github workflow automaticaly build images for mayor platforms

.github/workflows/docker.yml

@@ -0,0 +1,44 @@
+name: 'Build and publish docker images (all platforms)'
+
+on:
+  push:
+    branches:
+      - '!*'
+    tags:
+      - '*'
+    pull_request:
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Docker meta
+        id: docker_meta
+        uses: crazy-max/ghaction-docker-meta@v1
+        with:
+          images: ${{ secrets.DOCKERHUB_IMAGE }}  # list of Docker images to use as base name for tags
+          tag-sha: false            # add git short SHA as Docker tag, e.g.: sha-12affe0
+          tag-latest: true         # disabled here for demonstration purposes
+          tag-semver: | 
+            {{major}}.{{minor}}.{{patch}}
+      - 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
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64,linux/arm64,linux/arm/v7,linux/arm/v6
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.docker_meta.outputs.tags }}
+          labels: ${{ steps.docker_meta.outputs.labels }}

Dockerfile

@@ -1,6 +1,6 @@
 FROM python:3.9.0-slim
 
-ENV APP_VERSION="5.1.0" \
+ENV APP_VERSION="5.1.1" \
     APP="platformio-core"
 
 LABEL app.name="${APP}" \