/
build.py
executable file
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/
build.py
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#!/usr/bin/env python
# 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.
# TODO(jpeeler): Add clean up handler for SIGINT
from __future__ import print_function
import datetime
import errno
import graphviz
import json
import logging
import os
import pprint
import re
import requests
import shutil
import signal
import sys
import tarfile
import tempfile
import threading
import time
import docker
import git
import jinja2
from oslo_config import cfg
from requests import exceptions as requests_exc
import six
PROJECT_ROOT = os.path.abspath(os.path.join(
os.path.dirname(os.path.realpath(__file__)), '../..'))
# NOTE(SamYaple): Update the search patch to prefer PROJECT_ROOT as the source
# of packages to import if we are using local tools/build.py
# instead of pip installed kolla-build tool
if PROJECT_ROOT not in sys.path:
sys.path.insert(0, PROJECT_ROOT)
from kolla.common import config as common_config
from kolla import version
logging.basicConfig()
LOG = logging.getLogger(__name__)
LOG.setLevel(logging.INFO)
signal.signal(signal.SIGINT, signal.SIG_DFL)
class KollaDirNotFoundException(Exception):
pass
class KollaUnknownBuildTypeException(Exception):
pass
class KollaMismatchBaseTypeException(Exception):
pass
class KollaRpmSetupUnknownConfig(Exception):
pass
def docker_client():
try:
docker_kwargs = docker.utils.kwargs_from_env()
return docker.Client(version='auto', **docker_kwargs)
except docker.errors.DockerException:
LOG.exception('Can not communicate with docker service.'
'Please check docker service is running without errors')
sys.exit(1)
class PushThread(threading.Thread):
def __init__(self, conf, queue):
super(PushThread, self).__init__()
self.setDaemon(True)
self.conf = conf
self.queue = queue
self.dc = docker_client()
def run(self):
while True:
try:
image = self.queue.get()
LOG.debug('%s:Try to push the image', image['name'])
self.push_image(image)
except requests_exc.ConnectionError:
LOG.exception('%s:Make sure Docker is running and that you'
' have the correct privileges to run Docker'
' (root)', image['name'])
image['status'] = "connection_error"
except Exception:
LOG.exception('%s:Unknown error when pushing', image['name'])
image['status'] = "push_error"
finally:
if "error" not in image['status']:
LOG.info('%s:Pushed successfully', image['name'])
self.queue.task_done()
def push_image(self, image):
image['push_logs'] = str()
for response in self.dc.push(image['fullname'],
stream=True,
insecure_registry=True):
stream = json.loads(response)
if 'stream' in stream:
image['push_logs'] = image['logs'] + stream['stream']
LOG.info('%s', stream['stream'])
elif 'errorDetail' in stream:
image['status'] = "error"
LOG.error(stream['errorDetail']['message'])
class WorkerThread(threading.Thread):
def __init__(self, queue, push_queue, conf):
self.conf = conf
self.queue = queue
self.push_queue = push_queue
self.nocache = not conf.cache or conf.no_cache
self.forcerm = not conf.keep
self.dc = docker_client()
super(WorkerThread, self).__init__()
def end_task(self, image):
"""Properly inform the queue we are finished"""
# No matter whether the parent failed or not, we still process
# the children. We have the code in place to catch a parent in
# an 'error' status
for child in image['children']:
self.queue.put(child)
LOG.debug('%s:Added image to queue', child['name'])
self.queue.task_done()
LOG.debug('%s:Processed', image['name'])
def run(self):
"""Executes tasks until the queue is empty"""
while True:
try:
image = self.queue.get()
for _ in six.moves.range(self.conf.retries + 1):
self.builder(image)
if image['status'] in ['built', 'unmatched',
'parent_error']:
break
except requests_exc.ConnectionError:
LOG.exception('Make sure Docker is running and that you'
' have the correct privileges to run Docker'
