def _import_layers_into_ostree(repo, imagebranch, manifest, layers):
repo.prepare_transaction()
for layer, tar in layers.items():
mtree = OSTree.MutableTree()
def filter_func(*args):
info = args[2]
if info.get_file_type() == Gio.FileType.DIRECTORY:
info.set_attribute_uint32(
"unix::mode",
info.get_attribute_uint32("unix::mode") | stat.S_IWUSR)
return OSTree.RepoCommitFilterResult.ALLOW
modifier = OSTree.RepoCommitModifier.new(0, filter_func, None)
repo.write_archive_to_mtree(Gio.File.new_for_path(tar), mtree,
modifier, True)
root = repo.write_mtree(mtree)[1]
metav = GLib.Variant("a{sv}",
{'docker.layer': GLib.Variant('s', layer)})
csum = repo.write_commit(None, "", None, metav, root)[1]
repo.transaction_set_ref(None,
"%s%s" % (OSTREE_OCIIMAGE_PREFIX, layer),
csum)
# create a $OSTREE_OCIIMAGE_PREFIX$image-$tag branch
if not isinstance(manifest, str):
manifest = json.dumps(manifest)
metadata = GLib.Variant(
"a{sv}", {'docker.manifest': GLib.Variant('s', manifest)})
mtree = OSTree.MutableTree()
file_info = Gio.FileInfo()
file_info.set_attribute_uint32("unix::uid", 0)
file_info.set_attribute_uint32("unix::gid", 0)
file_info.set_attribute_uint32("unix::mode", 0o755 | stat.S_IFDIR)
dirmeta = OSTree.create_directory_metadata(file_info, None)
csum_dirmeta = repo.write_metadata(OSTree.ObjectType.DIR_META, None,
dirmeta)[1]
mtree.set_metadata_checksum(OSTree.checksum_from_bytes(csum_dirmeta))
root = repo.write_mtree(mtree)[1]
csum = repo.write_commit(None, "", None, metadata, root)[1]
repo.transaction_set_ref(None, imagebranch, csum)
repo.commit_transaction(None)
def setUp(self):
self.tmp = tempfile.TemporaryDirectory()
self.repo = OSTree.Repo.new(Gio.File.new_for_path(self.tmp.name))
self.repo.set_disable_fsync(True)
self.repo.create(OSTree.RepoMode.BARE_USER_ONLY)
self.mtree = OSTree.MutableTree()
def _import_layers_into_ostree(repo, imagebranch, manifest, layers):
repo.prepare_transaction()
for layer, tar in layers.items():
mtree = OSTree.MutableTree()
def filter_func(*args):
info = args[2]
if info.get_file_type() == Gio.FileType.DIRECTORY:
info.set_attribute_uint32("unix::mode", info.get_attribute_uint32("unix::mode") | stat.S_IWUSR)
return OSTree.RepoCommitFilterResult.ALLOW
modifier = OSTree.RepoCommitModifier.new(0, filter_func, None)
metav = GLib.Variant("a{sv}", {'docker.layer': GLib.Variant('s', layer)})
imported = False
try:
repo.write_archive_to_mtree(Gio.File.new_for_path(tar), mtree, modifier, True)
root = repo.write_mtree(mtree)[1]
csum = repo.write_commit(None, "", None, metav, root)[1]
imported = True
except GLib.GError as e: #pylint: disable=catching-non-exception
# libarchive which is used internally by OSTree to import a tarball doesn't support correctly
# files with xattrs. If that happens, extract the tarball and import the directory.
if e.domain != "g-io-error-quark": # pylint: disable=no-member
raise e #pylint: disable=raising-non-exception
if not imported:
try:
temp_dir = tempfile.mkdtemp()
with tarfile.open(tar, 'r') as t:
t.extractall(temp_dir)
repo.write_directory_to_mtree(Gio.File.new_for_path(temp_dir), mtree, modifier)
root = repo.write_mtree(mtree)[1]
csum = repo.write_commit(None, "", None, metav, root)[1]
finally:
shutil.rmtree(temp_dir)
root = repo.write_mtree(mtree)[1]
csum = repo.write_commit(None, "", None, metav, root)[1]
repo.transaction_set_ref(None, "%s%s" % (OSTREE_OCIIMAGE_PREFIX, layer), csum)
# create a $OSTREE_OCIIMAGE_PREFIX$image-$tag branch
if not isinstance(manifest, str):
manifest = json.dumps(manifest)
metadata = GLib.Variant("a{sv}", {'docker.manifest': GLib.Variant('s', manifest)})
mtree = OSTree.MutableTree()
file_info = Gio.FileInfo()
file_info.set_attribute_uint32("unix::uid", 0)
file_info.set_attribute_uint32("unix::gid", 0)
file_info.set_attribute_uint32("unix::mode", 0o755 | stat.S_IFDIR)
dirmeta = OSTree.create_directory_metadata(file_info, None)
csum_dirmeta = repo.write_metadata(OSTree.ObjectType.DIR_META, None, dirmeta)[1]
mtree.set_metadata_checksum(OSTree.checksum_from_bytes(csum_dirmeta))
root = repo.write_mtree(mtree)[1]
csum = repo.write_commit(None, "", None, metadata, root)[1]
repo.transaction_set_ref(None, imagebranch, csum)
repo.commit_transaction(None)