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[CI] Use Blacksmith Docker layer caching for image builds #2

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Merged
mrubens merged 1 commit into from
Jul 8, 2026
Merged

[CI] Use Blacksmith Docker layer caching for image builds #2

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7 changes: 7 additions & 0 deletions .agent-guidance/operations/deployment.md
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7 changes: 3 additions & 4 deletions .github/workflows/CI.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -187,13 +187,12 @@ jobs:
steps:
- name: Checkout code
uses: actions/checkout@v4
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
- name: Set up Docker builder
uses: useblacksmith/setup-docker-builder@v1
- name: Build ${{ matrix.app }} Dockerfile
uses: docker/build-push-action@v6
uses: useblacksmith/build-push-action@v2
with:
context: .
file: ${{ matrix.dockerfile }}
push: false
build-args: APP_ENV=development
cache-from: type=gha,scope=${{ matrix.app }}
12 changes: 7 additions & 5 deletions .github/workflows/publish-ghcr.yml
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Expand Up @@ -176,8 +176,12 @@ jobs:
- name: Checkout code
uses: actions/checkout@v4

- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
# Blacksmith's builder mounts a persistent NVMe layer cache into the
# runner (per repo/Dockerfile/arch). Unlike type=gha caching this has
# no 10GB repo cap or per-ref scoping, and skips the multi-minute
# cache export upload at the end of every build.
- name: Set up Docker builder
uses: useblacksmith/setup-docker-builder@v1

- name: Log in to GHCR
uses: docker/login-action@v3
Expand All @@ -188,7 +192,7 @@ jobs:

- name: Build and push ${{ matrix.app }} (${{ matrix.arch }}) by digest
id: build
uses: docker/build-push-action@v6
uses: useblacksmith/build-push-action@v2
with:
context: .
file: ${{ matrix.dockerfile }}
Expand All @@ -197,8 +201,6 @@ jobs:
build-args: |
APP_ENV=${{ needs.prepare.outputs.app_env }}
RELEASE_VERSION=${{ needs.prepare.outputs.version }}
cache-from: type=gha,scope=ghcr-${{ matrix.app }}-${{ matrix.arch }}
cache-to: type=gha,mode=max,scope=ghcr-${{ matrix.app }}-${{ matrix.arch }}

- name: Export digest
shell: bash
Expand Down