MEDIUM: stats: rework stats

Stats now return error when unable to connect to the socket
within the response body. If one socket fails the status is 500
but all successful sockets are returned in response body. When
initializing runtime client for now we ignore ipv4 runtime APIs as
we don't support those yet.

Author: mjuraga

configure_data_plane.go

@@ -489,7 +489,7 @@ func configureNativeClient() *client_native.HAProxyClient {
 	// Override options with env variables
 	if os.Getenv("HAPROXY_MWORKER") == "1" {
 		masterRuntime := os.Getenv("HAPROXY_MASTER_CLI")
-		if masterRuntime != "" {
+		if masterRuntime != "" && !strings.HasPrefix(masterRuntime, "ipv4@") {
 			haproxyOptions.MasterRuntime = masterRuntime
 		}
 	}
@@ -540,13 +540,15 @@ func configureRuntimeClient(confClient *configuration.Client) *runtime_api.Clien
 		if len(runtimeAPIs) != 0 {
 			statsSocketConfigured = true
 			for _, r := range runtimeAPIs {
-				socketList = append(socketList, *r.Address)
+				if !strings.HasPrefix(*r.Address, "ipv4@") {
+					socketList = append(socketList, *r.Address)
+				}
 			}
 		}
 
 		masterSocket := ""
 		nbproc := 0
-		if haproxyOptions.MasterRuntime != "" {
+		if haproxyOptions.MasterRuntime != "" && !strings.HasPrefix(haproxyOptions.MasterRuntime, "ipv4@") {
 			if globalConf.Nbproc > 0 {
 				statsSocketConfigured = true
 				nbproc = int(globalConf.Nbproc)