How to Host a Go Application on Vertra Cloud

my-server-go/
├── main.go
├── go.mod
├── go.sum
└── vertracloud.config

module my-server-go

go 1.21

MAIN=main.go
VERSION=recommended

package main

import (
	"encoding/json"
	"fmt"
	"net/http"
	"os"
)

func main() {
	port := os.Getenv("PORT")
	if port == "" {
		port = "80"
	}

	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/json")
		json.NewEncoder(w).Encode(map[string]string{
			"message": "Hello from Go on Vertra Cloud!",
		})
	})

	http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/json")
		json.NewEncoder(w).Encode(map[string]string{
			"status": "healthy",
		})
	})

	fmt.Printf("Server running on port %s\n", port)
	http.ListenAndServe("0.0.0.0:"+port, nil)
}