Implement the first assignment in go

[refs #279da99b2959]

developing/examples/webapp/golang/Dockerfile

@@ -0,0 +1,9 @@
+FROM golang:1.9.2-alpine
+
+WORKDIR /go/src/app
+
+COPY app.go .
+
+RUN go build app.go
+
+CMD ["./app"]

developing/examples/webapp/golang/app.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+  "net/http"
+)
+func helloWorld(w http.ResponseWriter, r *http.Request) {
+  w.Write([]byte("Hello World!"))
+}
+
+func main() {
+  http.HandleFunc("/", helloWorld)
+  http.ListenAndServe(":9494", nil)
+}
+

developing/examples/webapp/golang/docker-compose.yml

@@ -0,0 +1,12 @@
+version: '3.3'
+
+services:
+  app:
+    image: jfahrer/webapp-golang:v1
+    build:
+      context: .
+    volumes:
+      - .:/go/src/app
+    ports:
+      - 9494:9494
+    command: ["go", "run", "app.go"]