simple hello world

.dockerignore

Makefile
.git
.gitignore

.gitignore

###Go###

# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
*.swo
*.swp

# Folders
_obj
_test

# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out

*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*

_testmain.go

*.exe
*.test


###OSX###

.DS_Store
.AppleDouble
.LSOverride

# Icon must ends with two \r.
Icon


# Thumbnails
._*

# Files that might appear on external disk
.Spotlight-V100
.Trashes

hello

Dockerfile

FROM scratch

COPY hello /hello

CMD ["/hello"]

main.go

package main

import (
	"fmt"
	"log"
	"net/http"
	"os"
)

const defaultPort = "8080"

func handler(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "Hello DCOS!")
}

func main() {
	port := os.Getenv("PORT0")
	if port == "" {
		port = defaultPort
	}

	http.HandleFunc("/", handler)
	log.Println("Starting server on port: ", port)
	http.ListenAndServe(":"+port, nil)
}

Makefile

all: hello

hello:
	CGO_ENABLED=0 go build -tags "$(BUILDTAGS) static_build" -ldflags "-w -extldflags -static" -o hello .

docker: hello
	docker build --rm --force-rm -t jess/hello .