Build and push tagged images to quay

.github/workflows/docker.yml

@@ -0,0 +1,48 @@
+on:
+  pull_request:
+  push:
+    branches: [main]
+    tags: ["v*"]
+
+name: docker
+
+jobs:
+  docker_buildx:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Setup | Cancel Previous Runs
+        uses: styfle/[email protected]
+        with:
+          access_token: ${{ github.token }}
+
+      - name: Setup | Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Setup | Docker
+        uses: docker/setup-buildx-action@v2
+        with:
+          platforms: linux/amd64,linux/arm64
+
+      - name: Setup | Quay.io
+        uses: docker/login-action@v2
+        with:
+          registry: quay.io
+          username: ${{ secrets.QUAY_MINER_USER }}
+          password: ${{ secrets.QUAY_MINER_UPLOAD_TOKEN }}
+
+      - name: Setup | Image Tag
+        if: github.event_name != 'pull_request'
+        run: echo "image_tag=$(git describe)" >> $GITHUB_ENV
+
+      # We publish all builds to the test-images repo.
+      - name: Build | Test Image
+        uses: docker/build-push-action@v3
+        with:
+          push: true
+          platforms: linux/amd64,linux/arm64
+          labels: VERSION=${{ env.image_tag }}
+          tags: quay.io/team-helium/test-images:virtual-lorawan-device-${{ env.image_tag }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max