Also publish to Docker Hub

Until we are allowed to pull from ghcr.io (SET-661).

Signed-off-by: Nicolas Bock <nicolas.bock@canonical.com>

.github/workflows/docker-publish.yaml

@@ -0,0 +1,89 @@
+name: Publish to Docker Hub
+
+on:
+  schedule:
+    - cron: '31 13 * * *'
+  push:
+    branches: [ "main" ]
+    tags: [ 'v*.*.*' ]
+  pull_request:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+env:
+  REGISTRY: docker.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Install cosign
+        if: github.event_name != 'pull_request'
+        uses: sigstore/cosign-installer@v3
+        with:
+          cosign-release: 'v2.1.1'
+
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.22"
+
+      - name: Test and Build
+        run: make all
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log into registry ${{ env.REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Docker metadata - processor
+        id: processor_meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/athena-processor
+
+      - name: Build and publish Docker - processor
+        id: processor-build-and-push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./cmd/processor/Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.processor_meta.outputs.tags }}
+          labels: ${{ steps.processor_meta.outputs.labels }}
+
+      - name: Extract Docker metadata - monitor
+        id: monitor_meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}/athena-monitor
+
+      - name: Build and publish Docker - monitor
+        id: monitor_build-and-push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./cmd/monitor/Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.monitor_meta.outputs.tags }}
+          labels: ${{ steps.monitor_meta.outputs.labels }}

.github/workflows/ghcr-publish.yaml

@@ -4,21 +4,19 @@ on:
   schedule:
     - cron: '38 11 * * *'
   push:
-    branches: ["main"]
-    # Publish semver tags as releases.
-    tags: ['v*.*.*']
+    branches: [ "main" ]
+    tags: [ 'v*.*.*' ]
   pull_request:
-    branches: ["main"]
+    branches: [ "main" ]
   workflow_dispatch:
 
 env:
-  # Use docker.io for Docker Hub if empty
   REGISTRY: ghcr.io
-  # github.repository as <account>/<repo>
   IMAGE_NAME: ${{ github.repository }}
 
 jobs:
   build:
+
     runs-on: ubuntu-latest
     permissions:
       contents: read
@@ -38,7 +36,7 @@ jobs:
       - name: Test and Build
         run: make all
 
-      - name: Setup Docker buildx
+      - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
       - name: Setup QEMU