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[docker] support the lookup of images by digest (#56649)

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* [docker] images: add support for lookup by sha256 digest

Signed-off-by: Jakob Ackermann <das7pad@outlook.com>

* [tests] docker image by digest: work on a minimal test case

Signed-off-by: Jakob Ackermann <das7pad@outlook.com>

* [docker] group branch conditions per lookup

Co-Authored-By: Felix Fontein <felix@fontein.de>

* [misc] add a news fragment for the added digest lookup for docker images

Signed-off-by: Jakob Ackermann <das7pad@outlook.com>
This commit is contained in:
Jakob Ackermann 2019-05-21 08:54:06 +02:00 • committed by ansibot
parent 8e1dd58c2b
commit 3b4b2e5021
3 changed files with 49 additions and 1 deletions
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4
lib/ansible/module_utils/docker/common.py
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@ -639,10 +639,12 @@ class AnsibleDockerClient(Client):
images = response
if tag:
lookup = "%s:%s" % (name, tag)
lookup_digest = "%s@%s" % (name, tag)
images = []
for image in response:
tags = image.get('RepoTags')
if tags and lookup in tags:
digests = image.get('RepoDigests')
if (tags and lookup in tags) or (digests and lookup_digest in digests):
images = [image]
break
return images