feat(daemon): lazy image saving #1121
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Codecov Report
@@ Coverage Diff @@
## main #1121 +/- ##
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- Coverage 75.16% 75.06% -0.11%
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Files 108 108
Lines 7724 7800 +76
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+ Hits 5806 5855 +49
- Misses 1363 1380 +17
- Partials 555 565 +10
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knqyf263
changed the title
pkg/v1/daemon/image.go
Outdated
| if err := i.initialize(); err != nil { | ||
| return nil, err | ||
| } | ||
| return i.tarballImage.LayerByDigest(h) |
Collaborator
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Should be LayerByDiffID
Collaborator
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LGTM in general other than the one bug. I would like to see a test (you should be able to catch most issues by calling |
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Author
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@jonjohnsonjr Thanks for the review! I fixed the bug and added |
jonjohnsonjr
approved these changes
Sep 19, 2021
Collaborator
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Thanks! |
This was referenced Sep 21, 2021
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Fix #627
A faster way of getting an image ID is really useful for caching. We don't want to call
docker saveif we already have the image information in the cache. For example, in our case, we should skip scanning vulnerabilities of the image when the scan result exists in the cache. The cache key is an image ID, so it is enough to calldocker inspectto know only the image ID.This implementation is based on
computed()as below.go-containerregistry/pkg/v1/mutate/image.go
Line 51 in 45aaa6c
The downside is that
daemon.Imagedoesn't return an error and it might return an error when each method is called (knqyf263@881e16e).I probably should add tests, but I'd like to hear your thought on this idea before working on tests 🙇
I also want to replace
ConfigFilewith this approach in another PR because I think we can generate the config file from the result ofdocker inspectanddocker history.