config_var_name):
|
||||
charm_config = config()
|
||||
source = charm_config[config_var_name]
|
||||
return install_remote(source)
|
||||
|
||||
|
||||
class BaseFetchHandler(object):
|
||||
"""Base class for FetchHandler implementations in fetch plugins"""
|
||||
def can_handle(self, source):
|
||||
"""Returns True if the source can be handled. Otherwise returns
|
||||
a string explaining why it cannot"""
|
||||
return "Wrong source type"
|
||||
|
||||
def install(self, source):
|
||||
"""Try to download and unpack the source. Return the path to the
|
||||
unpacked files or raise UnhandledSource."""
|
||||
raise UnhandledSource("Wrong source type {}".format(source))
|
||||
|
||||
def parse_url(self, url):
|
||||
return urlparse(url)
|
||||
|
||||
def base_url(self, url):
|
||||
"""Return url without querystring or fragment"""
|
||||
parts = list(self.parse_url(url))
|
||||
parts[4:] = ['' for i in parts[4:]]
|
||||
return urlunparse(parts)
|
||||
|
||||
|
||||
def plugins(fetch_handlers=None):
|
||||
if not fetch_handlers:
|
||||
fetch_handlers = FETCH_HANDLERS
|
||||
plugin_list = []
|
||||
for handler_name in fetch_handlers:
|
||||
package, classname = handler_name.rsplit('.', 1)
|
||||
try:
|
||||
handler_class = getattr(importlib.import_module(package), classname)
|
||||
plugin_list.append(handler_class())
|
||||
except (ImportError, AttributeError):
|
||||
# Skip missing plugins so that they can be ommitted from
|
||||
# installation if desired
|
||||
log("FetchHandler {} not found, skipping plugin".format(handler_name))
|
||||
return plugin_list
|
||||
|
|
@ -0,0 +1,48 @@
|
|||
import os
|
||||
import urllib2
|
||||
from charmhelpers.fetch import (
|
||||
BaseFetchHandler,
|
||||
UnhandledSource
|
||||
)
|
||||
from charmhelpers.payload.archive import (
|
||||
get_archive_handler,
|
||||
extract,
|
||||
)
|
||||
from charmhelpers.core.host import mkdir
|
||||
|
||||
|
||||
class ArchiveUrlFetchHandler(BaseFetchHandler):
|
||||
"""Handler for archives via generic URLs"""
|
||||
def can_handle(self, source):
|
||||
url_parts = self.parse_url(source)
|
||||
if url_parts.scheme not in ('http', 'https', 'ftp', 'file'):
|
||||
return "Wrong source type"
|
||||
if get_archive_handler(self.base_url(source)):
|
||||
return True
|
||||
return False
|
||||
|
||||
def download(self, source, dest):
|
||||
# propogate all exceptions
|
||||
# URLError, OSError, etc
|
||||
response = urllib2.urlopen(source)
|
||||
try:
|
||||
with open(dest, 'w') as dest_file:
|
||||
dest_file.write(response.read())
|
||||
except Exception as e:
|
||||
if os.path.isfile(dest):
|
||||
os.unlink(dest)
|
||||
raise e
|
||||
|
||||
def install(self, source):
|
||||
url_parts = self.parse_url(source)
|
||||
dest_dir = os.path.join(os.environ.get('CHARM_DIR'), 'fetched')
|
||||
if not os.path.exists(dest_dir):
|
||||
mkdir(dest_dir, perms=0755)
|
||||
dld_file = os.path.join(dest_dir, os.path.basename(url_parts.path))
|
||||
try:
|
||||
self.download(source, dld_file)
|
||||
except urllib2.URLError as e:
|
||||
raise UnhandledSource(e.reason)
|
||||
except OSError as e:
|
||||
raise UnhandledSource(e.strerror)
|
||||
return extract(dld_file)
|
||||
|
|
@ -0,0 +1,49 @@
|
|||
import os
|
||||
from charmhelpers.fetch import (
|
||||
BaseFetchHandler,
|
||||
UnhandledSource
|
||||
)
|
||||
from charmhelpers.core.host import mkdir
|
||||
|
||||
try:
|
||||
from bzrlib.branch import Branch
|
||||
except ImportError:
|
||||
from charmhelpers.fetch import apt_install
|
||||
apt_install("python-bzrlib")
|
||||
from bzrlib.branch import Branch
|
||||
|
||||
class BzrUrlFetchHandler(BaseFetchHandler):
