fuel-ccp-tests/fuel_ccp_tests/managers/underlay_ssh_manager.py

364 lines
13 KiB
Python

# Copyright 2016 Mirantis, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import random
from devops.helpers import helpers
from devops.helpers import ssh_client
from paramiko import rsakey
from fuel_ccp_tests import logger
from fuel_ccp_tests.helpers import utils
LOG = logger.logger
class UnderlaySSHManager(object):
"""Keep the list of SSH access credentials to Underlay nodes.
This object is initialized using config.underlay.ssh.
:param config_ssh: JSONList of SSH access credentials for nodes:
[
{
node_name: node1,
address_pool: 'public-pool01',
host: ,
port: ,
keys: [],
keys_source_host: None,
login: ,
password: ,
},
{
node_name: node1,
address_pool: 'private-pool01',
host:
port:
keys: []
keys_source_host: None,
login:
password:
},
{
node_name: node2,
address_pool: 'public-pool01',
keys_source_host: node1
...
}
,
...
]
self.node_names(): list of node names registered in underlay.
self.remote(): SSHClient object by a node name (w/wo address pool)
or by a hostname.
"""
config_ssh = None
config_lvm = None
def __init__(self, config_ssh):
"""Read config.underlay.ssh object
:param config_ssh: dict
"""
if self.config_ssh is None:
self.config_ssh = []
if self.config_lvm is None:
self.config_lvm = {}
self.add_config_ssh(config_ssh)
def add_config_ssh(self, config_ssh):
if config_ssh is None:
config_ssh = []
for ssh in config_ssh:
ssh_data = {
# Required keys:
'node_name': ssh['node_name'],
'host': ssh['host'],
'login': ssh['login'],
'password': ssh['password'],
# Optional keys:
'address_pool': ssh.get('address_pool', None),
'port': ssh.get('port', None),
'keys': ssh.get('keys', []),
}
if 'keys_source_host' in ssh:
node_name = ssh['keys_source_host']
remote = self.remote(node_name)
keys = self.__get_keys(remote)
ssh_data['keys'].extend(keys)
self.config_ssh.append(ssh_data)
def remove_config_ssh(self, config_ssh):
if config_ssh is None:
config_ssh = []
for ssh in config_ssh:
ssh_data = {
# Required keys:
'node_name': ssh['node_name'],
'host': ssh['host'],
'login': ssh['login'],
'password': ssh['password'],
# Optional keys:
'address_pool': ssh.get('address_pool', None),
'port': ssh.get('port', None),
'keys': ssh.get('keys', []),
}
self.config_ssh.remove(ssh_data)
def __get_keys(self, remote):
keys = []
remote.execute('cd ~')
key_string = './.ssh/id_rsa'
if remote.exists(key_string):
with remote.open(key_string) as f:
keys.append(rsakey.RSAKey.from_private_key(f))
return keys
def __ssh_data(self, node_name=None, host=None, address_pool=None):
ssh_data = None
if host is not None:
for ssh in self.config_ssh:
if host == ssh['host']:
ssh_data = ssh
break
elif node_name is not None:
for ssh in self.config_ssh:
if node_name == ssh['node_name']:
if address_pool is not None:
if address_pool == ssh['address_pool']:
ssh_data = ssh
break
else:
ssh_data = ssh
if ssh_data is None:
raise Exception('Auth data for node was not found using '
'node_name="{}" , host="{}" , address_pool="{}"'
.format(node_name, host, address_pool))
return ssh_data
def node_names(self):
"""Get list of node names registered in config.underlay.ssh"""
names = [] # List is used to keep the original order of names
for ssh in self.config_ssh:
if ssh['node_name'] not in names:
names.append(ssh['node_name'])
return names
def enable_lvm(self, lvmconfig):
"""Method for enabling lvm oh hosts in environment
:param lvmconfig: dict with ids or device' names of lvm storage
:raises: devops.error.DevopsCalledProcessError,
devops.error.TimeoutError, AssertionError, ValueError
"""
def get_actions(lvm_id):
return [
("sed -i -e 's/\\(\\budev_sync = \\)1/\\10/' "
"-e 's/\\(\\budev_rules = \\)1/\\10/' /etc/lvm/lvm.conf"),
"systemctl enable lvm2-lvmetad.service",
"systemctl enable lvm2-lvmetad.socket",
"systemctl start lvm2-lvmetad.service",
"systemctl start lvm2-lvmetad.socket",
"pvcreate {} && pvs".format(lvm_id),
"vgcreate default {} && vgs".format(lvm_id),
"lvcreate -L 1G -T default/pool && lvs",
]
lvmpackages = ["lvm2", "liblvm2-dev", "thin-provisioning-tools"]
for node_name in self.node_names():
lvm = lvmconfig.get(node_name, None)
if not lvm:
continue
if 'id' in lvm:
lvmdevice = '/dev/disk/by-id/{}'.format(lvm['id'])
elif 'device' in lvm:
lvmdevice = '/dev/{}'.format(lvm['device'])
else:
raise ValueError("Unknown LVM device type")
if lvmdevice:
self.apt_install_package(
packages=lvmpackages, node_name=node_name, verbose=True)
for command in get_actions(lvmdevice):
self.sudo_check_call(command, node_name=node_name,
verbose=True)
self.config_lvm = dict(lvmconfig)
def host_by_node_name(self, node_name, address_pool=None):
ssh_data = self.__ssh_data(node_name=node_name,
address_pool=address_pool)
return ssh_data['host']
def remote(self, node_name=None, host=None, address_pool=None):
"""Get SSHClient by a node name or hostname.
