🐳 Build Raspberry Pi Docker image correctly

.github/workflows/docker-images-rpi.yml

@@ -0,0 +1,28 @@
+name: Docker Image CI - Rpi
+
+on:
+  push:
+    tags:
+      - n8n@*
+
+jobs:
+  armv7_job:
+    runs-on: ubuntu-18.04
+    name: Build on ARMv7 (Rpi)
+    steps:
+      - uses: actions/checkout@v1
+      - name: Get the version
+        id: vars
+        run: echo ::set-output name=tag::$(echo ${GITHUB_REF:14})
+
+      - name: Log in to Docker registry
+        run: docker login -u ${{ secrets.DOCKER_USERNAME }} -p ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Set up Docker Buildx
+        uses: crazy-max/ghaction-docker-buildx@v1
+        with:
+          version: latest
+      - name: Run Buildx (push image)
+        if: success()
+        run: |
+          docker buildx build --platform linux/arm/v7 --build-arg N8N_VERSION=${{steps.vars.outputs.tag}} -t n8nio/n8n:${{steps.vars.outputs.tag}}-rpi --output type=image,push=true docker/images/n8n-rpi

.github/workflows/docker-images.yml

@@ -32,8 +32,3 @@ jobs:
       run: docker build --build-arg N8N_VERSION=${{steps.vars.outputs.tag}} -t n8nio/n8n:${{steps.vars.outputs.tag}}-ubuntu docker/images/n8n-ubuntu
     - name: Push Docker image of version (Ubuntu)
       run: docker push n8nio/n8n:${{steps.vars.outputs.tag}}-ubuntu
-
-    - name: Build the Docker image of version (Rpi)
-      run: docker build --build-arg N8N_VERSION=${{steps.vars.outputs.tag}} -t n8nio/n8n:${{steps.vars.outputs.tag}}-rpi docker/images/n8n-rpi
-    - name: Push Docker image of version (Rpi)
-      run: docker push n8nio/n8n:${{steps.vars.outputs.tag}}-rpi