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-rw-r--r--tests/cloud_tests/platforms/lxd/image.py38
-rw-r--r--tests/cloud_tests/platforms/lxd/instance.py6
2 files changed, 32 insertions, 12 deletions
diff --git a/tests/cloud_tests/platforms/lxd/image.py b/tests/cloud_tests/platforms/lxd/image.py
index b5de1f52..a88b47f3 100644
--- a/tests/cloud_tests/platforms/lxd/image.py
+++ b/tests/cloud_tests/platforms/lxd/image.py
@@ -8,6 +8,7 @@ import tempfile
from ..images import Image
from .snapshot import LXDSnapshot
+from cloudinit import subp
from cloudinit import util as c_util
from tests.cloud_tests import util
@@ -75,19 +76,36 @@ class LXDImage(Image):
}
def export_image(self, output_dir):
- """Export image from lxd image store to (split) tarball on disk.
+ """Export image from lxd image store to disk.
- @param output_dir: dir to store tarballs in
- @return_value: tuple of path to metadata tarball and rootfs tarball
+ @param output_dir: dir to store the exported image in
+ @return_value: tuple of path to metadata tarball and rootfs
+
+ Only the "split" image format with separate rootfs and metadata
+ files is supported, e.g:
+
+ 71f171df[...]cd31.squashfs (could also be: .tar.xz or .tar.gz)
+ meta-71f171df[...]cd31.tar.xz
+
+ Combined images made by a single tarball are not supported.
"""
# pylxd's image export feature doesn't do split exports, so use cmdline
- c_util.subp(['lxc', 'image', 'export', self.pylxd_image.fingerprint,
- output_dir], capture=True)
- tarballs = [p for p in os.listdir(output_dir) if p.endswith('tar.xz')]
+ fp = self.pylxd_image.fingerprint
+ subp.subp(['lxc', 'image', 'export', fp, output_dir], capture=True)
+ image_files = [p for p in os.listdir(output_dir) if fp in p]
+
+ if len(image_files) != 2:
+ raise NotImplementedError(
+ "Image %s has unsupported format. "
+ "Expected 2 files, found %d: %s."
+ % (fp, len(image_files), ', '.join(image_files)))
+
metadata = os.path.join(
- output_dir, next(p for p in tarballs if p.startswith('meta-')))
+ output_dir,
+ next(p for p in image_files if p.startswith('meta-')))
rootfs = os.path.join(
- output_dir, next(p for p in tarballs if not p.startswith('meta-')))
+ output_dir,
+ next(p for p in image_files if not p.startswith('meta-')))
return (metadata, rootfs)
def import_image(self, metadata, rootfs):
@@ -101,8 +119,8 @@ class LXDImage(Image):
"""
alias = util.gen_instance_name(
image_desc=str(self), use_desc='update-metadata')
- c_util.subp(['lxc', 'image', 'import', metadata, rootfs,
- '--alias', alias], capture=True)
+ subp.subp(['lxc', 'image', 'import', metadata, rootfs,
+ '--alias', alias], capture=True)
self.pylxd_image = self.platform.query_image_by_alias(alias)
return self.pylxd_image.fingerprint
diff --git a/tests/cloud_tests/platforms/lxd/instance.py b/tests/cloud_tests/platforms/lxd/instance.py
index 2b804a62..2b973a08 100644
--- a/tests/cloud_tests/platforms/lxd/instance.py
+++ b/tests/cloud_tests/platforms/lxd/instance.py
@@ -7,7 +7,8 @@ import shutil
import time
from tempfile import mkdtemp
-from cloudinit.util import load_yaml, subp, ProcessExecutionError, which
+from cloudinit.subp import subp, ProcessExecutionError, which
+from cloudinit.util import load_yaml
from tests.cloud_tests import LOG
from tests.cloud_tests.util import PlatformError
@@ -174,7 +175,8 @@ class LXDInstance(Instance):
raise PlatformError(
"console log",
"Console log failed [%d]: stdout=%s stderr=%s" % (
- e.exit_code, e.stdout, e.stderr))
+ e.exit_code, e.stdout, e.stderr)
+ ) from e
def reboot(self, wait=True):
"""Reboot instance."""