Merge pull request #66 from traccar/v4.11

Add GitHub Actions workflow to v4.11

.github/workflows/build-push.yml

@@ -0,0 +1,54 @@
+---
+name: Build and push docker images
+
+env:
+  DOCKERHUB_REPOSITORY: traccar/traccar
+
+on:
+  push:
+    branches:
+    - master
+    - v[0-9]+.[0-9]+
+
+jobs:
+  docker-build-push:
+    name: Build and push docker images
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        base: [alpine, debian]
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v1
+    - name: Login to Docker Hub
+      uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    - name: Set environment DOCKERHUB_IMAGE_TAGS on master
+      if: github.ref == 'refs/heads/master' && matrix.base == 'alpine'
+      run: echo "DOCKERHUB_IMAGE_TAGS=$DOCKERHUB_REPOSITORY:latest" >> $GITHUB_ENV
+    - name: Set environment DOCKERHUB_IMAGE_TAGS
+      if: github.ref != 'refs/heads/master'
+      shell: bash
+      run: |
+        _BRANCH=${GITHUB_REF##*/}
+        _VERSION=${_BRANCH#v*}
+        _MAJOR_VERSION=${_VERSION%.*}
+        _DOCKERHUB_IMAGE_TAGS="$DOCKERHUB_REPOSITORY:$_VERSION-${{ matrix.base }}"
+        _DOCKERHUB_IMAGE_TAGS+=",$DOCKERHUB_REPOSITORY:$_MAJOR_VERSION-${{ matrix.base }}"
+        _DOCKERHUB_IMAGE_TAGS+=",$DOCKERHUB_REPOSITORY:${{ matrix.base }}"
+        if [ "${{ matrix.base }}" == "alpine" ]; then
+          _DOCKERHUB_IMAGE_TAGS+=",$DOCKERHUB_REPOSITORY:$_VERSION"
+          _DOCKERHUB_IMAGE_TAGS+=",$DOCKERHUB_REPOSITORY:$_MAJOR_VERSION"
+        fi
+        echo "DOCKERHUB_IMAGE_TAGS=$_DOCKERHUB_IMAGE_TAGS" >> $GITHUB_ENV
+    - name: Build and push
+      if: env.DOCKERHUB_IMAGE_TAGS != ''
+      uses: docker/build-push-action@v2
+      with:
+        file: ${{ matrix.base }}/Dockerfile
+        tags: ${{ env.DOCKERHUB_IMAGE_TAGS }}
+        push: true

README.md

@@ -10,7 +10,7 @@ DockerHub image: <https://hub.docker.com/r/traccar/traccar>
 [![](https://images.microbadger.com/badges/image/traccar/traccar:4.11.svg)](https://microbadger.com/images/traccar/traccar:4.11)
 
 ### Available tags:
-- **4.11-alpine**, **4-alpine**, **4.11**, **alpine**, **latest**
+- **4.11-alpine**, **4-alpine**, **alpine**, **4.11**, **4**, **latest**
 - **4.11-debian**, **4-debian**, **debian**
 - **4.10-alpine**, **4.10**
 - **4.10-debian**