multiarch builds.

.github/workflows/build.yml

@@ -2,10 +2,13 @@ name: "CI for builds"
 
 on:
   push:
-    branches: [ master ]
+    branches:
+      - master
+    tags:
+      - 'v*'
 
 env:
-  DOCKER_IMAGE: m1k1o/neko-rooms:latest
+  IMAGE_NAME: m1k1o/neko-rooms
 
 jobs:
   build:
@@ -15,18 +18,41 @@ jobs:
     #
     if: github.repository_owner == 'm1k1o'
     steps:
-      - name: Check Out Repo
+      -
+        name: Checkout
         uses: actions/checkout@v2
-
-      - name: Login to Docker Hub
-        run: |
-          docker login --username "${DOCKER_USERNAME}" --password-stdin "${DOCKER_REGISTRY}" <<< "${DOCKER_TOKEN}"
-        env:
-          DOCKER_REGISTRY: ${{ secrets.DOCKER_REGISTRY }}
-          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
-          DOCKER_TOKEN: ${{ secrets.DOCKER_TOKEN }}
-
-      - name: Build neko-rooms
-        run: |
-          docker build -t ${DOCKER_IMAGE} .
-          docker push ${DOCKER_IMAGE}
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      -
+        name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+      - 
+        name: Extract metadata (tags, labels) for Docker
+        uses: docker/metadata-action@v3
+        id: meta
+        with:
+          images: ${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=latest,enable=${{ endsWith(github.ref, github.event.repository.default_branch) }}
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+      - 
+        name: Log in to the Container registry
+        uses: docker/login-action@v1
+        with:
+          username: ${{ github.actor }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+      - 
+        name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          platforms: ${{ steps.buildx.outputs.platforms }}
+          push: true