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29package main
import (
"fmt"
"log"
"net/http"
"os"
)
func main() {
http.HandleFunc("/", handler)
port := os.Getenv("PORT")
if port == "" {
port = "8080" // Default port if not specified
}
log.Printf("Starting server on port %s...", port)
log.Fatal(http.ListenAndServe(":"+port, nil))
}
func handler(w http.ResponseWriter, r *http.Request) {
name := os.Getenv("NAME")
if name == "" {
name = "World" // Default name if not specified
}
fmt.Fprintf(w, "Hello, %s!\n", name)
fmt.Fprintf(w, "Welcome to Cloud Computing Class!\n")
fmt.Fprintf(w, "This is a simple Dockerized Go app\n")
}