Created
March 5, 2016 11:00
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Tiny Go microservice plumbing
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| FROM alpine:3.2 | |
| ENV GOROOT=/usr/lib/go \ | |
| GOPATH=/gopath \ | |
| GOBIN=/gopath/bin \ | |
| PATH=$PATH:$GOROOT/bin:$GOPATH/bin | |
| WORKDIR /gopath/src/app | |
| ADD . /gopath/src/app | |
| RUN apk add -U git go && \ | |
| go get -v app && \ | |
| apk del git go && \ | |
| rm -rf /gopath/pkg && \ | |
| rm -rf /gopath/src && \ | |
| rm -rf /var/cache/apk/* | |
| ENTRYPOINT ["/gopath/bin/app"] |
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| package main | |
| import ( | |
| "fmt" | |
| "io" | |
| "log" | |
| "net/http" | |
| ) | |
| func helloHandler(res http.ResponseWriter, req *http.Request) { | |
| res.Header().Set( | |
| "Content-Type", | |
| "text/html", | |
| ) | |
| io.WriteString( | |
| res, | |
| `<doctype html> | |
| <html> | |
| <head> | |
| <title>Hello Gopher</title> | |
| </head> | |
| <body> | |
| Hello Gopher </br> | |
| It is really awesome that both Docker and Kubernetes are written in Go! | |
| </body> | |
| </html>`, | |
| ) | |
| } | |
| func defaultHandler(w http.ResponseWriter, r *http.Request) { | |
| fmt.Fprintf(w, "Go web app powered by Docker") | |
| } | |
| func main() { | |
| http.HandleFunc("/", defaultHandler) | |
| http.HandleFunc("/hello", helloHandler) | |
| err := http.ListenAndServe(":8080", nil) | |
| if err != nil { | |
| log.Fatal("ListenAndServe: ", err) | |
| return | |
| } | |
| } |
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| docker build -t go-micro . | |
| docker run --rm -p 8080:8080 go-micro |
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| $ docker images | grep go-micro | |
| go-micro latest afb298c5c754 17 minutes ago 11.43 MB |
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