|
||||
"""Handler for bazaar branches via generic and lp URLs"""
|
||||
def can_handle(self, source):
|
||||
url_parts = self.parse_url(source)
|
||||
if url_parts.scheme not in ('bzr+ssh', 'lp'):
|
||||
return False
|
||||
else:
|
||||
return True
|
||||
|
||||
def branch(self, source, dest):
|
||||
url_parts = self.parse_url(source)
|
||||
# If we use lp:branchname scheme we need to load plugins
|
||||
if not self.can_handle(source):
|
||||
raise UnhandledSource("Cannot handle {}".format(source))
|
||||
if url_parts.scheme == "lp":
|
||||
from bzrlib.plugin import load_plugins
|
||||
load_plugins()
|
||||
try:
|
||||
remote_branch = Branch.open(source)
|
||||
remote_branch.bzrdir.sprout(dest).open_branch()
|
||||
except Exception as e:
|
||||
raise e
|
||||
|
||||
def install(self, source):
|
||||
url_parts = self.parse_url(source)
|
||||
branch_name = url_parts.path.strip("/").split("/")[-1]
|
||||
dest_dir = os.path.join(os.environ.get('CHARM_DIR'), "fetched", branch_name)
|
||||
if not os.path.exists(dest_dir):
|
||||
mkdir(dest_dir, perms=0755)
|
||||
try:
|
||||
self.branch(source, dest_dir)
|
||||
except OSError as e:
|
||||
raise UnhandledSource(e.strerror)
|
||||
return dest_dir
|
||||
|
||||
|
|
@ -1,69 +0,0 @@
|
|||
#!/usr/bin/python
|
||||
|
||||
import sys
|
||||
import time
|
||||
import os
|
||||
import utils
|
||||
import ceilometer_utils
|
||||
|
||||
|
||||
def install():
|
||||
utils.configure_source()
|
||||
utils.install(*ceilometer_utils.CEILOMETER_AGENT_PACKAGES)
|
||||
ceilometer_utils.modify_config_file(ceilometer_utils.NOVA_CONF,
|
||||
ceilometer_utils.NOVA_SETTINGS)
|
||||
|
||||
port = ceilometer_utils.CEILOMETER_PORT
|
||||
utils.expose(port)
|
||||
|
||||
|
||||
def get_conf():
|
||||
for relid in utils.relation_ids('ceilometer-service'):
|
||||
for unit in utils.relation_list(relid):
|
||||
conf = {
|
||||
"rabbit_host": utils.relation_get('rabbit_host', unit, relid),
|
||||
"rabbit_virtual_host": ceilometer_utils.RABBIT_VHOST,
|
||||
"rabbit_userid": ceilometer_utils.RABBIT_USER,
|
||||
"rabbit_password": utils.relation_get('rabbit_password', unit, relid),
|
||||
"keystone_os_username": utils.relation_get('keystone_os_username', unit, relid),
|
||||
"keystone_os_password": utils.relation_get('keystone_os_password', unit, relid),
|
||||
"keystone_os_tenant": utils.relation_get('keystone_os_tenant', unit, relid),
|
||||
"keystone_host": utils.relation_get('keystone_host', unit, relid),
|
||||
"keystone_port": utils.relation_get('keystone_port', unit, relid),
|
||||
"metering_secret": utils.relation_get('metering_secret', unit, relid)
|
||||
}
|
||||
if None not in conf.itervalues():
|
||||
return conf
|
||||
return None
|
||||
|
||||
def render_ceilometer_conf(context):
|
||||
if (context and os.path.exists(ceilometer_utils.CEILOMETER_CONF)):
|
||||
# merge contexts
|
||||
context['service_port'] = ceilometer_utils.CEILOMETER_PORT
|
||||
context['ceilometer_host'] = utils.get_unit_hostname()
|
||||
|
||||
with open(ceilometer_utils.CEILOMETER_CONF, "w") as conf:
|
||||
conf.write(utils.render_template(
|
||||
os.path.basename(ceilometer_utils.CEILOMETER_CONF), context))
|
||||
|
||||
utils.restart(*ceilometer_utils.CEILOMETER_COMPUTE_SERVICES)
|
||||
return True
|
||||
return False
|
||||
|
||||
|
||||
def ceilometer_changed():
|
||||
# check if we have rabbit and keystone already set
|
||||
context = get_conf()
|
||||
if context:
|
||||
render_ceilometer_conf(context)
|
||||
else:
|
||||
# still waiting
|
||||
utils.juju_log("INFO", "ceilometer: rabbit and keystone " +
|
||||
"credentials not yet received from peer.")
