Merge pull request #185 from blocknative/ghcr

add ghcr build

.github/workflows/build.yml

@@ -0,0 +1,62 @@
+name: Docker Build for GHCR
+on:
+  workflow_dispatch:
+    inputs:
+      image_tag:
+        description: "Tag for docker image"
+        required: false
+  release:
+    types: [created]
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push:
+    permissions:
+      contents: read
+      packages: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Set IMAGE_TAG
+        run: |
+          if [ "${{ github.event_name }}" != "workflow_dispatch" ]; then
+            echo "IMAGE_TAG=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
+          else
+            echo "IMAGE_TAG=${{ github.event.inputs.image_tag }}" >> $GITHUB_ENV
+          fi
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=${{ env.IMAGE_TAG }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          provenance: false