Tiny docker image and go runtime

README.md

1. Vendor

go get github.com/gorilla/mux
godep save -r

2. Build binary

docker run --rm -it -v "$GOPATH":/gopath -v "$(pwd)":/app -e "GOPATH=/gopath" -w /app golang:1.4.2 sh -c 'CGO_ENABLED=0 go build -a --installsuffix cgo --ldflags="-s" -o hello'

3. Build docker image

docker build -t treeder/go-hello-http .

4. Run it

docker run --rm -it -p 8080:8080 treeder/go-hello-http

Dockerfile

FROM centurylink/ca-certs
MAINTAINER Travis Reeder "[email protected]"
EXPOSE 8080
WORKDIR /app
# copy binary into image
COPY hello /app/
ENTRYPOINT ["./hello"]

main.go

package main

import (
	"fmt"
	"log"
	"net/http"
	"github.com/treeder/easy-go-in-docker/Godeps/_workspace/src/github.com/gorilla/mux"
)

func main() {
	r := mux.NewRouter()
	r.HandleFunc("/", Hello)
	http.Handle("/", r)
	fmt.Println("Starting up on 8080")
	log.Fatal(http.ListenAndServe(":8080", nil))
}

func Hello(w http.ResponseWriter, req *http.Request) {
	fmt.Fprintln(w, "Hello world!")
}