|
||||
|
||||
|
||||
utils.do_hooks({
|
||||
"install": install,
|
||||
"ceilometer-service-relation-changed": ceilometer_changed
|
||||
})
|
||||
sys.exit(0)
|
||||
|
|
@ -1 +1 @@
|
|||
hooks.py
|
||||
ceilometer_hooks.py
|
||||
|
|
@ -1 +0,0 @@
|
|||
|
||||
|
|
@ -1,194 +0,0 @@
|
|||
#!/usr/bin/python
|
||||
|
||||
# Common python helper functions used for OpenStack charms.
|
||||
|
||||
import subprocess
|
||||
|
||||
CLOUD_ARCHIVE_URL = "http://ubuntu-cloud.archive.canonical.com/ubuntu"
|
||||
CLOUD_ARCHIVE_KEY_ID = '5EDB1B62EC4926EA'
|
||||
|
||||
ubuntu_openstack_release = {
|
||||
'oneiric': 'diablo',
|
||||
'precise': 'essex',
|
||||
'quantal': 'folsom',
|
||||
'raring': 'grizzly'
|
||||
}
|
||||
|
||||
|
||||
openstack_codenames = {
|
||||
'2011.2': 'diablo',
|
||||
'2012.1': 'essex',
|
||||
'2012.2': 'folsom',
|
||||
'2012.3': 'grizzly'
|
||||
}
|
||||
|
||||
|
||||
def juju_log(msg):
|
||||
subprocess.check_call(['juju-log', msg])
|
||||
|
||||
|
||||
def error_out(msg):
|
||||
juju_log("FATAL ERROR: %s" % msg)
|
||||
exit(1)
|
||||
|
||||
|
||||
def lsb_release():
|
||||
'''Return /etc/lsb-release in a dict'''
|
||||
lsb = open('/etc/lsb-release', 'r')
|
||||
d = {}
|
||||
for l in lsb:
|
||||
k, v = l.split('=')
|
||||
d[k.strip()] = v.strip()
|
||||
return d
|
||||
|
||||
|
||||
def get_os_codename_install_source(src):
|
||||
'''Derive OpenStack release codename from a given installation source.'''
|
||||
ubuntu_rel = lsb_release()['DISTRIB_CODENAME']
|
||||
|
||||
rel = ''
|
||||
if src == 'distro':
|
||||
try:
|
||||
rel = ubuntu_openstack_release[ubuntu_rel]
|
||||
except KeyError:
|
||||
e = 'Code not derive openstack release for '\
|
||||
'this Ubuntu release: %s' % rel
|
||||
error_out(e)
|
||||
return rel
|
||||
|
||||
if src.startswith('cloud:'):
|
||||
ca_rel = src.split(':')[1]
|
||||
ca_rel = ca_rel.split('%s-' % ubuntu_rel)[1].split('/')[0]
|
||||
return ca_rel
|
||||
|
||||
# Best guess match based on deb string provided
|
||||
if src.startswith('deb'):
|
||||
for k, v in openstack_codenames.iteritems():
|
||||
if v in src:
|
||||
return v
|
||||
|
||||
|
||||
def get_os_codename_version(vers):
|
||||
'''Determine OpenStack codename from version number.'''
|
||||
try:
|
||||
return openstack_codenames[vers]
|
||||
except KeyError:
|
||||
e = 'Could not determine OpenStack codename for version %s' % vers
|
||||
error_out(e)
|
||||
|
||||
|
||||
def get_os_version_codename(codename):
|
||||
'''Determine OpenStack version number from codename.'''
