add docker build workflow

.github/workflows/docker-image.yaml

@@ -0,0 +1,39 @@
+name: Docker Image
+
+on:
+  workflow_dispatch:
+  push:
+    branches: ["main"]
+    tags: ["v*"]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+
+      - name: Docker meta
+        id: docker_meta
+        uses: docker/metadata-action@8e5442c4ef9f78752691e2d8f8d19755c6f78e81 # v5
+        with:
+          images: ghcr.io/edgeandnode/titorelli
+          tags: |
+            type=ref,event=tag
+            type=sha
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@0d4c9c5ea7693da7b068278f7b52bda2a190a446 # v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@4f58ea79222b3b9dc2c8bbdd6debcef730109a75 # v6
+        with:
+          context: .
+          file: Dockerfile
+          pull: true
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.docker_meta.outputs.tags }}
+          labels: ${{ steps.docker_meta.outputs.labels }}