Public bug reported:
% tox -e citest -- run --verbose --os-name centos70 --preserve-data --data-dir
ctestout --test bugs/lp1885952-chrony
...
Command: ['lxc', 'image', 'export',
'b73b65fa3d3ce2b5aad9c22ac1c83575c15262e157db5651219318aad13cb94f',
'/tmp/cloud_test_util_9kido331']
Exit code: 1
Reason: -
Stdout:
Stderr: Error: open /var/lib/snapd/hostfs/tmp/cloud_test_util_9kido331: is a
directory
2020-07-02 17:16:24,585 -
/home/rharper/work/git/cloud-init/tests/cloud_tests/stage.py:run_stage:104
[ERROR]: traceback:
File "/home/rharper/work/git/cloud-init/tests/cloud_tests/stage.py", line 97,
in run_stage
(call_res, call_failed) = call()
File "/home/rharper/work/git/cloud-init/tests/cloud_tests/collect.py", line
169, in collect_image
with component as image:
File "/home/rharper/work/git/cloud-init/tests/cloud_tests/stage.py", line 27,
in __enter__
self.instance = self.get_func()
File
"/home/rharper/work/git/cloud-init/tests/cloud_tests/platforms/__init__.py",
line 22, in get_image
return platform.get_image(config)
File
"/home/rharper/work/git/cloud-init/tests/cloud_tests/platforms/lxd/platform.py",
line 38, in get_image
image.update_templates(self.config.get('template_overrides', {}),
File
"/home/rharper/work/git/cloud-init/tests/cloud_tests/platforms/lxd/image.py",
line 127, in update_templates
(metadata, rootfs) = self.export_image(export_dir)
File
"/home/rharper/work/git/cloud-init/tests/cloud_tests/platforms/lxd/image.py",
line 85, in export_image
subp.subp(['lxc', 'image', 'export', self.pylxd_image.fingerprint,
File "/home/rharper/work/git/cloud-init/cloudinit/subp.py", line 290, in subp
raise ProcessExecutionError(stdout=out, stderr=err,
1) lxc image export <hash> <filename> is the new format; if <filename>
is a directly like platforms/lxd/image.py provides, it fails.
The export format now writes two file
% lxc image export <hash> myimage
myimage
myimage.root
Where myimage is a tar.xz of the metadata folder and myimage.root is the
squashfs root
(crispyboi) lxd % lxc image export --verbose
e37c4d8078f197d3eabd85a9bb5a87462db54b5d6729cff63d86bdd5c312ad40 myimage.tar.xz
Image exported successfully!
(crispyboi) lxd % ls -al
total 85272
drwxrwxr-x 2 rharper rharper 4 Jul 2 12:20 .
drwxrwxrwt 49 root root 59 Jul 2 12:19 ..
-rw-rw-r-- 1 rharper rharper 844 Jul 2 12:20 myimage.tar.xz
-rw-rw-r-- 1 rharper rharper 87203840 Jul 2 12:20 myimage.tar.xz.root
(crispyboi) lxd % tar tJvf myimage.tar.xz
-rw-r--r-- root/root 686 2020-07-01 02:31 metadata.yaml
drwxr-xr-x root/root 0 2020-07-01 02:31 templates/
-rw-r--r-- root/root 189 2020-07-01 02:31 templates/hosts.tpl
-rw-r--r-- root/root 139 2020-07-01 02:31 templates/ifcfg-eth0.lxd.tpl
-rw-r--r-- root/root 45 2020-07-01 02:31 templates/network.lxd.tpl
(crispyboi) lxd % file myimage.tar.xz.root
myimage.tar.xz.root: Squashfs filesystem, little endian, version 1024.0,
compressed, 1701289756295430144 bytes, -1455882240 inodes, blocksize: 4096
bytes, created: Thu Feb 7 01:07:42 2104
The following seems to make it work:
diff --git a/tests/cloud_tests/platforms/lxd/image.py
b/tests/cloud_tests/platforms/lxd/image.py
index 8934fb74..172f83ab 100644
--- a/tests/cloud_tests/platforms/lxd/image.py
+++ b/tests/cloud_tests/platforms/lxd/image.py
@@ -82,13 +82,11 @@ class LXDImage(Image):
@return_value: tuple of path to metadata tarball and rootfs tarball
"""
# pylxd's image export feature doesn't do split exports, so use cmdline
+ outfile = output_dir + 'myimage.tar.xz'
subp.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')]
- metadata = os.path.join(
- output_dir, next(p for p in tarballs if p.startswith('meta-')))
- rootfs = os.path.join(
- output_dir, next(p for p in tarballs if not p.startswith('meta-')))
+ outfile], capture=True)
+ metadata = outfile
+ rootfs = outfile + '.root'
return (metadata, rootfs)
** Affects: cloud-init (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1886080
Title:
lxd cloud_tests fail to export images on latest/stable
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