GHA workflow to Docker ghcr.io

.github/workflows/master-latest.yml

@@ -0,0 +1,56 @@
+name: master-latest
+
+on:
+  push:
+    branches: [ "master" ]
+  #schedule:
+  #  - cron: '0 3 * * *' # Scheduled runs every day at 3am UTC
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v2
+
+      #- name: Log in to Docker Hub
+      #  uses: docker/login-action@v2
+      #  with:
+      #    username: ${{ secrets.DOCKER_USERNAME }}
+      #    password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Docker Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }} # github username or org
+          password: ${{ secrets.GITHUB_TOKEN }}    # github actions builtin token. repo has to have pkg access.
+
+      - name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64 #,linux/arm64
+          pull: true # avoid bitrot with repeated cache hits
+          push: true
+          tags: ghcr.io/${{ github.repository_owner }}/ansi-hastebin:latest
+          labels: |
+            org.opencontainers.image.title=ansi-hastebin
+            org.opencontainers.image.description=${{ github.event.repository.description }}
+            org.opencontainers.image.url=${{ github.event.repository.html_url }}
+            org.opencontainers.image.source=${{ github.event.repository.clone_url }}
+            org.opencontainers.image.revision=${{ github.sha }}
+            org.opencontainers.image.licenses=${{ github.event.repository.license.spdx_id }}
+          cache-from: type=gha # all-automatic Github Actions caching
+          cache-to: type=gha,mode=max
+