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Skip build when image already exists and tag by external repo SHA

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This commit is contained in:
estebanthi
2026-03-26 14:49:11 +01:00
parent a5e252b3b1
commit afb5bf2bc8
1 changed files with 40 additions and 0 deletions
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40
.github/workflows/docker-build-publish.yml vendored
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@@ -58,6 +58,13 @@ on:
type: string type: string
default: "" default: ""
skip_if_tag_exists:
description: >
If true, skip build when all images already have sha-<commit> tags.
required: false
type: string
default: "false"
env: env:
description: > description: >
Multiline env vars, one per line: KEY=VALUE Multiline env vars, one per line: KEY=VALUE
@@ -147,6 +154,9 @@ jobs:
IMAGES: ${{ inputs.images }} IMAGES: ${{ inputs.images }}
BUILD_ARGS: ${{ inputs.build_args }} BUILD_ARGS: ${{ inputs.build_args }}
EXTRA_TAGS_INPUT: ${{ inputs.extra_tags }} EXTRA_TAGS_INPUT: ${{ inputs.extra_tags }}
CHECKOUT_REPO: ${{ inputs.checkout_repo }}
CHECKOUT_PATH: ${{ inputs.checkout_path }}
SKIP_IF_TAG_EXISTS: ${{ inputs.skip_if_tag_exists }}
CI_TOKEN: ${{ secrets.ci_token }} CI_TOKEN: ${{ secrets.ci_token }}
TRIVY_SEVERITY: ${{ inputs.trivy_severity }} TRIVY_SEVERITY: ${{ inputs.trivy_severity }}
run: | run: |
@@ -176,8 +186,38 @@ jobs:
RAW_REF="${{ github.ref }}" RAW_REF="${{ github.ref }}"
SHA_FULL="${{ github.sha }}" SHA_FULL="${{ github.sha }}"
SOURCE_SHA_FULL="$SHA_FULL"
if [ -n "$CHECKOUT_REPO" ] && [ -d "$CHECKOUT_PATH/.git" ]; then
SOURCE_SHA_FULL=$(git -C "$CHECKOUT_PATH" rev-parse HEAD)
fi
SHA_FULL="$SOURCE_SHA_FULL"
SHA_SHORT="${SHA_FULL:0:12}" SHA_SHORT="${SHA_FULL:0:12}"
truthy() {
case "${1,,}" in
1|true|yes|y|on) return 0;;
*) return 1;;
esac
}
if truthy "$SKIP_IF_TAG_EXISTS"; then
missing=0
while read -r img; do
IMAGE_NAME=$(echo "$img" | jq -r '.name')
FULL_IMAGE="${{ inputs.registry_host }}/$IMAGE_NAME"
if docker manifest inspect "$FULL_IMAGE:sha-$SHA_SHORT" >/dev/null 2>&1; then
echo "==== Found existing tag $FULL_IMAGE:sha-$SHA_SHORT ===="
else
echo "==== Missing tag $FULL_IMAGE:sha-$SHA_SHORT (will build) ===="
missing=1
fi
done < <(echo "$IMAGES" | jq -c '.[]')
if [ "$missing" -eq 0 ]; then
echo "All images already have sha-$SHA_SHORT tag. Skipping build."
exit 0
fi
fi
VERSION_TAGS=() VERSION_TAGS=()
if [[ "$RAW_REF" =~ ^refs/tags/v([0-9]+)\.([0-9]+)\.([0-9]+)$ ]]; then if [[ "$RAW_REF" =~ ^refs/tags/v([0-9]+)\.([0-9]+)\.([0-9]+)$ ]]; then
VERSION_TAGS+=("v${BASH_REMATCH[1]}.${BASH_REMATCH[2]}.${BASH_REMATCH[3]}") VERSION_TAGS+=("v${BASH_REMATCH[1]}.${BASH_REMATCH[2]}.${BASH_REMATCH[3]}")