Add Docker build pipeline

.github/workflows/go.yml → .github/workflows/build.yml

@@ -19,3 +19,5 @@ jobs:
       run: go build -v ./...
     - name: Test
       run: go test -v ./...
+    - name: Local docker build
+      run: docker build . -t attache

.github/workflows/docker-release.yml

@@ -0,0 +1,41 @@
+name: docker
+
+on:
+  push:
+    tags:
+      - "*"
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: datadog/attache
+
+permissions:
+  contents: read
+
+jobs:
+  docker-build-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Log into registry ${{ env.REGISTRY }}
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref_name }}
+            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest

Dockerfile

@@ -0,0 +1,10 @@
+FROM golang:1.22-alpine AS builder
+WORKDIR /build
+RUN apk add --update make
+ADD . /build
+RUN make attache
+
+FROM golang:1.22-alpine AS runner
+LABEL org.opencontainers.image.source="https://github.com/DataDog/attache/"
+COPY --from=builder /build/attache /attache
+ENTRYPOINT ["/attache"]