docker 多阶段构建测试

 

[root@localhost ~]# cat app.go 

 

package main

import "fmt"

func main() {
    var sta string = "hello word!"
    fmt.Println(sta)
}

 

[root@localhost ~]# cat Dockerfile 

 

FROM golang:latest
WORKDIR /go/src/github.com/alexellis/href-counter/
ENV GO111MODULE=on
ARG GOPROXY=https://goproxy.cn,https://mirrors.aliyun.com/goproxy/,https://goproxy.io
RUN go get -d -v golang.org/x/net/html 
COPY app.go .
ENV GO111MODULE=auto
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .

FROM alpine:latest  
RUN apk --no-cache add ca-certificates
WORKDIR /root/
COPY --from=0 /go/src/github.com/alexellis/href-counter/app .
CMD ["./app"]