├── Healthcheck
    ├── docker-compose.yml
    └── healthcheck.sh
└── Optimization
    └── GO
        └── helloworld-multistage
            ├── Dockerfile-alpine
            ├── Dockerfile-before
            ├── Dockerfile-multistage
            ├── README.md
            ├── docker-compose.yml
            ├── images
                ├── README.md
                ├── golang-18.png
                ├── golang-alpine.png
                └── golang-multistage.png
            └── main.go


/Healthcheck/docker-compose.yml:
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 1 | services:
 2 |   nginx:
 3 |     image: nginx:alpine
 4 |     container_name: nginx
 5 |     restart: always
 6 |     volumes:
 7 |       - ./healthcheck.sh:/bin/healthcheck.sh
 8 |     healthcheck:
 9 |       test: ['CMD', '/bin/healthcheck.sh']
10 |       interval: 10s
11 |       timeout: 5s
12 |       retries: 3
13 |     ports:
14 |       - '80:80'
15 | 


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/Healthcheck/healthcheck.sh:
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1 | #!/bin/sh
2 | 
3 | URL=http://localhost/
4 | 
5 | RESPONSE=$(curl -s -o /dev/null -w '%{http_code}\n' "$URL")
6 | 
7 | [ "$RESPONSE" = "200" ] && exit 0 || exit 1


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/Optimization/GO/helloworld-multistage/Dockerfile-alpine:
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1 | # this  image size is  300 MG 
2 | FROM golang:alpine
3 | 
4 | WORKDIR /go/src/app
5 | RUN go mod init
6 | COPY main.go .
7 | RUN go build -o webserver . 
8 | CMD ["./webserver"]
9 | 


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/Optimization/GO/helloworld-multistage/Dockerfile-before:
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1 | #This image size is 719MB
2 | FROM golang:1.8
3 | 
4 | WORKDIR /go/src/app
5 | COPY main.go .
6 | RUN go build -o webserver .
7 | CMD ["./webserver"]
8 | 
9 | 


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/Optimization/GO/helloworld-multistage/Dockerfile-multistage:
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 1 | #This image size is 11.9 MG
 2 | 
 3 | FROM golang:alpine as builder
 4 | 
 5 | WORKDIR /go/src/app
 6 | COPY main.go .
 7 | RUN go mod init
 8 | RUN go build -o webserver .
 9 | 
10 | FROM alpine
11 | WORKDIR /app
12 | COPY --from=builder /go/src/app/ /app
13 | CMD ["./webserver"]
14 | 


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/Optimization/GO/helloworld-multistage/README.md:
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1 | 
2 | docker build -t hello:1 . 
3 | 
4 | docker images | grep hello
5 | 
6 |  docker run -itd  -p 8010:8080 hello:3
7 | 


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/Optimization/GO/helloworld-multistage/docker-compose.yml:
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1 | version: "3"
2 | services:
3 |   hellow:
4 |     image: hello:3
5 |     container_name: hello-go
6 |     ports:
7 |     - 80:8080
8 | 


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/Optimization/GO/helloworld-multistage/images/README.md:
--------------------------------------------------------------------------------
1 | 
2 | 


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/Optimization/GO/helloworld-multistage/images/golang-18.png:
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https://raw.githubusercontent.com/farshadnick/docker-tutorial/209bf71fc80b713a3407e344160c8f07dd2248f7/Optimization/GO/helloworld-multistage/images/golang-18.png


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/Optimization/GO/helloworld-multistage/images/golang-alpine.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/farshadnick/docker-tutorial/209bf71fc80b713a3407e344160c8f07dd2248f7/Optimization/GO/helloworld-multistage/images/golang-alpine.png


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/Optimization/GO/helloworld-multistage/images/golang-multistage.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/farshadnick/docker-tutorial/209bf71fc80b713a3407e344160c8f07dd2248f7/Optimization/GO/helloworld-multistage/images/golang-multistage.png


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/Optimization/GO/helloworld-multistage/main.go:
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 1 | package main
 2 | import(
 3 |   "fmt"
 4 |   "log"
 5 |   "net/http"
 6 | )
 7 | func handler(w http.ResponseWriter, r *http.Request){
 8 |   fmt.Fprintf(w,"Hello from the webserver")
 9 | }
10 | func main(){
11 |   http.HandleFunc("/",handler)
12 |   log.Fatal(http.ListenAndServe("0.0.0.0:8080", nil))
13 | }
14 | 


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