move docker image to docker hub (#201)

Signed-off-by: ManAnRuck <github@manuelruck.de>

.github/workflows/build-docker.yaml

@@ -1,40 +1,50 @@
-name: Docker Image
+name: democracy-app.de-server/ Build and Push Docker Image
 
 on:
-  - push
+  push:
+    branches:
+      - 'master'
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - 'master'
 
 jobs:
-  build:
-    name: Build Docker
+  push:
     runs-on: ubuntu-latest
+    environment: docker
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
         with:
-          submodules: true
-
-      - name: Extract branch name
-        shell: bash
-        run: echo "##[set-output name=branch;]$(echo dev)"
-        id: extract_branch
-
-      # - name: Extract branch name
-      #   shell: bash
-      #   run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
-      #   id: extract_branch
-
-      - name: Read package.json
-        uses: tyankatsu0105/read-package-version-actions@v1
-        id: package-version
-
-      - name: Extract repository name
-        shell: bash
-        run: echo "##[set-output name=REPOSITORY_NAME;]$(echo "$GITHUB_REPOSITORY" | awk -F / '{print $2}' | sed -e "s/:refs//")"
-        id: extract_repository
-
-      - uses: docker/build-push-action@v1
+          images: democracy/democracy-server
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        if: github.event_name != 'pull_request'
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v2
         with:
-          username: ${{ github.actor }}
-          password: ${{ github.token }}
-          registry: docker.pkg.github.com
-          repository: ${{ github.repository }}/${{ steps.extract_repository.outputs.REPOSITORY_NAME }}
-          tags: ${{ steps.package-version.outputs.version }}-${{ steps.extract_branch.outputs.branch }}
+          context: .
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+      - name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}