Dockerfile to build a docker image with a main.go gist

Dockerfile

FROM golang:1.13.4 AS builder
ARG GIST_RAW_URL
RUN mkdir /app
RUN curl $GIST_RAW_URL  --output /app/main.go
WORKDIR /app
RUN CGO_ENABLED=0 GOOS=linux go build -o main ./...

FROM alpine:latest AS production
COPY --from=builder /app .
CMD ["./main"]

main.go

package main

import "fmt"

func main() {
	fmt.Println("Hello universe! test running the code from a gist!")
	
	person := Person{name:"Melvin"}
	person.sayName()
}

structs.go

package main 

import "fmt"

type Person struct {
  name string
}

func (person *Person) sayName() {
  fmt.Printf("Name is %s", person.name)
}

To use:

1. docker build -f Dockerfile -t go-multi-stage --build-arg GIST_RAW_URL=https://gist.githubusercontent.com/donvito/4b6d9ac37103717714f946b90bd26f5b/raw/923246357e1f3aa0e97d9158566a2021a7caafcd/main.go .

2. docker run go-multi-stage