ci(): push to dockerhub + automatic release

.github/workflows/docker-image.yml

@@ -0,0 +1,58 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Get semantic release info
+      id: semantic_release_info
+      uses: jossef/action-semantic-release-info@v1
+      env:
+        GITHUB_TOKEN: ${{ github.token }}
+
+    - name: Build the Docker image
+      run: docker build . --file Dockerfile --tag dustico/dusti-lock:${{ steps.semantic_release_info.outputs.git_tag }}
+
+    - name: Tag version
+      run: |
+        git config --local user.email "action@github.com"
+        git config --local user.name "GitHub Action"
+        git tag ${{ steps.semantic_release_info.outputs.git_tag }}
+
+    - name: Push changes
+      uses: ad-m/github-push-action@v0.6.0
+      with:
+        github_token: ${{ github.token }}
+        tags: true
+
+    - name: Create GitHub release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ github.token }}
+      with:
+        tag_name: ${{ steps.semantic_release_info.outputs.git_tag }}
+        release_name: ${{ steps.semantic_release_info.outputs.git_tag }}
+        body: ${{ steps.semantic_release_info.outputs.notes }}
+        draft: false
+        prerelease: false
+
+    - name: Docker login
+      env:
+        DOCKER_USER: ${{secrets.DOCKER_USER}}
+        DOCKER_PASSWORD: ${{secrets.DOCKER_PASSWORD}}
+      run: |
+        docker login -u $DOCKER_USER -p $DOCKER_PASSWORD 
+      
+    - name: Docker push
+      run: docker push dustico/dusti-lock