210 lines
8.5 KiB
Python
210 lines
8.5 KiB
Python
# Copyright 2019 Red Hat, 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.
|
|
#
|
|
|
|
|
|
from concurrent import futures
|
|
import os
|
|
import six
|
|
|
|
from oslo_concurrency import processutils
|
|
from oslo_log import log as logging
|
|
|
|
from tripleo_common import constants
|
|
from tripleo_common.image.builder import base
|
|
from tripleo_common.utils import process
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class BuildahBuilder(base.BaseBuilder):
|
|
"""Builder to build container images with Buildah."""
|
|
|
|
def __init__(self, work_dir, deps, base='fedora', img_type='binary',
|
|
tag='latest', namespace='master',
|
|
registry_address='127.0.0.1:8787', push_containers=True):
|
|
"""Setup the parameters to build with Buildah.
|
|
|
|
:params work_dir: Directory where the Dockerfiles
|
|
are generated by Kolla.
|
|
:params deps: Dictionary defining the container images
|
|
dependencies.
|
|
:params base: Base image on which the containers are built.
|
|
Default to fedora.
|
|
:params img_type: Method used to build the image. All TripleO images
|
|
are built from binary method.
|
|
:params tag: Tag used to identify the images that we build.
|
|
Default to latest.
|
|
:params namespace: Namespace used to build the containers.
|
|
Default to master.
|
|
:params registry_address: IP + port of the registry where we push
|
|
the images. Default is 127.0.0.1:8787.
|
|
:params push: Flag to bypass registry push if False. Default is True
|
|
"""
|
|
|
|
super(BuildahBuilder, self).__init__()
|
|
self.build_timeout = constants.BUILD_TIMEOUT
|
|
self.work_dir = work_dir
|
|
self.deps = deps
|
|
self.base = base
|
|
self.img_type = img_type
|
|
self.tag = tag
|
|
self.namespace = namespace
|
|
self.registry_address = registry_address
|
|
self.push_containers = push_containers
|
|
# Each container image has a Dockerfile. Buildah needs to know
|
|
# the base directory later.
|
|
self.cont_map = {os.path.basename(root): root for root, dirs,
|
|
fnames in os.walk(self.work_dir)
|
|
if 'Dockerfile' in fnames}
|
|
# Building images with root so overlayfs is used, and not fuse-overlay
|
|
# from userspace, which would be slower.
|
|
self.buildah_cmd = ['sudo', 'buildah']
|
|
|
|
def _find_container_dir(self, container_name):
|
|
"""Return the path of the Dockerfile directory.
|
|
|
|
:params container_name: Name of the container.
|
|
"""
|
|
|
|
if container_name not in self.cont_map:
|
|
LOG.error('Container not found in Kolla '
|
|
'deps: %s' % container_name)
|
|
return self.cont_map.get(container_name, '')
|
|
|
|
def _generate_container(self, container_name):
|
|
"""Generate a container image by building and pushing the image.
|
|
|
|
:params container_name: Name of the container.
|
|
"""
|
|
|
|
self.build(container_name, self._find_container_dir(container_name))
|
|
if self.push_containers:
|
|
destination = "{}/{}/{}-{}-{}:{}".format(
|
|
self.registry_address,
|
|
self.namespace,
|
|
self.base,
|
|
self.img_type,
|
|
container_name,
|
|
self.tag
|
|
)
|
|
self.push(destination)
|
|
|
|
def build(self, container_name, container_build_path):
|
|
"""Build an image from a given directory.
|
|
|
|
:params container_name: Name of the container.
|
|
:params container_build_path: Directory where the Dockerfile and other
|
|
files are located to build the image.
