project-config/nodepool/scripts/cache_devstack.py
Clark Boylan 7f35178617 Fix package and image list comment cleanup
When cleaning up comments from lines of the form:

  foo bar # this is a comment

You want to remove remove everything after the first comment character
not after the last comment character. This is because:

  foo bar # this is # a comment

Should get everything after bar removed not everything after is.
Unfortunately when you use str.rfind() you remove everything after is
not everything after bar. Switch to regular trusty find to fix this.

Change-Id: I78aa6b51b5be03bd3b8ce7885415442171218977
2016-04-19 17:27:14 -07:00

190 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 sys
from common import run_local
DEVSTACK = os.path.expanduser('/opt/git/openstack-dev/devstack')
CACHEDIR = os.path.expanduser('~/cache/files')
# Some jobs might require newer distro packages, so we can pre-cache
# deb packages from specified Ubuntu Cloud Archive pockets.
UCA_POCKETS = []
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.find(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.find('#')]
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 = []
image_tool = os.path.join(basedir, 'tools', 'image_list.sh')
if os.path.exists(image_tool):
returncode, out = run_local(image_tool, status=True)
if returncode:
print "%s failed" % image_tool
print "Exit: %s, Output: %s" % (returncode, out)
# reset images so we'll fall back
images = []
else:
images = out.split('\n')
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(['sudo', 'git', 'checkout', branch], cwd=DEVSTACK)
run_local(['sudo', 'git', 'pull', '--ff-only', 'origin'], cwd=DEVSTACK)
if os.path.exists('/usr/bin/apt-get'):
debs = []
debdir = os.path.join(DEVSTACK, 'files', 'debs')
if not os.path.exists(debdir):
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/yum'):
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()