Store repo digest as app image is pushed #770
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ndeloof
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| @@ -45,7 +45,7 @@ func runTag(bundleStore store.BundleStore, srcAppImage, destAppImage string) err | |||
| if err != nil { | |||
| return err | |||
| } | |||
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| srcRef.RepoDigest = "" | |||
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If I understand that correctly, tagging a pulled app image means we drop its repo digest? So it won't be displayed in the docker app image ls --digest column?
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I might be wrong, but IIUC repo digest won't be the same if you push under a distinct tag. So keeing this "pulled digest" for a tagged image would be wrong
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I think it should be the same repo digest, as tagging is just pushing a new descriptor, pointing to the same manifest/manifest list, but the repo digest should be the digest of the pointed object, not the pointer. cc @eunomie / @thaJeztah any idea?
also fix app image list --digests so it doesn't show "app build ID" as digest Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
Codecov Report
@@ Coverage Diff @@
## master #770 +/- ##
=========================================
- Coverage 71.32% 70.43% -0.9%
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Files 67 67
Lines 3983 3768 -215
=========================================
- Hits 2841 2654 -187
+ Misses 792 764 -28
Partials 350 350
Continue to review full report at Codecov.
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| return errors.Wrapf(err, "could not push %q", ref) | ||
| } | ||
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| // we can't just re-use bndl var here, as fixup did rewrite the bundle |
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As stated in the specs, https://github.com/cnabio/cnab-spec/blob/master/101-bundle-json.md#invocation-images
During bundle development, it may be ideal to omit the contentDigest field and/or skip validation. Once a bundle is ready to be transmitted as a thick or thin bundle, it must have a contentDigest field.
the contentDigest can be omitted, but needs to be filled before pushing. I think that's exactly what we do here, that's why the bundle is mutated by the push.
- What I did
Added repository digest as a stored info on app images (aka "bundles")
- How I did it
added a
digesttext file in bundlestore- How to verify it
docker app image pull foo@sha256:123
docker app image push myapp
- Description for the changelog
Store App Image repository Digest
- A picture of a cute animal (not mandatory)