|
|
"""
|
|
|
|
destination = "{}/{}/{}-{}-{}:{}".format(
|
|
self.registry_address,
|
|
self.namespace,
|
|
self.base,
|
|
self.img_type,
|
|
container_name,
|
|
self.tag
|
|
)
|
|
# 'buildah bud' is the command we want because Kolla uses Dockefile to
|
|
# build images.
|
|
# TODO(emilien): Stop ignoring TLS. The deployer should either secure
|
|
# the registry or add it to insecure_registries.
|
|
logfile = container_build_path + '/' + container_name + '-build.log'
|
|
args = self.buildah_cmd + ['bud', '--tls-verify=False', '--logfile',
|
|
logfile, '-t', destination,
|
|
container_build_path]
|
|
print("Building %s image with: %s" % (container_name, ' '.join(args)))
|
|
process.execute(
|
|
*args,
|
|
check_exit_code=True,
|
|
run_as_root=False,
|
|
use_standard_locale=True
|
|
)
|
|
|
|
def push(self, destination):
|
|
"""Push an image to a container registry.
|
|
|
|
:params destination: URL to used to push the container. It contains
|
|
the registry address, namespace, base, img_type, container name
|
|
and tag.
|
|
"""
|
|
# TODO(emilien): Stop ignoring TLS. The deployer should either secure
|
|
# the registry or add it to insecure_registries.
|
|
# TODO(emilien) We need to figure out how we can push to something
|
|
# else than a Docker registry.
|
|
args = self.buildah_cmd + ['push', '--tls-verify=False', destination,
|
|
'docker://' + destination]
|
|
print("Pushing %s image with: %s" % (destination, ' '.join(args)))
|
|
process.execute(*args, run_as_root=False, use_standard_locale=True)
|
|
|
|
def build_all(self, deps=None):
|
|
"""Function that browse containers dependencies and build them.
|
|
|
|
:params deps: Dictionary defining the container images
|
|
dependencies.
|
|
"""
|
|
|
|
if deps is None:
|
|
deps = self.deps
|
|
|
|
if isinstance(deps, (list,)):
|
|
# Only a list of images can be multi-processed because they
|
|
# are the last layer to build. Otherwise we could have issues
|
|
# to build multiple times the same layer.
|
|
# Number of workers will be based on CPU count with a min 2,
|
|
# max 8. Concurrency in Buildah isn't that great so it's not
|
|
# useful to go above 8.
|
|
workers = min(8, max(2, processutils.get_worker_count()))
|
|
with futures.ThreadPoolExecutor(max_workers=workers) as executor:
|
|
future_to_build = {executor.submit(self.build_all,
|
|
container): container for container in
|
|
deps}
|
|
done, not_done = futures.wait(
|
|
future_to_build,
|
|
timeout=self.build_timeout,
|
|
return_when=futures.FIRST_EXCEPTION
|
|
)
|
|
# NOTE(cloudnull): Once the job has been completed all completed
|
|
# jobs are checked for exceptions. If any jobs
|
|
# failed a SystemError will be raised using the
|
|
# exception information. If any job was loaded
|
|
# but not executed a SystemError will be raised.
|
|
for job in done:
|
|
if job._exception:
|
|
raise SystemError(job._exception)
|
|
else:
|
|
if not_done:
|
|
error_msg = ('The following jobs were '
|
|
'incomplete: {}'.format(not_done))
|
|
|
|
exceptions_raised = [job._exception for job in not_done
|
|
if job._exception]
|
|
|
|
if exceptions_raised:
|
|
error_msg = error_msg + os.linesep + (
|
|
"%(raised_count)d of the incomplete "
|
|
"jobs threw exceptions: %(exceptions)s" %
|
|
{'raised_count': len(exceptions_raised),
|
|
'exceptions': exceptions_raised})
|
|
|
|
raise SystemError(error_msg)
|
|
|
|
elif isinstance(deps, (dict,)):
|
|
for container in deps:
|
|
self._generate_container(container)
|
|
self.build_all(deps.get(container))
|
|
elif isinstance(deps, six.string_types):
|
|
self._generate_container(deps)
|