def _checkout_layer(self, repo, rootfs_fd, rootfs, rev):
# ostree 2016.8 has a glib introspection safe API for checkout, use it
# when available.
if hasattr(repo, "checkout_at"):
options = OSTree.RepoCheckoutAtOptions() # pylint: disable=no-member
options.overwrite_mode = OSTree.RepoCheckoutOverwriteMode.UNION_FILES
options.process_whiteouts = True
options.disable_fsync = True
if self.user:
options.mode = OSTree.RepoCheckoutMode.USER
repo.checkout_at(options, rootfs_fd, rootfs, rev)
else:
if self.user:
user = ["--user-mode"]
else:
user = []
util.check_call(["ostree", "--repo=%s" % self.get_ostree_repo_location(),
"checkout",
"--union"] +
user +
["--whiteouts",
"--fsync=no",
rev,
rootfs],
stdin=DEVNULL,
stdout=DEVNULL,
stderr=DEVNULL)
def checkout_container(self, container_name, rev_number):
"""
This method checks out a container into its corresponding folder, to a given
commit revision.
Before that, it stops the container using systemd, if found.
Parameters:
container_name (str): the name of the container
rev_number (str): the commit revision
"""
service = self.systemd.ListUnitsByNames([container_name + '.service'])
if service[0][2] != 'not-found':
self.logger.info("Stop the container {}".format(container_name))
self.stop_unit(container_name)
res = True
rootfs_fd = None
try:
options = OSTree.RepoCheckoutAtOptions()
options.overwrite_mode = OSTree.RepoCheckoutOverwriteMode.UNION_IDENTICAL
options.process_whiteouts = True
options.bareuseronly_dirs = True
options.no_copy_fallback = True
options.mode = OSTree.RepoCheckoutMode.USER
self.logger.info("Getting rev from repo:{}".format(container_name + ':' + container_name))
if rev_number is None:
rev = self.repo_containers.resolve_rev(container_name + ':' + container_name, False)[1]
else:
rev = rev_number
self.logger.info("Rev value:{}".format(rev))
if os.path.isdir(PATH_APPS + '/' + container_name):
shutil.rmtree(PATH_APPS + '/' + container_name)
os.mkdir(PATH_APPS + '/' + container_name)
self.logger.info("Create directory {}/{}".format(PATH_APPS, container_name))
rootfs_fd = os.open(PATH_APPS + '/' + container_name, os.O_DIRECTORY)
res = self.repo_containers.checkout_at(options, rootfs_fd, PATH_APPS + '/' + container_name, rev)
open(PATH_APPS + '/' + container_name + '/' + VALIDATE_CHECKOUT, 'a').close()
except GLib.Error as e:
self.logger.error("Checking out {} failed ({})".format(container_name, str(e)))
raise
if rootfs_fd is not None:
os.close(rootfs_fd)
if not res:
raise Exception("Checking out {} failed (returned False)")
def checkout_container(self, container_name, rev_number):
res = True
rootfs_fd = None
try:
options = OSTree.RepoCheckoutAtOptions()
options.overwrite_mode = OSTree.RepoCheckoutOverwriteMode.UNION_IDENTICAL
options.process_whiteouts = True
options.bareuseronly_dirs = True
options.no_copy_fallback = True
options.mode = OSTree.RepoCheckoutMode.USER
self.logger.info(
"Getting rev from repo:{}".format(container_name + ':' +
container_name))
if rev_number == None:
rev = self.repo_containers.resolve_rev(
container_name + ':' + container_name, False)[1]
else:
rev = rev_number
self.logger.info("Rev value:{}".format(rev))
if os.path.isdir(PATH_APPS + '/' + container_name):
shutil.rmtree(PATH_APPS + '/' + container_name)
os.mkdir(PATH_APPS + '/' + container_name)
self.logger.info("Create directory {}/{}".format(
PATH_APPS, container_name))
rootfs_fd = os.open(PATH_APPS + '/' + container_name,
os.O_DIRECTORY)
res = self.repo_containers.checkout_at(
options, rootfs_fd, PATH_APPS + '/' + container_name, rev)
open(PATH_APPS + '/' + container_name + '/' + VALIDATE_CHECKOUT,
'a').close()
except GLib.Error as e:
self.logger.error("Checking out {} failed ({})".format(
container_name, str(e)))
res = False
if rootfs_fd != None:
os.close(rootfs_fd)
return res