One of the following arguments should be specified:
- host (str): IP address or hostname. If specified, 'node_name' is
ignored.
- node_name (str): Name of the node stored to config.underlay.ssh
- address_pool (str): optional for node_name.
If None, use the first matched node_name.
"""
ssh_data = self.__ssh_data(node_name=node_name, host=host,
address_pool=address_pool)
return ssh_client.SSHClient(
host=ssh_data['host'],
port=ssh_data['port'] or 22,
username=ssh_data['login'],
password=ssh_data['password'],
private_keys=ssh_data['keys'])
def check_call(
self, cmd,
node_name=None, host=None, address_pool=None,
verbose=False, timeout=None,
error_info=None,
expected=None, raise_on_err=True):
"""Execute command on the node_name/host and check for exit code
:type cmd: str
:type node_name: str
:type host: str
:type verbose: bool
:type timeout: int
:type error_info: str
:type expected: list
:type raise_on_err: bool
:rtype: list stdout
:raises: devops.error.DevopsCalledProcessError
"""
remote = self.remote(node_name=node_name, host=host,
address_pool=address_pool)
return remote.check_call(
command=cmd, verbose=verbose, timeout=timeout,
error_info=error_info, expected=expected,
raise_on_err=raise_on_err)
def apt_install_package(self, packages=None, node_name=None, host=None,
**kwargs):
"""Method to install packages on ubuntu nodes
:type packages: list
:type node_name: str
:type host: str
:raises: devops.error.DevopsCalledProcessError,
devops.error.TimeoutError, AssertionError, ValueError
Other params of check_call and sudo_check_call are allowed
"""
expected = kwargs.pop('expected', None)
if not packages or not isinstance(packages, list):
raise ValueError("packages list should be provided!")
install = "apt-get install -y {}".format(" ".join(packages))
# Should wait until other 'apt' jobs are finished
pgrep_expected = [0, 1]
pgrep_command = "pgrep -a -f apt"
helpers.wait(
lambda: (self.check_call(
pgrep_command, expected=pgrep_expected, host=host,
node_name=node_name, **kwargs).exit_code == 1
), interval=30, timeout=1200,
timeout_msg="Timeout reached while waiting for apt lock"
)
# Install packages
self.sudo_check_call("apt-get update", node_name=node_name, host=host,
**kwargs)
self.sudo_check_call(install, expected=expected, node_name=node_name,
host=host, **kwargs)
def sudo_check_call(
self, cmd,
node_name=None, host=None, address_pool=None,
verbose=False, timeout=None,
error_info=None,
expected=None, raise_on_err=True):
"""Execute command with sudo on node_name/host and check for exit code
:type cmd: str
:type node_name: str
:type host: str
:type verbose: bool
:type timeout: int
:type error_info: str
:type expected: list
:type raise_on_err: bool
:rtype: list stdout
:raises: devops.error.DevopsCalledProcessError
"""
remote = self.remote(node_name=node_name, host=host,
address_pool=address_pool)
with remote.get_sudo(remote):
return remote.check_call(
command=cmd, verbose=verbose, timeout=timeout,
error_info=error_info, expected=expected,
raise_on_err=raise_on_err)
def dir_upload(self, host, source, destination):
"""Upload local directory content to remote host
:param host: str, remote node name
:param source: str, local directory path
:param destination: str, local directory path
"""
with self.remote(node_name=host) as remote:
remote.upload(source, destination)
def get_random_node(self):
"""Get random node name
:return: str, name of node
"""
return random.choice(self.node_names())
def yaml_editor(self, file_path, node_name=None, host=None,
address_pool=None):
"""Returns an initialized YamlEditor instance for context manager
Usage (with 'underlay' fixture):
# Local YAML file
with underlay.yaml_editor('/path/to/file') as editor:
editor.content[key] = "value"
# Remote YAML file on k8s host
with underlay.yaml_editor('/path/to/file',
host=config.k8s.kube_host) as editor:
editor.content[key] = "value"
"""
# Local YAML file
if node_name is None and host is None:
return utils.YamlEditor(file_path=file_path)
# Remote YAML file
ssh_data = self.__ssh_data(node_name=node_name, host=host,
address_pool=address_pool)
return utils.YamlEditor(
file_path=file_path,
host=ssh_data['host'],
port=ssh_data['port'] or 22,
username=ssh_data['login'],
password=ssh_data['password'],
private_keys=ssh_data['keys'])