Enable HTTP/2 support in the router

Author: felixbuenemann

nginx/config.go

@@ -115,7 +115,7 @@ http {
 	# Default server handles requests for unmapped hostnames, including healthchecks
 	server {
 		listen 8080 default_server reuseport{{ if $routerConfig.UseProxyProtocol }} proxy_protocol{{ end }};
-		listen 6443 default_server ssl{{ if $routerConfig.UseProxyProtocol }} proxy_protocol{{ end }};
+		listen 6443 default_server ssl http2{{ if $routerConfig.UseProxyProtocol }} proxy_protocol{{ end }};
 		set $app_name "router-default-vhost";
 		{{ if $routerConfig.PlatformCertificate }}
 		ssl_protocols {{ $sslConfig.Protocols }};