def extract_nulecule_data(self, image, source, dest, update=False):
"""
Extract the Nulecule contents from a container into a destination
directory.
Args:
image (str): Docker image name
source (str): Source directory in Docker image to copy from
dest (str): Path to destination directory on host
update (bool): Update destination directory if it exists when
True
Returns:
None
"""
logger.info(
'Extracting Nulecule data from image %s to %s' % (image, dest))
if self.dryrun:
return
# Create a temporary directory for extraction
tmpdir = '/tmp/nulecule-{}'.format(uuid.uuid1())
self.extract_files(image, source=source, dest=tmpdir)
# If the application already exists locally then need to
# make sure the local app id is the same as the one requested
# on the command line.
mainfile = os.path.join(dest, MAIN_FILE)
tmpmainfile = os.path.join(tmpdir, MAIN_FILE)
if os.path.exists(mainfile):
existing_id = Utils.getAppId(mainfile)
new_id = Utils.getAppId(tmpmainfile)
cockpit_logger.info("Loading app_id %s" % new_id)
if existing_id != new_id:
raise NuleculeException(
"Existing app (%s) and requested app (%s) differ" %
(existing_id, new_id))
# If app exists and no update requested then move on
if update:
logger.info("App exists locally. Performing update...")
else:
logger.info("App exists locally and no update requested")
return
# Copy files from tmpdir into place
logger.debug('Copying nulecule data from %s to %s' % (tmpdir, dest))
Utils.copy_dir(tmpdir, dest, update)
# Clean up tmpdir
logger.debug('Removing tmp dir: %s' % tmpdir)
Utils.rm_dir(tmpdir)
# Set the proper permissions on the extracted folder
Utils.setFileOwnerGroup(dest)
def extract_nulecule_data(self, image, source, dest, update=False):
"""
Extract the Nulecule contents from a container into a destination
directory.
Args:
image (str): Docker image name
source (str): Source directory in Docker image to copy from
dest (str): Path to destination directory on host
update (bool): Update destination directory if it exists when
True
Returns:
None
"""
logger.info("Extracting Nulecule data from image %s to %s" % (image, dest))
if self.dryrun:
return
# Create a temporary directory for extraction
tmpdir = "/tmp/nulecule-{}".format(uuid.uuid1())
self.extract_files(image, source=source, dest=tmpdir)
# If the application already exists locally then need to
# make sure the local app id is the same as the one requested
# on the command line.
mainfile = os.path.join(dest, MAIN_FILE)
tmpmainfile = os.path.join(tmpdir, MAIN_FILE)
if os.path.exists(mainfile):
existing_id = Utils.getAppId(mainfile)
new_id = Utils.getAppId(tmpmainfile)
cockpit_logger.info("Loading app_id %s" % new_id)
if existing_id != new_id:
raise NuleculeException("Existing app (%s) and requested app (%s) differ" % (existing_id, new_id))
# If app exists and no update requested then move on
if update:
logger.info("App exists locally. Performing update...")
else:
logger.info("App exists locally and no update requested")
return
# Copy files from tmpdir into place
logger.debug("Copying nulecule data from %s to %s" % (tmpdir, dest))
Utils.copy_dir(tmpdir, dest, update)
# Clean up tmpdir
logger.debug("Removing tmp dir: %s" % tmpdir)
Utils.rm_dir(tmpdir)
# Set the proper permissions on the extracted folder
Utils.setFileOwnerGroup(dest)
def extract(self, image, source, dest, update=False):
"""
Extracts content from a directory in a Docker image to specified
destination.
Args:
image (str): Docker image name
source (str): Source directory in Docker image to copy from
dest (str): Path to destination directory on host
update (bool): Update destination directory if it exists when
True
Returns:
None
"""
logger.info('Extracting nulecule data from image: %s to %s' %
(image, dest))
if self.dryrun:
return
# Create dummy container
run_cmd = [
self.docker_cli, 'create', '--entrypoint', '/bin/true', image
]
logger.debug('Creating docker container: %s' % ' '.join(run_cmd))
container_id = subprocess.check_output(run_cmd).strip()
# Copy files out of dummy container to tmpdir
tmpdir = '/tmp/nulecule-{}'.format(uuid.uuid1())
cp_cmd = [
self.docker_cli, 'cp',
'%s:/%s' % (container_id, source), tmpdir
]
logger.debug('Copying data from Docker container: %s' %
' '.join(cp_cmd))
subprocess.call(cp_cmd)
