├── Dockerfile
├── Makefile
├── README.md
└── main.go


/Dockerfile:
--------------------------------------------------------------------------------
1 | FROM golang:1.10-alpine as builder
2 | ADD main.go /go/src/goapp/
3 | RUN cd /go/src/goapp/ && \
4 |     CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main .
5 | 
6 | FROM scratch
7 | COPY --from=builder /go/src/goapp/main /
8 | # ENTRYPOINT ["/main"]
9 | CMD ["/main"]


--------------------------------------------------------------------------------
/Makefile:
--------------------------------------------------------------------------------
1 | build:
2 | 	docker build -t adolphlwq/goapp .


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Minimal Golang App
 2 | >This repo aims to explore how to build minimal runtime for golang application.
 3 | 
 4 | The final docker image size is:
 5 | ```shell
 6 | docker images | grep goapp
 7 | adolphlwq/goapp latest  b2b7723296db    25 seconds ago       2.01MB
 8 | ```
 9 | 
10 | ## Requisites
11 | - Docker 17.05 or higher
12 | - CMake
13 | 
14 | ## Dockerfile
15 | ```dockerfile
16 | FROM golang:1.10-alpine as builder
17 | ADD main.go /go/src/goapp/
18 | RUN cd /go/src/goapp/ && \
19 |     CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main .
20 | 
21 | FROM scratch
22 | COPY --from=builder /go/src/goapp/main /
23 | CMD ["/main"]
24 | ```
25 | 
26 | ## Reference
27 | - [Build minimal docker container for go applications](https://blog.codeship.com/building-minimal-docker-containers-for-go-applications/)
28 | 


--------------------------------------------------------------------------------
/main.go:
--------------------------------------------------------------------------------
1 | package main
2 | 
3 | import "fmt"
4 | 
5 | func main() {
6 | 	fmt.Println("go minimal docker apps")
7 | }
8 | 


--------------------------------------------------------------------------------