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Pin quay.io/argoproj/argocd:v2.12.3 to sha256:68894064bc381c19ea951029510aa614bd26bf46c2ec65ea445c7d8d095a9417 to guarantee image immutability and supply-chain integrity for control-plane GitOps manifests. Partially addresses #74. Assisted-by: Gemini 3.8 Flash via GitHub Copilot Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Digest verified against live quay.io — approving
$ curl -H "Accept: application/vnd.oci.image.index.v1+json" \
https://quay.io/v2/argoproj/argocd/manifests/v2.12.3
docker-content-digest: sha256:68894064bc381c19ea951029510aa614bd26bf46c2ec65ea445c7d8d095a9417
Byte-identical to the diff. The tag is preserved alongside the digest (v2.12.3@sha256:…), which is the right form — the digest is what's enforced, the tag stays for human legibility, and they can't silently disagree because the registry rejects the pull if they do.
One line, build and unit both green, and it closes a mutable tag in a manifest that runs with cluster privileges.
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Security Hardening
Pin
quay.io/argoproj/argocd:v2.12.3to digestsha256:68894064bc381c19ea951029510aa614bd26bf46c2ec65ea445c7d8d095a9417infiles/k0s/manifests/argocd/install.yamlto prevent mutable tag drift and ensure supply-chain integrity for control-plane GitOps deployments.Addresses finding in #74.
Verification
pytest tests/unit(Passed)python3 .github/scripts/docs-checks.py(Passed)just validate(Passed)