|
||||
for k, v in openstack_codenames.iteritems():
|
||||
if v == codename:
|
||||
return k
|
||||
e = 'Code not derive OpenStack version for '\
|
||||
'codename: %s' % codename
|
||||
error_out(e)
|
||||
|
||||
|
||||
def get_os_codename_package(pkg):
|
||||
'''Derive OpenStack release codename from an installed package.'''
|
||||
cmd = ['dpkg', '-l', pkg]
|
||||
|
||||
try:
|
||||
output = subprocess.check_output(cmd)
|
||||
except subprocess.CalledProcessError:
|
||||
e = 'Could not derive OpenStack version from package that is not '\
|
||||
'installed; %s' % pkg
|
||||
error_out(e)
|
||||
|
||||
def _clean(line):
|
||||
line = line.split(' ')
|
||||
clean = []
|
||||
for c in line:
|
||||
if c != '':
|
||||
clean.append(c)
|
||||
return clean
|
||||
|
||||
vers = None
|
||||
for l in output.split('\n'):
|
||||
if l.startswith('ii'):
|
||||
l = _clean(l)
|
||||
if l[1] == pkg:
|
||||
vers = l[2]
|
||||
|
||||
if not vers:
|
||||
e = 'Could not determine version of installed package: %s' % pkg
|
||||
error_out(e)
|
||||
|
||||
vers = vers[:6]
|
||||
try:
|
||||
return openstack_codenames[vers]
|
||||
except KeyError:
|
||||
e = 'Could not determine OpenStack codename for version %s' % vers
|
||||
error_out(e)
|
||||
|
||||
|
||||
def configure_installation_source(rel):
|
||||
'''Configure apt installation source.'''
|
||||
|
||||
def _import_key(id):
|
||||
cmd = "apt-key adv --keyserver keyserver.ubuntu.com " \
|
||||
"--recv-keys %s" % id
|
||||
try:
|
||||
subprocess.check_call(cmd.split(' '))
|
||||
except:
|
||||
error_out("Error importing repo key %s" % id)
|
||||
|
||||
if rel == 'distro':
|
||||
return
|
||||
elif rel[:4] == "ppa:":
|
||||
src = rel
|
||||
subprocess.check_call(["add-apt-repository", "-y", src])
|
||||
elif rel[:3] == "deb":
|
||||
l = len(rel.split('|'))
|
||||
if l == 2:
|
||||
src, key = rel.split('|')
|
||||
juju_log("Importing PPA key from keyserver for %s" % src)
|
||||
_import_key(key)
|
||||
elif l == 1:
|
||||
src = rel
|
||||
else:
|
||||
error_out("Invalid openstack-release: %s" % rel)
|
||||
|
||||
with open('/etc/apt/sources.list.d/juju_deb.list', 'w') as f:
|
||||
f.write(src)
|
||||
elif rel[:6] == 'cloud:':
|
||||
ubuntu_rel = lsb_release()['DISTRIB_CODENAME']
|
||||
rel = rel.split(':')[1]
|
||||
u_rel = rel.split('-')[0]
|
||||
ca_rel = rel.split('-')[1]
|
||||
|
||||
if u_rel != ubuntu_rel:
|
||||
e = 'Cannot install from Cloud Archive pocket %s on this Ubuntu '\
|
||||
'version (%s)' % (ca_rel, ubuntu_rel)
|
||||
error_out(e)
|
||||
|
||||
if ca_rel == 'folsom/staging':
|
||||
# staging is just a regular PPA.
|
||||
cmd = 'add-apt-repository -y '\
|
||||
'ppa:ubuntu-cloud-archive/folsom-staging'
|
||||
subprocess.check_call(cmd.split(' '))
