def create(self, filename, base_image):
"""
Create compressed oci system container tar archive
:param string filename: archive file name
:param string base_image: archive used as a base image
"""
exclude_list = Defaults.get_exclude_list_for_root_data_sync()
exclude_list.append('boot')
exclude_list.append('dev')
exclude_list.append('sys')
exclude_list.append('proc')
oci = OCI()
if base_image:
oci.import_container_image(
'oci-archive:{0}:{1}'.format(
base_image, Defaults.get_container_base_image_tag()
)
)
else:
oci.init_container()
image_ref = '{0}:{1}'.format(
self.oci_config['container_name'], self.oci_config['container_tag']
)
oci.unpack()
oci.sync_rootfs(self.root_dir, exclude_list)
oci.repack(self.oci_config)
oci.set_config(self.oci_config)
oci.post_process()
if self.archive_transport == 'docker-archive':
image_ref = '{0}:{1}'.format(
self.oci_config['container_name'],
self.oci_config['container_tag']
)
additional_refs = []
if 'additional_tags' in self.oci_config:
additional_refs = []
for tag in self.oci_config['additional_tags']:
additional_refs.append('{0}:{1}'.format(
self.oci_config['container_name'], tag
))
else:
image_ref = self.oci_config['container_tag']
additional_refs = []
oci.export_container_image(
filename, self.archive_transport, image_ref, additional_refs
)
if self.runtime_config.get_container_compression():
compressor = Compress(filename)
return compressor.xz(self.runtime_config.get_xz_options())
else:
return filename
class ContainerImageOCI(object):
"""
Create oci container from a root directory
:param string root_dir: root directory path name
:param dict custom_args:
Custom processing arguments defined as hash keys:
Example
.. code:: python
{
'container_name': 'name',
'container_tag': '1.0',
'additional_tags': ['current', 'foobar'],
'entry_command': ['/bin/bash', '-x'],
'entry_subcommand': ['ls', '-l'],
'maintainer': 'tux',
'user': '******',
'workingdir': '/root',
'expose_ports': ['80', '42'],
'volumes': ['/var/log', '/tmp'],
'environment': {'PATH': '/bin'},
'labels': {'name': 'value'},
'history': {
'created_by': 'some explanation here',
'comment': 'some comment here',
'author': 'tux'
}
}
"""
def __init__(self, root_dir, custom_args=None):
self.root_dir = root_dir
self.oci_root_dir = None
if custom_args:
self.oci_config = custom_args
else:
self.oci_config = {}
self.runtime_config = RuntimeConfig()
# for builds inside the buildservice we include a reference to the
# specific build. Thus disturl label only exists inside the
# buildservice.
if Defaults.is_buildservice_worker():
bs_label = 'org.openbuildservice.disturl'
# Do not label anything if any build service label is
# already present
if 'labels' not in self.oci_config or \
bs_label not in self.oci_config['labels']:
self._append_buildservice_disturl_label()
if 'container_name' not in self.oci_config:
log.info('No container configuration provided, '
'using default container name "kiwi-container:latest"')
self.oci_config['container_name'] = \
Defaults.get_default_container_name()
self.oci_config['container_tag'] = \
Defaults.get_default_container_tag()
if 'container_tag' not in self.oci_config:
self.oci_config['container_tag'] = \
Defaults.get_default_container_tag()
if 'entry_command' not in self.oci_config and \
'entry_subcommand' not in self.oci_config:
self.oci_config['entry_subcommand'] = \
Defaults.get_default_container_subcommand()
if 'history' not in self.oci_config:
self.oci_config['history'] = {}
if 'created_by' not in self.oci_config['history']:
self.oci_config['history']['created_by'] = \
Defaults.get_default_container_created_by()
self.oci = OCI(self.oci_config['container_tag'])
def create(self, filename, base_image):
"""
Create compressed oci system container tar archive
:param string filename: archive file name
:param string base_image: archive used as a base image
"""
exclude_list = Defaults.get_exclude_list_for_root_data_sync()
exclude_list.append('boot')
exclude_list.append('dev')
exclude_list.append('sys')
exclude_list.append('proc')
if base_image:
Path.create(self.oci.container_dir)
image_tar = ArchiveTar(base_image)
image_tar.extract(self.oci.container_dir)
self.oci.init_layout(bool(base_image))
self.oci.unpack()
self.oci.sync_rootfs(''.join([self.root_dir, os.sep]), exclude_list)
self.oci.repack(self.oci_config)
if 'additional_tags' in self.oci_config:
for tag in self.oci_config['additional_tags']:
self.oci.add_tag(tag)
self.oci.set_config(self.oci_config, bool(base_image))
self.oci.garbage_collect()
return self.pack_image_to_file(filename)
def pack_image_to_file(self, filename):
"""
Packs the oci image into the given filename.
:param string filename: file name of the resulting packed image
"""
oci_tarfile = ArchiveTar(filename)
container_compressor = self.runtime_config.get_container_compression()
if container_compressor:
return oci_tarfile.create_xz_compressed(
self.oci.container_dir,
xz_options=self.runtime_config.get_xz_options())
else:
return oci_tarfile.create(self.oci.container_dir)
def _append_buildservice_disturl_label(self):
with open(os.sep + Defaults.get_buildservice_env_name()) as env:
for line in env:
if line.startswith('BUILD_DISTURL') and '=' in line:
disturl = line.split('=')[1].lstrip('\'\"').rstrip(
'\n\'\"')
if disturl:
self.oci_config['labels'] = {
'org.openbuildservice.disturl': disturl
}
return
log.warning('Could not find BUILD_DISTURL inside .buildenv')