+ add ckube plugin build in Dockerfile

.github/workflows/ci-pr.yaml

@@ -11,6 +11,10 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.17
       - name: golangci-lint
         if: github.event_name == 'pull_request'
         uses: golangci/golangci-lint-action@v2

Dockerfile

@@ -3,20 +3,25 @@ FROM golang:1.17-stretch as build
 
 WORKDIR /app
 
+RUN wget https://storage.googleapis.com/kubernetes-release/release/v1.23.3/bin/linux/$(uname -m | sed -E 's/x86_64/amd64/g' | sed -E 's/aarch64/arm64/g')/kubectl -O /usr/bin/kubectl && \
+    chmod +x /usr/bin/kubectl
+
 ADD go.mod .
 ADD go.sum .
 
 RUN go mod download
 
 ADD . .
 
-RUN go build -ldflags "-s -w" -o ./dist/cacheproxy cmd/cacheproxy/main.go
-
+RUN go build -ldflags "-s -w" -o ./dist/cacheproxy ./cmd/cacheproxy/main.go && \
+    go build -ldflags "-s -w" -o ./dist/kubectl-ckube ./cmd/ckube-plugin/main.go
 
 FROM ubuntu:20.04
 
 WORKDIR /app
 
+COPY --from=build /usr/bin/kubectl /usr/local/bin/
+COPY --from=build /app/dist/kubectl-ckube /usr/local/bin/
 COPY --from=build /app/dist/cacheproxy dist/cacheproxy
 
 CMD ["/app/dist/cacheproxy"]