|
||||
return
|
||||
|
||||
# map charm config options to actual archive pockets.
|
||||
pockets = {
|
||||
'folsom': 'precise-updates/folsom',
|
||||
'folsom/updates': 'precise-updates/folsom',
|
||||
'folsom/proposed': 'precise-proposed/folsom'
|
||||
}
|
||||
|
||||
try:
|
||||
pocket = pockets[ca_rel]
|
||||
except KeyError:
|
||||
e = 'Invalid Cloud Archive release specified: %s' % rel
|
||||
error_out(e)
|
||||
|
||||
src = "deb %s %s main" % (CLOUD_ARCHIVE_URL, pocket)
|
||||
_import_key(CLOUD_ARCHIVE_KEY_ID)
|
||||
|
||||
with open('/etc/apt/sources.list.d/cloud-archive.list', 'w') as f:
|
||||
f.write(src)
|
||||
else:
|
||||
error_out("Invalid openstack-release specified: %s" % rel)
|
||||
239
hooks/utils.py
239
hooks/utils.py
|
|
@ -1,239 +0,0 @@
|
|||
#
|
||||
# Copyright 2012 Canonical Ltd.
|
||||
#
|
||||
# Authors:
|
||||
# James Page <james.page@ubuntu.com>
|
||||
# Paul Collins <paul.collins@canonical.com>
|
||||
#
|
||||
|
||||
import os
|
||||
import subprocess
|
||||
import socket
|
||||
import sys
|
||||
import apt_pkg as apt
|
||||
import re
|
||||
import ceilometer_utils
|
||||
|
||||
|
||||
def do_hooks(hooks):
|
||||
hook = os.path.basename(sys.argv[0])
|
||||
|
||||
try:
|
||||
hook_func = hooks[hook]
|
||||
except KeyError:
|
||||
juju_log('INFO',
|
||||
"This charm doesn't know how to handle '{}'.".format(hook))
|
||||
else:
|
||||
hook_func()
|
||||
|
||||
|
||||
def install(*pkgs):
|
||||
cmd = [
|
||||
'apt-get',
|
||||
'-y',
|
||||
'install'
|
||||
]
|
||||
for pkg in pkgs:
|
||||
cmd.append(pkg)
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
TEMPLATES_DIR = 'templates'
|
||||
|
||||
try:
|
||||
import jinja2
|
||||
except ImportError:
|
||||
install('python-jinja2')
|
||||
import jinja2
|
||||
|
||||
|
||||
def render_template(template_name, context, template_dir=TEMPLATES_DIR):
|
||||
templates = jinja2.Environment(
|
||||
loader=jinja2.FileSystemLoader(template_dir)
|
||||
)
|
||||
template = templates.get_template(template_name)
|
||||
return template.render(context)
|
||||
|
||||
CLOUD_ARCHIVE = \
|
||||
""" # Ubuntu Cloud Archive
|
||||
deb http://ubuntu-cloud.archive.canonical.com/ubuntu {} main
|
||||
"""
|
||||
|
||||
CLOUD_ARCHIVE_POCKETS = {
|
||||
'precise-folsom': 'precise-updates/folsom',
|
||||
'precise-folsom/updates': 'precise-updates/folsom',
|
||||
'precise-folsom/proposed': 'precise-proposed/folsom',
|
||||
'precise-grizzly': 'precise-updates/grizzly',
|
||||
'precise-grizzly/updates': 'precise-updates/grizzly',
|
||||
'precise-grizzly/proposed': 'precise-proposed/grizzly'
|
||||
}
|
||||
|
||||
|
||||
def configure_source():
|
||||
source = str(config_get('openstack-origin'))
|
||||
if not source:
|
||||
return
|
||||
if source.startswith('ppa:'):
|
||||
cmd = [
|
||||
'add-apt-repository',
|
||||
source
|
||||
]
|
||||
subprocess.check_call(cmd)
|
||||
if source.startswith('cloud:'):
|
||||
install('ubuntu-cloud-keyring')
|
||||
pocket = source.split(':')[1]
|
||||
with open('/etc/apt/sources.list.d/cloud-archive.list', 'w') as apt:
|
||||
apt.write(CLOUD_ARCHIVE.format(CLOUD_ARCHIVE_POCKETS[pocket]))
|
||||
if source.startswith('deb'):
|
||||
l = len(source.split('|'))
|
||||
if l == 2:
|
||||
(apt_line, key) = source.split('|')
|
||||
cmd = [
|
||||
'apt-key',
|
||||
'adv', '--keyserver keyserver.ubuntu.com',
|
||||
'--recv-keys', key
|
||||
]
|
||||
subprocess.check_call(cmd)
|
||||
elif l == 1:
|
||||
apt_line = source
|
||||
|
||||
with open('/etc/apt/sources.list.d/ceilometer.list', 'w') as apt:
|
||||
apt.write(apt_line + "\n")
|
||||
cmd = [
