This is handy for compiling a quick binary for working on network plumbing with things like Kubernetes Ingress, Istio, Services, and VirtualServices. Sometimes just having something quick and reliable removes the different possible problems. That is why this doesn’t even attempt to read a file (which can get messed up by permissions, container configuration, and other Dockerfile fails).
package main
import (
"fmt"
"log"
"net/http"
)
func main() {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Hey there.\n")
})
log.Fatal(http.ListenAndServe(":8080", nil))
}
This is also great fun for speed coding “katas” for ultimate beginners.