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Tag :latest only for the newest released version #2607

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Tag :latest only for the newest released version #2607

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Tag :latest only for the newest released version.
fnando Jun 5, 2026
57da88d
Merge branch 'main' into docker-latest
fnando Jun 8, 2026
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17 changes: 15 additions & 2 deletions .github/workflows/docker.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,7 @@ jobs:
with:
ref: ${{ github.event_name == 'workflow_dispatch' && inputs.ref || github.ref }}
path: source
fetch-depth: 0

- name: Check out Dockerfile ref
uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
Expand All @@ -52,7 +53,9 @@ jobs:
path: dockerfile

# Resolve both refs to SHAs and compute Docker tags from the source ref.
# - Version tag (e.g. v1.2.3): push versioned + latest tags.
# - Highest version tag (e.g. v1.2.3): push versioned + latest tags.
# - Older version tag: push only the versioned tag, so :latest never
# moves back to an older line (e.g. a 25.x patch after 26.x ships).
# - Any other ref: push a tag for the resolved source commit SHA.
- name: Resolve refs and tags
id: resolve
Expand All @@ -65,7 +68,17 @@ jobs:

if [[ "$ref" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
version="${ref#v}"
echo "tags=-t ${REGISTRY_IMAGE}:${version} -t ${REGISTRY_IMAGE}:latest" >> $GITHUB_OUTPUT
highest="$(git -C source tag --list 'v[0-9]*.[0-9]*.[0-9]*' \
| grep -E '^v[0-9]+\.[0-9]+\.[0-9]+$' | sort -V | tail -n1)"
if [[ -z "$highest" ]]; then
echo "::error::Could not determine the highest version tag."
exit 1
fi
if [[ "$ref" == "$highest" ]]; then
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echo "tags=-t ${REGISTRY_IMAGE}:${version} -t ${REGISTRY_IMAGE}:latest" >> $GITHUB_OUTPUT
else
echo "tags=-t ${REGISTRY_IMAGE}:${version}" >> $GITHUB_OUTPUT
fi
elif [[ "${{ github.event_name }}" == "release" ]]; then
echo "::error::Release tag '${ref}' is not a valid version tag (expected vX.Y.Z)."
exit 1
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