ci: GitHub actions config for docker builds (#221)

.github/workflows/build-and-push-docker-image.yml

@@ -0,0 +1,42 @@
+name: Build and push Docker image
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  build-and-push-docker-image:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set version
+        uses: actions/github-script@v6
+        id: set-version
+        with:
+          result-encoding: string
+          script: return context.payload.release.tag_name.replace('v', '')
+
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          push: true
+          tags: |
+            ghcr.io/plankanban/planka:latest
+            ghcr.io/plankanban/planka:${{ steps.set-version.outputs.result }}

docker-compose.yml

@@ -2,7 +2,7 @@ version: '3'
 
 services:
   planka:
-    image: meltyshev/planka:latest
+    image: ghcr.io/plankanban/planka:latest
     command: >
       bash -c
         "for i in `seq 1 30`; do