publish-image.yml

name: Publish image to GHCR

on:
  workflow_dispatch:
  push:
    branches:
      - main
      - ms-publish-docker

jobs:
  publish:
    name: Publish
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@d70bba72b1f3fd22344832f00baa16ece964efeb # v3.3.0

      - name: Log into GitHub Container Registry
        uses: docker/login-action@0d4c9c5ea7693da7b068278f7b52bda2a190a446 # v3.2.0
        with:
          registry: ghcr.io/guardian
          username: ${{ github.actor }}
          password: ${{ github.token }}

      - name: Build and push container image
        uses: docker/build-push-action@15560696de535e4014efeff63c48f16952e52dd1 # v6.2.0
        with:
          file: ./Dockerfile
          push: true
          tags: ghcr.io/guardian/actions-prnouncer:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max
          provenance: true