feat: add Dockerfile for goctl (#1666)

tools/goctl/Dockerfile

@@ -0,0 +1,34 @@
+FROM golang:alpine AS builder
+
+LABEL stage=gobuilder
+
+ENV CGO_ENABLED 0
+ENV GOPROXY https://goproxy.cn,direct
+
+RUN apk update --no-cache && apk add --no-cache tzdata
+RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
+RUN go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
+
+WORKDIR /build
+
+ADD go.mod .
+ADD go.sum .
+RUN go mod download
+COPY . .
+RUN go build -ldflags="-s -w" -o /app/goctl ./goctl.go
+
+
+FROM alpine
+
+RUN apk update --no-cache && apk add --no-cache protoc
+
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=builder /usr/share/zoneinfo/Asia/Shanghai /usr/share/zoneinfo/Asia/Shanghai
+COPY --from=builder /go/bin/protoc-gen-go /usr/bin/protoc-gen-go
+COPY --from=builder /go/bin/protoc-gen-go-grpc /usr/bin/protoc-gen-go-grpc
+ENV TZ Asia/Shanghai
+
+WORKDIR /app
+COPY --from=builder /app/goctl /app/goctl
+
+CMD ["./goctl"]