' (root)')
image['status'] = "connection_error"
break
self.end_task(image)
def process_source(self, image, source):
dest_archive = os.path.join(image['path'], source['name'] + '-archive')
if source.get('type') == 'url':
LOG.debug("%s:Getting archive from %s", image['name'],
source['source'])
try:
r = requests.get(source['source'], timeout=self.conf.timeout)
except requests_exc.Timeout:
LOG.exception('Request timed out while getting archive'
' from %s', source['source'])
image['status'] = "error"
image['logs'] = str()
return
if r.status_code == 200:
with open(dest_archive, 'wb') as f:
f.write(r.content)
else:
LOG.error('%s:Failed to download archive: status_code %s',
image['name'], r.status_code)
image['status'] = "error"
return
elif source.get('type') == 'git':
clone_dir = '{}-{}'.format(dest_archive,
source['reference'].replace('/', '-'))
try:
LOG.debug("%s:Cloning from %s", image['name'],
source['source'])
git.Git().clone(source['source'], clone_dir)
git.Git(clone_dir).checkout(source['reference'])
reference_sha = git.Git(clone_dir).rev_parse('HEAD')
LOG.debug("%s:Git checkout by reference %s (%s)",
image['name'], source['reference'], reference_sha)
except Exception as e:
LOG.error("%s:Failed to get source from git", image['name'])
LOG.error("%s:Error:%s", image['name'], str(e))
# clean-up clone folder to retry
shutil.rmtree(clone_dir)
image['status'] = "error"
return
with tarfile.open(dest_archive, 'w') as tar:
tar.add(clone_dir, arcname=os.path.basename(clone_dir))
elif source.get('type') == 'local':
LOG.debug("%s:Getting local archive from %s", image['name'],
source['source'])
if os.path.isdir(source['source']):
with tarfile.open(dest_archive, 'w') as tar:
tar.add(source['source'],
arcname=os.path.basename(source['source']))
else:
shutil.copyfile(source['source'], dest_archive)
else:
LOG.error("%s:Wrong source type '%s'", image['name'],
source.get('type'))
image['status'] = "error"
return
# Set time on destination archive to epoch 0
os.utime(dest_archive, (0, 0))
return dest_archive
def update_buildargs(self):
buildargs = dict()
if self.conf.build_args:
buildargs = dict(self.conf.build_args)
proxy_vars = ('HTTP_PROXY', 'http_proxy', 'HTTPS_PROXY',
'https_proxy', 'FTP_PROXY', 'ftp_proxy',
'NO_PROXY', 'no_proxy')
for proxy_var in proxy_vars:
if proxy_var in os.environ and proxy_var not in buildargs:
buildargs[proxy_var] = os.environ.get(proxy_var)
if not buildargs:
return None
return buildargs
def builder(self, image):
LOG.debug('%s:Processing', image['name'])
if image['status'] == 'unmatched':
return
if (image['parent'] is not None and
image['parent']['status'] in ['error', 'parent_error',
'connection_error']):
LOG.error('%s:Parent image error\'d with message "%s"',
image['name'], image['parent']['status'])
image['status'] = "parent_error"
return
image['status'] = "building"
LOG.info('%s:Building', image['name'])
if 'source' in image and 'source' in image['source']:
self.process_source(image, image['source'])
if image['status'] == "error":
return
plugin_archives = list()
plugins_path = os.path.join(image['path'], 'plugins')
for plugin in image['plugins']:
archive_path = self.process_source(image, plugin)
if image['status'] == "error":
return
plugin_archives.append(archive_path)
if plugin_archives:
for plugin_archive in plugin_archives:
with tarfile.open(plugin_archive, 'r') as plugin_archive_tar:
plugin_archive_tar.extractall(path=plugins_path)
else:
try:
os.mkdir(plugins_path)
except OSError as e:
if e.errno == errno.EEXIST:
LOG.info('Directory %s already exist. Skipping.',
plugins_path)
else:
LOG.error('Failed to create directory %s: %s',
plugins_path, e)
image['status'] = "error"
return
with tarfile.open(os.path.join(image['path'], 'plugins-archive'),
'w') as tar:
tar.add(plugins_path, arcname='plugins')
# Pull the latest image for the base distro only
pull = True if image['parent'] is None else False
image['logs'] = str()
