project-config/nodepool/elements/cache-devstack/extra-data.d/55-cache-devstack-repos
Clark Boylan 12dc33e30c Use sudo when manipulating git for image list
When we build our images we attempt to checkout all of the valid
devstack branches so that we can list all of the images necessary to be
cached for each branch. Unfortunately this devstack repo is owned by
root during dib and snapshot image builds. This means we must use sudo
when updating the repo (either changing branches or updating the
current branch).

Change-Id: I8cd09cfed4d586648dcbd34fa04bfc030c31ee45
2015-02-26 18:19:23 -08:00

200 lines
6.8 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
# this is a bit weird; we want to get the filter to use on the
# devstack lib/[apt|rpm] files to pre-install them. So we have to
# swizzle things around
RELEASE=None
if 'DIB_RELEASE' in os.environ:
RELEASE=os.environ['DIB_RELEASE']
if 'DISTRO_NAME' in os.environ:
if os.environ['DISTRO_NAME'] == 'centos7':
# centos7 matches as rhel7 in devstack
RELEASE='rhel7'
if not RELEASE:
print "Can not determine RELEASE"
sys.exit(1)
TMP_MOUNT_PATH = os.environ['TMP_MOUNT_PATH']
TMP_HOOKS_PATH = os.environ['TMP_HOOKS_PATH']
DEVSTACK = os.path.join(TMP_MOUNT_PATH, 'opt/git/openstack-dev/devstack')
CACHEDIR = os.path.join(TMP_MOUNT_PATH, 'tmp')
IMAGES=os.path.join(TMP_HOOKS_PATH, 'source-repository-images')
def run_local(cmd, status=False, cwd='.', env={}):
print "Running:", cmd
newenv = os.environ
newenv.update(env)
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, cwd=cwd,
stderr=subprocess.STDOUT, env=newenv)
(out, nothing) = p.communicate()
if status:
return (p.returncode, out.strip())
return out.strip()
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(['sudo', 'git', 'checkout', branch], cwd=DEVSTACK)
run_local(['sudo', 'git', 'pull', '--ff-only', 'origin'], cwd=DEVSTACK)
if os.path.exists(os.path.join(TMP_MOUNT_PATH, '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(os.path.join(TMP_MOUNT_PATH, '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 main():
branches = local_prep(RELEASE)
with open(os.path.join(CACHEDIR, 'pkgs-to-install'), 'w') as pkgs:
for branch_data in branches:
if branch_data.get('debs'):
pkgs.write(" ".join(branch_data['debs']) + "\n")
elif branch_data.get('rpms'):
pkgs.write(" ".join(branch_data['rpms']) + "\n")
else:
sys.exit('No supported package data found.')
image_filenames = []
line_template = "%(name)s file %(location)s %(url)s\n"
with open(IMAGES, 'w') as images_list:
for branch_data in branches:
for url in branch_data['images']:
fname = url.split('/')[-1].strip()
if fname == '':
continue
# TODO: There is an image in devstack that starts with
# $HEAT_FETCHED_TEST_IMAGE
if fname.startswith('$'):
continue
if fname in image_filenames:
continue
image_filenames.append(fname)
args = dict(
name=fname,
location=os.path.join('/home/jenkins/cache/files', fname),
url=url)
images_list.write(line_template % args)
if __name__ == '__main__':
main()