fuel-agent/fuel_agent/cmd/ironic_callback.py

95 lines
3.3 KiB
Python
Executable File

# Copyright 2015 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 json
import sys
import time
import requests
from fuel_agent.utils import utils
_GET_ADDR_MAX_ITERATION = 50
_POST_CALLBACK_MAX_ITERATION = 50
_RETRY_INTERVAL = 5
def _process_error(message):
sys.stderr.write(message)
sys.stderr.write('\n')
sys.exit(1)
def main():
"""Script informs Ironic that bootstrap loading is done.
There are three mandatory parameters in kernel command line.
Ironic prepares these two:
'api-url' - URL of Ironic API service,
'deployment_id' - UUID of the node in Ironic.
Passed from PXE boot loader:
'BOOTIF' - MAC address of the boot interface,
http://www.syslinux.org/wiki/index.php/SYSLINUX#APPEND_-
Example: api_url=http://192.168.122.184:6385
deployment_id=eeeeeeee-dddd-cccc-bbbb-aaaaaaaaaaaa
BOOTIF=01-88-99-aa-bb-cc-dd
"""
kernel_params = utils.parse_kernel_cmdline()
api_url = kernel_params.get('api-url')
deployment_id = kernel_params.get('deployment_id')
if api_url is None or deployment_id is None:
_process_error('Mandatory parameter ("api-url" or "deployment_id") is '
'missing.')
bootif = kernel_params.get('BOOTIF')
if bootif is None:
_process_error('Cannot define boot interface, "BOOTIF" parameter is '
'missing.')
# The leading `01-' denotes the device type (Ethernet) and is not a part of
# the MAC address
boot_mac = bootif[3:].replace('-', ':')
for n in range(_GET_ADDR_MAX_ITERATION):
boot_ip = utils.get_interface_ip(boot_mac)
if boot_ip is not None:
break
time.sleep(_RETRY_INTERVAL)
else:
_process_error('Cannot find IP address of boot interface.')
# NOTE(pas-ha) supporting only Ironic API >= 1.22 !!!
headers = {'Content-Type': 'application/json',
'Accept': 'application/json',
'X-OpenStack-Ironic-API-Version': '1.22'}
data = {"callback_url": "ssh://" + boot_ip}
heartbeat = '{api_url}/v1/heartbeat/{uuid}'.format(api_url=api_url,
uuid=deployment_id)
for attempt in range(_POST_CALLBACK_MAX_ITERATION):
try:
resp = requests.post(heartbeat, data=json.dumps(data),
headers=headers)
except Exception as e:
error = str(e)
else:
if resp.status_code != 202:
error = ('Wrong status code %d returned from Ironic API' %
resp.status_code)
else:
break
time.sleep(_RETRY_INTERVAL)
else:
# executed only when whole for block was executed w/o breaks
_process_error(error)