Add the GitHub workflows

.github/workflows/docker-image.yml

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+name: Docker Image
+
+on:
+  push:
+    branches:
+      - 'main'
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - 'main'
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+
+    env:
+      IMAGE_NAME: ampel-controller
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.ref }}
+          # Needed for correct version detection
+          fetch-depth: 0
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: ${{ secrets.DOCKERHUB_USERNAME }}/${{ env.IMAGE_NAME }}
+          tags: |
+            # 1.2.3
+            type=semver,pattern={{version}}
+            # disabled if major zero
+            type=semver,pattern={{major}},enable=${{ !startsWith(github.ref, 'refs/tags/v0.') }}
+            # generate lates from default branch
+            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', github.event.repository.default_branch) }}
+
+      - 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: .
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

.github/workflows/pytest.yml

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+name: PyTest
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    - name: Install python
+      uses: actions/setup-python@v5
+      with:
+          python-version: '3.12'
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+
+    - name: Run tests with pytest
+      run: pytest --verbose

.github/workflows/release.yml

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+name: Create Release
+
+on:
+  push:
+    tags:
+      - "v*"
+
+jobs:
+  build:
+    name: "Release"
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Check-out"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: "Generate release changelog"
+        id: generate-release-changelog
+        uses: heinrichreimer/[email protected]
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          onlyLastTag: "true" # set to false if no tags exist (buggy with only one tag)
+          stripHeaders: "true"
+          stripGeneratorNotice: "true"
+      - name: Extract the VERSION name
+        id: get-version
+        run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/}
+      - name: "Create GitHub release"
+        uses: softprops/action-gh-release@v1
+        with:
+          tag_name: ${{ github.ref }}
+          name: "${{ steps.get-version.outputs.VERSION }}"
+          body: "${{ steps.generate-release-changelog.outputs.changelog }}"
+          prerelease: ${{ startsWith(steps.get-version.outputs.VERSION, 'v0.') }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+          draft: True