fix(ci): add docker build template

.gitea/workflows/build-docker-image.yml

@@ -0,0 +1,39 @@
+name: build-docker-image
+
+on:
+  workflow_call:
+    secrets:
+      registry-user:
+        required: true
+        type: string
+      registry-password:
+        required: true
+        type: string
+
+jobs:
+  docker:
+    name: Build docker image
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login in Private Registry
+        uses: docker/login-action@v3
+        with:
+          registry: git.palkoi.net
+          username: ${{ secrets.registry-user }}
+          password: ${{ secrets.registry-password }}
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          cache-from: type=registry,ref=git.palkoi.net/${{ env.GITHUB_REPOSITORY }},mode=max
+          cache-to: type=registry,ref=git.palkoi.net/${{ env.GITHUB_REPOSITORY }},mode=max
+          push: true
+          tags: git.palkoi.net/${{ env.GITHUB_REPOSITORY }}:latest, git.palkoi.net/${{ env.GITHUB_REPOSITORY }}:${{ env.GITHUB_REF_NAME }}-${{ env.GITHUB_RUN_ID }}