adding Dockerfile.

.github/workflows/build.yaml

@@ -2,7 +2,12 @@ name: CI
 # This workflow is triggered on pushes & pull requests
 on: [push, pull_request]
 
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
 jobs:
+
   build:
     name: Build
     runs-on: ubuntu-latest
@@ -22,3 +27,43 @@ jobs:
           go mod vendor
           go test -race -coverprofile=coverage.txt -covermode=atomic -v -tags "static" $(go list ./... | grep -v /vendor/)
 
+  docker:
+    name: Docker
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+      # Login against a Docker registry except on PR
+      # https://github.com/docker/login-action
+      - name: Log into registry ${{ env.REGISTRY }}
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@28218f9b04b4f3f62068d7b6ce6ca5b26e35336c
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      # Extract metadata (tags, labels) for Docker
+      # https://github.com/docker/metadata-action
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          tags: |
+            latest=auto
+            type=ref,enable=true,event=branch
+
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      # Build and push Docker image with Buildx (don't push on PR)
+      # https://github.com/docker/build-push-action
+      - name: Build and push Docker image
+        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        with:
+          context: .
+          file: docker/Dockerfile.collector
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -0,0 +1,12 @@
+FROM ghcr.io/packagrio/packagr:latest-golang AS builder
+WORKDIR /go/src/github.com/analogj/hatchet
+COPY . .
+
+RUN go mod vendor && \
+    go build -ldflags="-extldflags=-static" -o hatchet-linux-amd64 -tags "static,netgo" $(go list ./cmd/...)
+
+FROM scratch
+# copy the ca-certificate.crt from the build stage
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=builder /go/src/github.com/analogj/hatchet/hatchet-linux-amd64 /hatchet
+ENTRYPOINT ["/hatchet"]