chore: Automate docker image build

.github/workflows/docker-build.yml

@@ -0,0 +1,58 @@
+name: docker-build
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - "v*"
+  pull_request:
+
+jobs:
+  docker:
+    runs-on: docker
+    steps:
+      - name: Install Docker
+        run: |
+          apt-get update
+          apt-get install -y ca-certificates curl
+          install -m 0755 -d /etc/apt/keyrings
+          curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
+          chmod a+r /etc/apt/keyrings/docker.asc
+          echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
+          apt-get update
+          apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          registry: git.dominikstahl.dev
+          username: ${{ secrets.DOER }}
+          password: ${{ secrets.TOKEN }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push (pull_request)
+        uses: docker/build-push-action@v6
+        if: github.event_name == 'pull_request'
+        with:
+          push: true
+          tags: ${{ github.repository }}:sha_${{ github.sha }},${{ github.repository }}:pr_${{ github.head_ref }}
+
+      - name: Build and push (push_tag)
+        uses: docker/build-push-action@v6
+        if: github.event_name == 'push' && github.ref_type == 'tag'
+        with:
+          push: true
+          tags: ${{ github.repository }}:${{ github.ref_name }},${{ github.repository }}:latest
+
+      - name: Build and push (push_branch)
+        uses: docker/build-push-action@v6
+        if: github.event_name == 'push' && github.ref_type == 'branch'
+        with:
+          push: true
+          tags: ${{ github.repository }}:sha_${{ github.sha }},${{ github.repository }}:main