feat: upload image to Digital Ocean

.github/workflows/docker-image.yml

@@ -0,0 +1,45 @@
+name: Build and Push op-geth
+
+on:
+  push:
+    branches:
+      - optimism
+
+env:
+  REGISTRY: "registry.digitalocean.com/sigil"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Build container image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: false
+          tags: ${{ env.REGISTRY }}/op-geth:${{ github.sha }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Install doctl
+        uses: digitalocean/action-doctl@v2
+        with:
+          token: ${{ secrets.DIGITALOCEAN_ACCESS_TOKEN }}
+
+      - name: Log in to DO Container Registry
+        run: doctl registry login --expiry-seconds 1200
+
+      - name: Push image to DO Container Registry
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: |
+            ${{ env.REGISTRY }}/op-geth:${{ github.sha }}
+            ${{ env.REGISTRY }}/op-geth:latest