add job to release docker images

.github/workflows/release.yml

@@ -4,7 +4,22 @@ on:
     tags:
       - '*'
 jobs:
-  release:
+  image:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v1
+        with:
+          always_pull: true
+          cache_froms: docker.pkg.github.com/${{ github.repository }}:latest
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+          registry: docker.pkg.github.com
+          repository: ${{ github.repository }}/gate
+          tag_with_ref: true
+          push: ${{ startsWith(github.ref, 'refs/tags/') }}
+  releaser:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout

Dockerfile

@@ -22,13 +22,10 @@ COPY pkg pkg/
 COPY gate.go ./
 
 # Build
-RUN CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -a -o gate gate.go
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o gate gate.go
 
-# Use distroless as minimal base image to package the manager binary
-# Refer to https://github.com/GoogleContainerTools/distroless for more details
+# Final image
 FROM alpine:latest
-# Need this since gate is compiled with CGO_ENABLED=1
-RUN apk add libc6-compat --no-cache
 WORKDIR /gate
 COPY --from=build /bin/grpc_health_probe bin/
 COPY --from=build /workspace/gate .

pkg/proxy/proxy.go

@@ -1,6 +1,5 @@
 package proxy
 
-import "C"
 import (
 	"context"
 	"errors"