102 lines
3.4 KiB
YAML
102 lines
3.4 KiB
YAML
name: Build Docker Image
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on:
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push:
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branches: [main]
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paths:
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- docker-compose.yaml
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workflow_dispatch:
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jobs:
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docker:
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name: Build & Push Docker Image
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runs-on: linux-amd64
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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with:
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fetch-depth: 0
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- name: Detect image version change
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id: image
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shell: bash
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run: |
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extract_image() {
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grep -E '^[[:space:]]*image:[[:space:]]+' "$1" \
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| head -n1 \
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| awk '{ print $2 }' \
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| sed 's/^["'\'']//; s/["'\'']$//'
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}
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CURRENT_IMAGE="$(extract_image docker-compose.yaml)"
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if [ -z "$CURRENT_IMAGE" ]; then
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echo "::error::No image found in docker-compose.yaml"
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exit 1
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fi
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OLD_IMAGE=""
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if [ "${{ github.event_name }}" = "push" ] && [ -n "${{ github.event.before }}" ]; then
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if git cat-file -e "${{ github.event.before }}:docker-compose.yaml" 2>/dev/null; then
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git show "${{ github.event.before }}:docker-compose.yaml" > /tmp/docker-compose.previous.yaml
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OLD_IMAGE="$(extract_image /tmp/docker-compose.previous.yaml || true)"
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fi
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fi
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IMAGE_BASE="${CURRENT_IMAGE%:*}"
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IMAGE_TAG="${CURRENT_IMAGE##*:}"
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REGISTRY="${CURRENT_IMAGE%%/*}"
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if [ "$IMAGE_TAG" = "$CURRENT_IMAGE" ] || [ -z "$IMAGE_TAG" ]; then
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echo "::error::Image must include an explicit tag, e.g. git.techniverse.net/scriptos/sinusbot:1.1"
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exit 1
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fi
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CHANGED="false"
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if [ "${{ github.event_name }}" = "workflow_dispatch" ] || [ "$CURRENT_IMAGE" != "$OLD_IMAGE" ]; then
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CHANGED="true"
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fi
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echo "current_image=$CURRENT_IMAGE"
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echo "old_image=${OLD_IMAGE:-<none>}"
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echo "changed=$CHANGED"
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echo "changed=$CHANGED" >> "$GITHUB_OUTPUT"
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echo "image=$CURRENT_IMAGE" >> "$GITHUB_OUTPUT"
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echo "image_base=$IMAGE_BASE" >> "$GITHUB_OUTPUT"
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echo "tag=$IMAGE_TAG" >> "$GITHUB_OUTPUT"
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echo "registry=$REGISTRY" >> "$GITHUB_OUTPUT"
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- name: Stop when image version did not change
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if: steps.image.outputs.changed != 'true'
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run: echo "Image version unchanged. Skipping Docker build."
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- name: Login to Gitea Container Registry
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if: steps.image.outputs.changed == 'true'
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uses: docker/login-action@v3
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with:
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registry: ${{ steps.image.outputs.registry }}
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username: ${{ secrets.REGISTRY_USER }}
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password: ${{ secrets.REGISTRY_TOKEN }}
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- name: Set up Docker Buildx
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if: steps.image.outputs.changed == 'true'
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uses: docker/setup-buildx-action@v3
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- name: Build and push Docker image
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if: steps.image.outputs.changed == 'true'
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uses: docker/build-push-action@v6
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with:
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context: .
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platforms: linux/amd64
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push: true
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provenance: false
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tags: |
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${{ steps.image.outputs.image }}
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${{ steps.image.outputs.image_base }}:latest
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labels: |
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org.opencontainers.image.title=Sinusbot
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org.opencontainers.image.version=${{ steps.image.outputs.tag }}
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org.opencontainers.image.source=${{ github.server_url }}/${{ github.repository }}
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org.opencontainers.image.licenses=MIT
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