name: github actions custom image publisher
on:
push:
branches: ["ci-image"]
permissions:
contents: read
packages: write
jobs:
publish:
runs-on: ubuntu-24.04
env:
IMAGE_CONTEXT: "./ci/github-actions/"
DOCKER_FILE: "./ci/github-actions/Dockerfile"
LOCAL_IMAGE_TAG: "ci-builder:local"
steps:
- uses: actions/checkout@v4
- uses: docker/login-action@v3
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}
- name: Set up Buildx
id: buildx
uses: docker/setup-buildx-action@v3
with:
driver: docker-container
- name: Build (load only)
uses: docker/build-push-action@v6
with:
builder: ${{ steps.buildx.outputs.name }}
context: ${{ env.IMAGE_CONTEXT }}
file: ${{ env.DOCKER_FILE }}
load: true
tags: ${{ env.LOCAL_IMAGE_TAG }}
cache-from: type=gha
cache-to: type=gha,mode=max
build-args: |
SERENA_TAG=v0.1.4
- name: Smoke test
run: |
docker run --rm "${LOCAL_IMAGE_TAG}" cargo --version
docker run --rm "${LOCAL_IMAGE_TAG}" cargo deny --version
docker run --rm "${LOCAL_IMAGE_TAG}" mdbook --help >/dev/null
- name: publish
id: build
uses: docker/build-push-action@v6
with:
builder: ${{ steps.buildx.outputs.name }}
context: ${{ env.IMAGE_CONTEXT }}
file: ${{ env.DOCKER_FILE }}
push: true
tags: |
ghcr.io/${{ github.repository_owner }}/ci-builder:ci-image
ghcr.io/${{ github.repository_owner }}/ci-builder:sha-${{ github.sha }}
cache-from: type=gha
cache-to: type=gha,mode=max
build-args: |
SERENA_TAG=v0.1.4
- name: Show digest
run: echo "digest=${{ steps.build.outputs.digest }}"