buildargs = self.update_buildargs()
for response in self.dc.build(path=image['path'],
tag=image['fullname'],
nocache=self.nocache,
rm=True,
pull=pull,
forcerm=self.forcerm,
buildargs=buildargs):
stream = json.loads(response.decode('utf-8'))
if 'stream' in stream:
image['logs'] = image['logs'] + stream['stream']
for line in stream['stream'].split('\n'):
if line:
LOG.info('%s:%s', image['name'], line)
if 'errorDetail' in stream:
image['status'] = "error"
LOG.error('%s:Error\'d with the following message',
image['name'])
for line in stream['errorDetail']['message'].split('\n'):
if line:
LOG.error('%s:%s', image['name'], line)
return
image['status'] = "built"
LOG.info('%s:Built', image['name'])
if self.conf.push:
self.push_queue.put(image)
class KollaWorker(object):
def __init__(self, conf):
self.conf = conf
self.images_dir = self._get_images_dir()
self.registry = conf.registry
if self.registry:
self.namespace = self.registry + '/' + conf.namespace
else:
self.namespace = conf.namespace
self.base = conf.base
self.base_tag = conf.base_tag
if self.base == 'ubuntu' and self.base_tag == 'latest':
self.base_tag = '14.04'
# TODO(inc0): This will override default latest, which is xenial
# if someone actually set up latest in their conf, it will be
# overriden as well
self.install_type = conf.install_type
self.tag = conf.tag
self.images = list()
rpm_setup_config = filter(None, conf.rpm_setup_config)
self.rpm_setup = self.build_rpm_setup(rpm_setup_config)
rh_base = ['fedora', 'centos', 'oraclelinux', 'rhel']
rh_type = ['source', 'binary', 'rdo', 'rhos']
deb_base = ['ubuntu', 'debian']
deb_type = ['source', 'binary']
if not ((self.base in rh_base and self.install_type in rh_type) or
(self.base in deb_base and self.install_type in deb_type)):
raise KollaMismatchBaseTypeException(
'{} is unavailable for {}'.format(self.install_type, self.base)
)
if self.install_type == 'binary':
self.install_metatype = 'rdo'
elif self.install_type == 'source':
self.install_metatype = 'mixed'
elif self.install_type == 'rdo':
self.install_type = 'binary'
self.install_metatype = 'rdo'
elif self.install_type == 'rhos':
self.install_type = 'binary'
self.install_metatype = 'rhos'
else:
raise KollaUnknownBuildTypeException(
'Unknown install type'
)
self.image_prefix = self.base + '-' + self.install_type + '-'
self.include_header = conf.include_header
self.include_footer = conf.include_footer
self.regex = conf.regex
self.image_statuses_bad = dict()
self.image_statuses_good = dict()
self.image_statuses_unmatched = dict()
self.maintainer = conf.maintainer
def _get_images_dir(self):
possible_paths = (
PROJECT_ROOT,
os.path.join(sys.prefix, 'share/kolla'),
os.path.join(sys.prefix, 'local/share/kolla'))
for path in possible_paths:
image_path = os.path.join(path, 'docker')
# NOTE(SamYaple): We explicty check for the base folder to ensure
# this is the correct path
# TODO(SamYaple): Improve this to make this safer
if os.path.exists(os.path.join(image_path, 'base')):
LOG.info('Found the docker image folder at %s', image_path)
return image_path
else:
raise KollaDirNotFoundException('Image dir can not be found')
def build_rpm_setup(self, rpm_setup_config):
"""Generates a list of docker commands based on provided configuration.
:param rpm_setup_config: A list of .rpm or .repo paths or URLs
:return: A list of docker commands
"""
rpm_setup = list()
for config in rpm_setup_config:
if config.endswith('.rpm'):
# RPM files can be installed with yum from file path or url
cmd = "RUN yum -y install {}".format(config)
elif config.endswith('.repo'):
if config.startswith('http'):
# Curl http://url/etc.repo to /etc/yum.repos.d/etc.repo
name = config.split('/')[-1]
cmd = "RUN curl {} -o /etc/yum.repos.d/{}".format(config,
name)
else:
# Copy .repo file from filesystem
cmd = "COPY {} /etc/yum.repos.d/".format(config)
else:
raise KollaRpmSetupUnknownConfig(
'RPM setup must be provided as .rpm or .repo files.'
