add http server to handle ACME challenges

tools/walletextension/walletextension_container.go

@@ -2,6 +2,7 @@ package walletextension
 
 import (
 	"crypto/tls"
+	"net/http"
 	"os"
 	"time"
 
@@ -78,6 +79,13 @@ func NewContainerFromConfig(config wecommon.Config, logger gethlog.Logger) *Cont
 			// Cache:      autocert.DirCache("certs"), // TODO: We can add cache for certs (+ don't forget to include the directory in enclave.json)
 		}
 
+		// Create HTTP-01 challenge handler
+		httpServer := &http.Server{
+			Addr:    ":http", // Port 80
+			Handler: certManager.HTTPHandler(nil),
+		}
+		go httpServer.ListenAndServe() // Start HTTP server for ACME challenges
+
 		tlsConfig := &tls.Config{
 			GetCertificate: certManager.GetCertificate,
 			MinVersion:     tls.VersionTLS12,