func main()

in integration-test/webserver/main.go [178:221]
36 lines of code
3 McCabe index (conditional complexity)

func main() {
	args := flag.String("args", "", `Example usage: '2h-valid' to send StatusCode: 200, ResponseBody: { "ApplicationHealthState": "Healthy", "CustomMetrics": "<valid json>"}`)
	securityProtocol := flag.String("securityProtocol", "tls1.3", "Specifies the security protocol to use for the HTTPS server. Valid options are: tls1.0, tls1.1, tls1.2, tls1.3, ssl3.0. Default is tls1.3.")
	flag.Parse()
	originalArgs := strings.Split(*args, ",")
	arguments := strings.Split(*args, ",")
	var shouldExitOnEmptyArgs = len(arguments) > 0

	httpMutex := http.NewServeMux()
	httpServer := http.Server{
		Addr:    ":8080",
		Handler: httpMutex}

	httpsServer := http.Server{
		Addr:    ":4430", //changing default port from 443 to 4430 to avoid conflict with other services
		Handler: httpMutex,
		TLSConfig: &tls.Config{
			MinVersion: getSecurityProtocolVersion(*securityProtocol),
			MaxVersion: getSecurityProtocolVersion(*securityProtocol)},
	}

	// sends json resonse body with application health state expected by extension
	// looks at the first state in the healthStates array and dequeues that element after its iterated
	httpMutex.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
		healthHandler(w, r, &arguments)

		// if arguments is non-empty, this means that the test is only meant to run till we iterate over all arguments, so the servers are shutdown
		if shouldExitOnEmptyArgs && len(arguments) == 0 {
			go func() {
				log.Printf("Finished serving arguments: %v", originalArgs)
				log.Printf("Shutting down http and https server")
				httpServer.Shutdown(context.Background())
				httpsServer.Shutdown(context.Background())
			}()
		}
	})

	log.Printf("Arguments: %v, len: %v", arguments, len(arguments))
	log.Printf("Starting http server...")
	go httpServer.ListenAndServe()
	log.Printf("Starting https server...")
	log.Fatal(httpsServer.ListenAndServeTLS("webservercert.pem", "webserverkey.pem"))
	log.Printf("Servers stopped...")
}