' Attempted configuration was {}'.format(config)
)
rpm_setup.append(cmd)
return rpm_setup
def copy_apt_files(self):
if self.conf.apt_sources_list:
shutil.copyfile(
self.conf.apt_sources_list,
os.path.join(self.working_dir, "base", "sources.list")
)
if self.conf.apt_preferences:
shutil.copyfile(
self.conf.apt_preferences,
os.path.join(self.working_dir, "base", "apt_preferences")
)
def setup_working_dir(self):
"""Creates a working directory for use while building"""
ts = time.time()
ts = datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d_%H-%M-%S_')
self.temp_dir = tempfile.mkdtemp(prefix='kolla-' + ts)
self.working_dir = os.path.join(self.temp_dir, 'docker')
shutil.copytree(self.images_dir, self.working_dir)
self.copy_apt_files()
LOG.debug('Created working dir: %s', self.working_dir)
def set_time(self):
for root, dirs, files in os.walk(self.working_dir):
for file_ in files:
os.utime(os.path.join(root, file_), (0, 0))
for dir_ in dirs:
os.utime(os.path.join(root, dir_), (0, 0))
LOG.debug('Set atime and mtime to 0 for all content in working dir')
def create_dockerfiles(self):
kolla_version = version.version_info.cached_version_string()
for path in self.docker_build_paths:
template_name = "Dockerfile.j2"
env = jinja2.Environment( # nosec: not used to render HTML
loader=jinja2.FileSystemLoader(path))
template = env.get_template(template_name)
values = {'base_distro': self.base,
'base_image': self.conf.base_image,
'base_distro_tag': self.base_tag,
'install_metatype': self.install_metatype,
'image_prefix': self.image_prefix,
'install_type': self.install_type,
'namespace': self.namespace,
'tag': self.tag,
'maintainer': self.maintainer,
'kolla_version': kolla_version,
'rpm_setup': self.rpm_setup}
if self.include_header:
with open(self.include_header, 'r') as f:
values['include_header'] = f.read()
if self.include_footer:
with open(self.include_footer, 'r') as f:
values['include_footer'] = f.read()
content = template.render(values)
with open(os.path.join(path, 'Dockerfile'), 'w') as f:
f.write(content)
def find_dockerfiles(self):
"""Recursive search for Dockerfiles in the working directory"""
self.docker_build_paths = list()
path = self.working_dir
filename = 'Dockerfile.j2'
for root, dirs, names in os.walk(path):
if filename in names:
self.docker_build_paths.append(root)
LOG.debug('Found %s', root.split(self.working_dir)[1])
LOG.debug('Found %d Dockerfiles', len(self.docker_build_paths))
def cleanup(self):
"""Remove temp files"""
shutil.rmtree(self.temp_dir)
def filter_images(self):
"""Filter which images to build"""
filter_ = list()
if self.regex:
filter_ += self.regex
elif self.conf.profile:
for profile in self.conf.profile:
if profile not in self.conf.profiles:
self.conf.register_opt(cfg.ListOpt(profile,
default=[]),
'profiles')
if len(self.conf.profiles[profile]) == 0:
msg = 'Profile: {} does not exist'.format(profile)
raise ValueError(msg)
else:
filter_ += self.conf.profiles[profile]
if filter_:
patterns = re.compile(r"|".join(filter_).join('()'))
for image in self.images:
if image['status'] == 'matched':
continue
if re.search(patterns, image['name']):
image['status'] = 'matched'
while (image['parent'] is not None and
image['parent']['status'] != 'matched'):
image = image['parent']
image['status'] = 'matched'
LOG.debug('%s:Matched regex', image['name'])
else:
image['status'] = 'unmatched'
else:
for image in self.images:
image['status'] = 'matched'
def summary(self):
"""Walk the dictionary of images statuses and print results"""
# For debug we print the logs again if the image error'd. This is to
# to help us debug and it will be extra helpful in the gate.
for image in self.images:
if image['status'] == 'error':
LOG.debug("%s:Failed with the following logs", image['name'])
for line in image['logs'].split('\n'):
if line:
LOG.debug("%s:%s", image['name'], ''.join(line))
self.get_image_statuses()
if self.image_statuses_good:
LOG.info("Successfully built images")
LOG.info("=========================")
for name in self.image_statuses_good.keys():
LOG.info(name)
if self.image_statuses_bad:
LOG.info("Images that failed to build")
LOG.info("===========================")
for name, status in self.image_statuses_bad.items():
LOG.error('%s Failed with status: %s', name, status)
if self.image_statuses_unmatched:
LOG.debug("Images not matched for build by regex")
LOG.debug("=====================================")
for name in self.image_statuses_unmatched.keys():
LOG.debug(name)
def get_image_statuses(self):
if any([self.image_statuses_bad,
self.image_statuses_good,
self.image_statuses_unmatched]):
return (self.image_statuses_bad,
self.image_statuses_good,
self.image_statuses_unmatched)
for image in self.images:
if image['status'] == "built":
self.image_statuses_good[image['name']] = image['status']
elif image['status'] == "unmatched":
self.image_statuses_unmatched[image['name']] = image['status']
