Fix image name parsing with tag and digest #4406

cronik · 2022-01-19T22:38:46Z

Image names may contain both tag name and digest. For example
nginx:1.21.5@sha256:7826426c9d8d310c62fc68bcd5e8dde70cb39d4fbbd30eda3b1bd03e35fbde29. Kustomizations with image transforms will not match
these image because the image parser assumes either a tag or digest, but not
both.

For a real life example of kuberenetes deployments that might need to perform
these types of transforms is from the tekton-pipelines project (see the release.yaml).

k8s-ci-robot · 2022-01-19T22:38:48Z

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linux-foundation-easycla · 2022-01-19T22:38:48Z

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✅ Kyle Cronin (678bc0c)

k8s-ci-robot · 2022-01-19T22:38:53Z

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k8s-ci-robot · 2022-01-19T22:38:54Z

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Image names may contain both tag name and digest. For example `nginx:1.21.5@sha256:7826426c9d8d310c62fc68bcd5e8dde70cb39d4fbbd30eda3b1bd03e35fbde29`. Kustomizations with image transforms will not match these image because the image parser assumes either a tag or digest, but not both. For a real life example of kuberenetes deployments that might need to perform these types of transforms is from the [tekton-pipelines](https://github.com/tektoncd/pipeline) project (see the release.yaml).

cronik · 2022-01-20T15:13:44Z

I signed it

jarias-lfx · 2022-01-20T15:42:03Z

/check-cla

natasha41575 · 2022-01-21T19:58:48Z

/ok-to-test

natasha41575 · 2022-01-21T20:02:44Z

api/image/image.go

@@ -24,24 +24,31 @@ func IsImageMatched(s, t string) bool {
 func Split(imageName string) (name string, tag string) {


Can we change this method to return three things - a name, tag, and digest? Below in one of the tests I see tag: :1.2.3@sha256:12345 which doesn't seem correct. We should differentiate the tag and digest where possible to help support cases where there are both.

natasha41575 · 2022-01-21T20:04:09Z

api/image/image_test.go

+			testName: "with domain",
+			value:    "docker.io/nginx:1.2.3",
+			name:     "docker.io/nginx",
+			tag:      ":1.2.3",


IMO it doesn't make sense to include the leading colon in the split. The tag is "1.2.3". Could you change that?

natasha41575 · 2022-01-21T20:05:07Z

api/image/image_test.go

 			name:     "nginx",
-			tag:      "@12345",
+			tag:      "@sha256:12345",


Aligned with the above suggestion to change the Split function to return the tag and digest separately, I'd like to see this test look like the following:

testName: "with digest", value: "nginx@sha256:12345", name: "nginx", digest: "sha256:12345"

k8s-ci-robot · 2022-01-22T17:39:39Z

@cronik: This PR has multiple commits, and the default merge method is: merge.
You can request commits to be squashed using the label: tide/merge-method-squash

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cronik · 2022-01-22T17:56:52Z

@natasha41575 updated Split to return digest and remove the delimiter prefixes from the returned values.

image.Split now returns 3 fields: name, tag, and digest. The tag and digest fields no longer include their respective delimiters (`:` and `@`).

cronik · 2022-01-26T00:38:49Z

@natasha41575 I had to make a few commit to resolve merge conflicts, may want to add the label tide/merge-method-squash

natasha41575

Mostly looking good, couple of minor comments

api/filters/imagetag/updater.go

api/image/image.go

natasha41575 · 2022-01-26T02:35:56Z

/lgtm

natasha41575 · 2022-02-16T16:49:14Z

/approve

k8s-ci-robot · 2022-02-16T16:49:45Z

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This pull-request has been approved by: cronik, natasha41575

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k8s-ci-robot added the cncf-cla: no Indicates the PR's author has not signed the CNCF CLA. label Jan 19, 2022

k8s-ci-robot added the needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. label Jan 19, 2022

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k8s-ci-robot requested review from KnVerey and natasha41575 January 19, 2022 22:39

cronik force-pushed the bugfix/image-tag-parsing branch from 678bc0c to 7a3c426 Compare January 20, 2022 14:55

k8s-ci-robot added cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. and removed cncf-cla: no Indicates the PR's author has not signed the CNCF CLA. labels Jan 20, 2022

cronik changed the title ~~Fix image name parsing with name and digest~~ Fix image name parsing with tag and digest Jan 21, 2022

k8s-ci-robot added ok-to-test Indicates a non-member PR verified by an org member that is safe to test. and removed needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. labels Jan 21, 2022

natasha41575 reviewed Jan 21, 2022

View reviewed changes

Return digest property from image name parser

727093f

image.Split now returns 3 fields: name, tag, and digest. The tag and digest fields no longer include their respective delimiters (`:` and `@`).

cronik force-pushed the bugfix/image-tag-parsing branch from 286bb9f to 727093f Compare January 22, 2022 23:58

cronik and others added 2 commits January 25, 2022 19:23

Merge branch 'master' into bugfix/image-tag-parsing

a62a229

Fix merge file indentation

1bac439

natasha41575 reviewed Jan 26, 2022

View reviewed changes

api/filters/imagetag/updater.go Show resolved Hide resolved

api/image/image.go Show resolved Hide resolved

natasha41575 added the tide/merge-method-squash Denotes a PR that should be squashed by tide when it merges. label Jan 26, 2022

Refactor imagetag updater string builder

11d585e

k8s-ci-robot assigned natasha41575 Jan 26, 2022

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k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Feb 16, 2022

k8s-ci-robot merged commit 8dab949 into kubernetes-sigs:master Feb 16, 2022

natasha41575 mentioned this pull request Jul 15, 2022

kustomize edit set image should correctly parse both tag and digest #4713

Open

yuwenma mentioned this pull request Aug 29, 2022

feat: refactor set-image with go sdk GoogleContainerTools/kpt-functions-catalog#904

Merged

This was referenced Sep 7, 2022

bump of kustomize version from 4.4.1 to 4.5.X argoproj/argo-cd#10540

Closed

Upgrade Kustomize to >= 4.5.6 to mitigate CVE-2021-29923 and fix bugs argoproj/argo-cd#10533

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obs-gh-danielmartin mentioned this pull request Apr 18, 2024

Using digest and newTag outputs both when docs indicate newTag is ignored #5664

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Fix image name parsing with tag and digest #4406

Fix image name parsing with tag and digest #4406

cronik commented Jan 19, 2022

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		@@ -24,24 +24,31 @@ func IsImageMatched(s, t string) bool {
		func Split(imageName string) (name string, tag string) {

Fix image name parsing with tag and digest #4406

Fix image name parsing with tag and digest #4406

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