system-config/modules/openstack_project/files/nodepool/scripts/cache_devstack.py
Adam Gandelman 617919da41 Pre-cache UCA packages during nodepool img build
While caching packages required by devstack, temporarily enable
the Ubuntu Cloud Archive for specified pockets and do additional
deb package caching.  This will pre-cache UCA versions of devstack
dependencies alongside the standard 12.04 requirements. After they
have been cached, the repository access is removed.  This allows
standard devstack jobs to use the vanilla 12.04 packages as usual,
and jobs that require UCA can enable it and use it without hitting
the network for either the GPG key or the packages.

Change-Id: I1cad663a71a3129dc97347dd4d39a760e432aff2
Closes-bug: #1329430.
2014-06-12 15:56:19 -07:00

189 lines
6.4 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright (C) 2011-2013 OpenStack Foundation
#
# 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 os
import subprocess
import sys
from common import run_local
DEVSTACK = os.path.expanduser('/opt/git/openstack-dev/devstack')
CACHEDIR = os.path.expanduser('~/cache/files')
# Some jobs require newer distro packages. We pre-cache deb packages from
# specified Ubuntu Cloud Archive pockets. The icehouse pocket contains
# Ubuntu 14.04 packages built for 12.04.
UCA_POCKETS = ['icehouse']
def git_branches():
branches = []
for branch in run_local(['git', 'branch', '-a'], cwd=DEVSTACK).split("\n"):
branch = branch.strip()
if not branch.startswith('remotes/origin'):
continue
branches.append(branch)
return branches
def tokenize(fn, tokens, distribution, comment=None):
for line in open(fn):
if 'dist:' in line and ('dist:%s' % distribution not in line):
continue
if 'qpid' in line:
continue # TODO: explain why this is here
if comment and comment in line:
line = line[:line.rfind(comment)]
line = line.strip()
if line and line not in tokens:
tokens.append(line)
def _legacy_find_images(basedir):
"""Divine what images we should use based on parsing stackrc."""
images = []
for line in open(os.path.join(basedir, 'stackrc')):
line = line.strip()
if line.startswith('IMAGE_URLS'):
if '#' in line:
line = line[:line.rfind('#')]
if line.endswith(';;'):
line = line[:-2]
line = line.split('=', 1)[1].strip()
if line.startswith('${IMAGE_URLS:-'):
line = line[len('${IMAGE_URLS:-'):]
if line.endswith('}'):
line = line[:-1]
if not line:
continue
if line[0] == line[-1] == '"':
line = line[1:-1]
# Add image to the list to be downloaded, but
# skip downloading giant vmware images
images += [x.strip() for x in line.split(',')
if not x.strip().endswith('vmdk')]
return images
def _find_images(basedir):
images = []
try:
image_tool = os.path.join(basedir, 'tools', 'image_list.sh')
if os.path.exists(image_tool):
images = subprocess.check_output(image_tool).split('\n')
except subprocess.CalledProcessError as ce:
print "image_list.sh failed"
print "Exit: %s, Output: %s" % (ce.returncode, ce.output)
# reset images so we'll fall back
images = []
return images
def local_prep(distribution):
branches = []
for branch in git_branches():
# Ignore branches of the form 'somestring -> someotherstring'
# as this denotes a symbolic reference and the entire string
# as is cannot be checked out. We can do this safely as the
# reference will refer to one of the other branches returned
# by git_branches.
if ' -> ' in branch:
continue
branch_data = {'name': branch}
print 'Branch: ', branch
run_local(['git', 'checkout', branch], cwd=DEVSTACK)
run_local(['git', 'pull', '--ff-only', 'origin'], cwd=DEVSTACK)
if os.path.exists('/usr/bin/apt-get'):
debs = []
debdir = os.path.join(DEVSTACK, 'files', 'apts')
for fn in os.listdir(debdir):
fn = os.path.join(debdir, fn)
tokenize(fn, debs, distribution, comment='#')
branch_data['debs'] = debs
if os.path.exists('/usr/bin/rpm'):
rpms = []
rpmdir = os.path.join(DEVSTACK, 'files', 'rpms')
for fn in os.listdir(rpmdir):
fn = os.path.join(rpmdir, fn)
tokenize(fn, rpms, distribution, comment='#')
branch_data['rpms'] = rpms
images = _find_images(DEVSTACK)
if not images:
images = _legacy_find_images(DEVSTACK)
branch_data['images'] = images
branches.append(branch_data)
return branches
def download(url, fname):
run_local(['wget', '-nv', '-c', url, '-O', os.path.join(CACHEDIR, fname)])
def cache_debs(debs, uca_pocket=None):
"""Cache a list of deb packages, optionally pulling from an Ubuntu Cloud
Archive pocket. If a UCA pocket is specified, it is enabled temporarily
for caching only.
"""
if uca_pocket:
# Note this will install the ubuntu-cloud-keyring package which
# contains the required GPG key.
run_local(['sudo', 'add-apt-repository', '-y',
'cloud-archive:%s' % uca_pocket])
run_local(['sudo', 'apt-get', 'update'])
run_local(['sudo', 'apt-get', '-y', '-d', 'install'] + debs)
if uca_pocket:
run_local(['sudo', 'rm', '-f',
'/etc/apt/sources.list.d/cloudarchive-%s.list' % uca_pocket])
run_local(['sudo', 'apt-get', 'update'])
def main():
distribution = sys.argv[1]
branches = local_prep(distribution)
image_filenames = []
for branch_data in branches:
if branch_data.get('debs'):
cache_debs(branch_data['debs'])
for uca in sorted(UCA_POCKETS):
cache_debs(branch_data['debs'], uca)
elif branch_data.get('rpms'):
run_local(['sudo', 'yum', 'install', '-y', '--downloadonly'] +
branch_data['rpms'])
else:
sys.exit('No supported package data found.')
for url in branch_data['images']:
fname = url.split('/')[-1]
if fname in image_filenames:
continue
image_filenames.append(fname)
download(url, fname)
# cache get-pip, because upstream network connection fails more
# often than you might imagine.
download('https://bootstrap.pypa.io/get-pip.py', 'get-pip.py')
if __name__ == '__main__':
main()