|
||||
'apt-get',
|
||||
'update'
|
||||
]
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
# Protocols
|
||||
TCP = 'TCP'
|
||||
UDP = 'UDP'
|
||||
|
||||
|
||||
def expose(port, protocol='TCP'):
|
||||
cmd = [
|
||||
'open-port',
|
||||
'{}/{}'.format(port, protocol)
|
||||
]
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
|
||||
def unexpose(port, protocol='TCP'):
|
||||
cmd = [
|
||||
'close-port',
|
||||
'{}/{}'.format(port, protocol)
|
||||
]
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
|
||||
def juju_log(severity, message):
|
||||
cmd = [
|
||||
'juju-log',
|
||||
'--log-level', severity,
|
||||
message
|
||||
]
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
|
||||
def relation_ids(relation):
|
||||
cmd = [
|
||||
'relation-ids',
|
||||
relation
|
||||
]
|
||||
return subprocess.check_output(cmd).split() # IGNORE:E1103
|
||||
|
||||
|
||||
def relation_list(rid):
|
||||
cmd = [
|
||||
'relation-list',
|
||||
'-r', rid,
|
||||
]
|
||||
return subprocess.check_output(cmd).split() # IGNORE:E1103
|
||||
|
||||
|
||||
def relation_get(attribute, unit=None, rid=None):
|
||||
cmd = [
|
||||
'relation-get',
|
||||
]
|
||||
if rid:
|
||||
cmd.append('-r')
|
||||
cmd.append(rid)
|
||||
cmd.append(attribute)
|
||||
if unit:
|
||||
cmd.append(unit)
|
||||
value = subprocess.check_output(cmd).strip() # IGNORE:E1103
|
||||
if value == "":
|
||||
return None
|
||||
else:
|
||||
return value
|
||||
|
||||
|
||||
def relation_set(**kwargs):
|
||||
cmd = [
|
||||
'relation-set'
|
||||
]
|
||||
args = []
|
||||
for k, v in kwargs.items():
|
||||
if k == 'rid':
|
||||
cmd.append('-r')
|
||||
cmd.append(v)
|
||||
else:
|
||||
args.append('{}={}'.format(k, v))
|
||||
cmd += args
|
||||
subprocess.check_call(cmd)
|
||||
|
||||
|
||||
def unit_get(attribute):
|
||||
cmd = [
|
||||
'unit-get',
|
||||
attribute
|
||||
]
|
||||
value = subprocess.check_output(cmd).strip() # IGNORE:E1103
|
||||
if value == "":
|
||||
return None
|
||||
else:
|
||||
return value
|
||||
|
||||
|
||||
def config_get(attribute):
|
||||
cmd = [
|
||||
'config-get',
|
||||
attribute
|
||||
]
|
||||
value = subprocess.check_output(cmd).strip() # IGNORE:E1103
|
||||
if value == "":
|
||||
return None
|
||||
else:
|
||||
return value
|
||||
|
||||
|
||||
def get_unit_hostname():
|
||||
return socket.gethostname()
|
||||
|
||||
|
||||
def _service_ctl(service, action):
|
||||
subprocess.check_call(['service', service, action])
|
||||
|
||||
|
||||
def restart(*services):
|
||||
for service in services:
|
||||
_service_ctl(service, 'restart')
|
||||
|
||||
|
||||
def stop(*services):
|
||||
for service in services:
|
||||
_service_ctl(service, 'stop')
|
||||
|
||||
|
||||
def start(*services):
|
||||
for service in services:
|
||||
_service_ctl(service, 'start')
|
||||
|
||||
|
||||
def get_os_version(package=None):
|
||||
apt.init()
|
||||
cache = apt.Cache()
|
||||
pkg = cache[package or 'quantum-common']
|
||||
if pkg.current_ver:
|
||||
return apt.upstream_version(pkg.current_ver.ver_str)
|
||||
else:
|
||||
return None
|
||||
|
|
@ -0,0 +1,769 @@
|
|||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
<feOffset
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
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||||
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|
||||
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|
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|
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|
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Reference in New Issue