# There has been some inconsistent behavior where docker cp
# will either copy out the entire dir /APP_ENT_PATH/*files* or
# it will copy out just /*files* without APP_ENT_PATH. Detect
# that here and adjust accordingly.
src = os.path.join(tmpdir, APP_ENT_PATH)
if not os.path.exists(src):
src = tmpdir
# If the application already exists locally then need to
# make sure the local app id is the same as the one requested
# on the command line.
mainfile = os.path.join(dest, MAIN_FILE)
tmpmainfile = os.path.join(src, MAIN_FILE)
if os.path.exists(mainfile):
existing_id = Utils.getAppId(mainfile)
new_id = Utils.getAppId(tmpmainfile)
cockpit_logger.info("Loading app_id %s ." % new_id)
if existing_id != new_id:
raise NuleculeException(
"Existing app (%s) and requested app (%s) differ" %
(existing_id, new_id))
# If app exists and no update requested then move on
if update:
logger.info("App exists locally. Performing update...")
else:
logger.info("App exists locally and no update requested")
return
# Copy files
logger.debug('Copying nulecule data from %s to %s' % (src, dest))
Utils.copy_dir(src, dest, update)
logger.debug('Removing tmp dir: %s' % tmpdir)
Utils.rm_dir(tmpdir)
# Clean up dummy container
rm_cmd = [self.docker_cli, 'rm', '-f', container_id]
logger.debug('Removing Docker container: %s' % ' '.join(rm_cmd))
subprocess.call(rm_cmd)
def extract(self, image, source, dest, update=False):
"""
Extracts content from a directory in a Docker image to specified
destination.
Args:
image (str): Docker image name
source (str): Source directory in Docker image to copy from
dest (str): Path to destination directory on host
update (bool): Update destination directory if it exists when
True
Returns:
None
"""
logger.info("Extracting Nulecule data from image %s to %s" % (image, dest))
if self.dryrun:
return
# Create dummy container
run_cmd = [self.docker_cli, "create", "--entrypoint", "/bin/true", image]
logger.debug("Creating docker container: %s" % " ".join(run_cmd))
container_id = subprocess.check_output(run_cmd).strip()
# Copy files out of dummy container to tmpdir
tmpdir = "/tmp/nulecule-{}".format(uuid.uuid1())
cp_cmd = [self.docker_cli, "cp", "%s:/%s" % (container_id, source), tmpdir]
logger.debug("Copying data from docker container: %s" % " ".join(cp_cmd))
subprocess.check_output(cp_cmd)
# There has been some inconsistent behavior where docker cp
# will either copy out the entire dir /APP_ENT_PATH/*files* or
# it will copy out just /*files* without APP_ENT_PATH. Detect
# that here and adjust accordingly.
src = os.path.join(tmpdir, APP_ENT_PATH)
if not os.path.exists(src):
src = tmpdir
# If the application already exists locally then need to
# make sure the local app id is the same as the one requested
# on the command line.
mainfile = os.path.join(dest, MAIN_FILE)
tmpmainfile = os.path.join(src, MAIN_FILE)
if os.path.exists(mainfile):
existing_id = Utils.getAppId(mainfile)
new_id = Utils.getAppId(tmpmainfile)
cockpit_logger.info("Loading app_id %s" % new_id)
if existing_id != new_id:
raise NuleculeException("Existing app (%s) and requested app (%s) differ" % (existing_id, new_id))
# If app exists and no update requested then move on
if update:
logger.info("App exists locally. Performing update...")
else:
logger.info("App exists locally and no update requested")
return
# Copy files
logger.debug("Copying nulecule data from %s to %s" % (src, dest))
Utils.copy_dir(src, dest, update)
logger.debug("Removing tmp dir: %s" % tmpdir)
Utils.rm_dir(tmpdir)
# Clean up dummy container
rm_cmd = [self.docker_cli, "rm", "-f", container_id]
logger.debug("Removing docker container: %s" % " ".join(rm_cmd))
subprocess.check_output(rm_cmd)
