kubeasz/docs/deprecated/practice/go_web_app/hellogo.go

35 lines
785 B
Go

package main
import (
"fmt"
"log"
"math/rand"
"net/http"
"time"
)
var appVersion = "1.2" //Default/fallback version
var instanceNum int
func getFrontpage(w http.ResponseWriter, r *http.Request) {
t := time.Now()
fmt.Fprintf(w, "Hello, Go! I'm instance %d running version %s at %s\n", instanceNum, appVersion, t.Format("2019-01-02 15:04:05"))
}
func health(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
}
func getVersion(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "%s\n", appVersion)
}
func main() {
rand.Seed(time.Now().UTC().UnixNano())
instanceNum = rand.Intn(1000)
http.HandleFunc("/", getFrontpage)
http.HandleFunc("/health", health)
http.HandleFunc("/version", getVersion)
log.Fatal(http.ListenAndServe(":3000", nil))
}