else:
self.image_statuses_bad[image['name']] = image['status']
return (self.image_statuses_bad,
self.image_statuses_good,
self.image_statuses_unmatched)
def build_image_list(self):
def process_source_installation(image, section):
installation = dict()
# NOTE(jeffrey4l): source is not needed when the type is None
if self.conf._get('type', self.conf._get_group(section)) is None:
LOG.debug('%s:No source location found', section)
else:
installation['type'] = self.conf[section]['type']
installation['source'] = self.conf[section]['location']
installation['name'] = section
if installation['type'] == 'git':
installation['reference'] = self.conf[section]['reference']
return installation
for path in self.docker_build_paths:
# Reading parent image name
with open(os.path.join(path, 'Dockerfile')) as f:
content = f.read()
image = dict()
image['status'] = "unprocessed"
image['name'] = os.path.basename(path)
image['fullname'] = self.namespace + '/' + self.image_prefix + \
image['name'] + ':' + self.tag
image['path'] = path
image['parent_name'] = content.split(' ')[1].split('\n')[0]
if not image['parent_name'].startswith(self.namespace + '/'):
image['parent'] = None
image['children'] = list()
image['plugins'] = list()
if self.install_type == 'source':
# NOTE(jeffrey4l): register the opts if the section didn't
# register in the kolla/common/config.py file
if image['name'] not in self.conf._groups:
self.conf.register_opts(common_config.get_source_opts(),
image['name'])
image['source'] = process_source_installation(image,
image['name'])
for plugin in [match.group(0) for match in
(re.search('{}-plugin-.+'.format(image['name']),
section) for section in
self.conf.list_all_sections()) if match]:
self.conf.register_opts(common_config.get_source_opts(),
plugin)
image['plugins'].append(
process_source_installation(image, plugin))
self.images.append(image)
def save_dependency(self, to_file):
dot = graphviz.Digraph(comment='Docker Images Dependency')
dot.body.extend(['rankdir=LR'])
for image in self.images:
if image['status'] not in ['matched']:
continue
dot.node(image['name'])
if image['parent'] is not None:
dot.edge(image['parent']['name'], image['name'])
with open(to_file, 'w') as f:
f.write(dot.source)
def list_images(self):
for count, image in enumerate(self.images):
print(count + 1, ':', image['name'])
def list_dependencies(self):
match = False
for image in self.images:
if image['status'] in ['matched']:
match = True
if image['parent'] is None:
base = image
if not match:
print('Nothing matched!')
return
def list_children(images, ancestry):
children = ancestry.values()[0]
for item in images:
if item['status'] not in ['matched']:
continue
if not item['children']:
children.append(item['name'])
else:
newparent = {item['name']: []}
children.append(newparent)
list_children(item['children'], newparent)
ancestry = {base['name']: []}
list_children(base['children'], ancestry)
pprint.pprint(ancestry)
def find_parents(self):
"""Associate all images with parents and children"""
sort_images = dict()
for image in self.images:
sort_images[image['fullname']] = image
for parent_name, parent in sort_images.items():
for image in sort_images.values():
if image['parent_name'] == parent_name:
parent['children'].append(image)
image['parent'] = parent
def build_queue(self):
"""Organizes Queue list
Return a list of Queues that have been organized into a hierarchy
based on dependencies
"""
self.build_image_list()
self.find_parents()
self.filter_images()
queue = six.moves.queue.Queue()
for image in self.images:
if image['parent'] is None:
queue.put(image)
LOG.debug('%s:Added image to queue', image['name'])
return queue
def main():
conf = cfg.ConfigOpts()
common_config.parse(conf, sys.argv[1:], prog='kolla-build')
if conf.debug:
LOG.setLevel(logging.DEBUG)
kolla = KollaWorker(conf)
kolla.setup_working_dir()
kolla.find_dockerfiles()
kolla.create_dockerfiles()
if conf.template_only:
LOG.info('Dockerfiles are generated in %s', kolla.working_dir)
return
# We set the atime and mtime to 0 epoch to preserve allow the Docker cache
# to work like we want. A different size or hash will still force a rebuild
kolla.set_time()
queue = kolla.build_queue()
push_queue = six.moves.queue.Queue()
if conf.save_dependency:
kolla.save_dependency(conf.save_dependency)
LOG.info('Docker images dependency is saved in %s',
conf.save_dependency)
return
if conf.list_images:
kolla.list_images()
return
if conf.list_dependencies:
kolla.list_dependencies()
return
for x in six.moves.range(conf.threads):
worker = WorkerThread(queue, push_queue, conf)
worker.setDaemon(True)
worker.start()
for x in six.moves.range(conf.push_threads):
push_thread = PushThread(conf, push_queue)
push_thread.start()
# block until queue is empty
queue.join()
push_queue.join()
kolla.summary()
kolla.cleanup()
return kolla.get_image_statuses()
if __name__ == '__main__':
main()