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package main
import (
"fmt"
"log"
"net/http"
"os"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
)
type Opts struct {
Port uint16
KeyFile string
CertFile string
}
func handler(writer http.ResponseWriter, request *http.Request) {
res := "pong.my"
writer.Header().Set("Content-Type", "text/plain")
writer.WriteHeader(http.StatusOK)
_, _ = writer.Write([]byte(res))
}
func runServer(opts *Opts) error {
mainMux := http.NewServeMux()
mainMux.Handle("/ping", http.HandlerFunc(handler))
server := &http.Server{
Addr: fmt.Sprintf("localhost:%d", opts.Port),
Handler: mainMux,
ErrorLog: log.New(os.Stdout, "", log.LstdFlags),
}
return server.ListenAndServeTLS(opts.CertFile, opts.KeyFile)
}
func markFlagRequired(flags *pflag.FlagSet, names ...string) {
for _, n := range names {
name := n
if err := cobra.MarkFlagRequired(flags, name); err != nil {
panic(err)
}
}
}
func main() {
opts := Opts{}
cmd := cobra.Command{
RunE: func(cmd *cobra.Command, args []string) error {
return runServer(&opts)
},
}
flags := cmd.Flags()
flags.Uint16Var(&opts.Port, "port", 0, "")
flags.StringVar(&opts.KeyFile, "keyfile", "", "path to key file")
flags.StringVar(&opts.CertFile, "certfile", "", "path to cert file")
markFlagRequired(flags, "port", "keyfile", "certfile")
if err := cmd.Execute(); err != nil {
_, _ = fmt.Fprintf(os.Stderr, "Exit with err: %s", err)
os.Exit(1)
}
}
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