├── .drone.yml
├── Dockerfile
├── Dockerfile-release
├── Makefile
└── app.go


/.drone.yml:
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1 | pipeline:
2 |   build:
3 |     image: plugins/docker
4 |     repo: docker-http-server
5 |     tags: 
6 |       - 1.0.0
7 |       - 1.0
8 |       - latest
9 | 


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/Dockerfile:
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1 | FROM golang:1.6-alpine
2 | RUN mkdir /app 
3 | ADD . /app/ 
4 | WORKDIR /app 
5 | RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main .
6 | CMD ["/app/main"]
7 | 
8 | EXPOSE 80
9 | 


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/Dockerfile-release:
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1 | FROM scratch
2 | EXPOSE 80
3 | COPY app /
4 | CMD ["/app"]
5 | 


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/Makefile:
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 1 | NAME = katacoda/docker-http-server
 2 | TAG=v1
 3 | INSTANCE = scrapbook-http-server
 4 | 
 5 | .PHONY: default build copy debug clean push buildrelease
 6 | 
 7 | default: buildrelease
 8 | 
 9 | build:
10 | 	docker build -t $(NAME)-dev .
11 | 
12 | copy:
13 | 	docker create --name $(INSTANCE) $(NAME)-dev
14 | 	docker cp $(INSTANCE):/app/main $(shell pwd)/app
15 | 	docker rm $(INSTANCE)
16 | 
17 | release:
18 | 	docker build -t $(NAME):$(TAG) -f Dockerfile-release .
19 | 	docker tag $(NAME):$(TAG) $(NAME):latest
20 | 
21 | buildrelease: build copy release
22 | 
23 | clean:
24 | 	docker rm $(INSTANCE)
25 | 
26 | debug:
27 | 	docker run --rm -it --name $(INSTANCE) $(NAME)-dev /bin/bash
28 | 
29 | run:
30 | 	docker run --rm -p 80:80 --name $(INSTANCE) $(NAME)
31 | 
32 | dev:
33 | 	docker run -it --rm -p 80:80 -w /go/src/github.com/$(NAME) -v $(shell pwd)/vendor/github.com/:/go/src/github.com/ -v $(shell pwd):/go/src/github.com/$(NAME) golang:1.6
34 | 
35 | push:
36 | 	docker push $(NAME):$(TAG)
37 | 	docker push $(NAME):latest
38 | 


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/app.go:
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 1 | package main
 2 | 
 3 | import (
 4 |   "fmt"
 5 |   "net/http"
 6 |   "os"
 7 | )
 8 | 
 9 | func handler(w http.ResponseWriter, r *http.Request) {
10 |   var name, _ = os.Hostname()
11 | 
12 |   fmt.Fprintf(w, "<h1>This request was processed by host: %s</h1>\n", name)
13 | }
14 | 
15 | func main() {
16 |   fmt.Fprintf(os.Stdout, "Web Server started. Listening on 0.0.0.0:80\n")
17 |   http.HandleFunc("/", handler)
18 |   http.ListenAndServe(":80", nil)
19 | }
20 | 


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