app-template-golang/main.go

// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package main

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

func main() {
	env := os.Getenv("ENVIRONMENT")
	port := 8080
	log.Printf("Running in environment: %s\n", env)

	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		log.Printf("Received request from %s at %s", r.RemoteAddr, r.URL.EscapedPath())
		fmt.Fprint(w, "Hello World!")
	})
	http.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
		log.Printf("Received health check from %s", r.RemoteAddr)
		w.WriteHeader(http.StatusOK)
	})
	log.Printf("Starting server on port: %v", port)
	log.Fatal(http.ListenAndServe(fmt.Sprintf(":%v", port), nil))

}