Update server.go

cmd/server.go

@@ -86,22 +86,26 @@ var (
 					m := o.UnstructuredContent()
 
 					spec := m["spec"].(map[string]interface{})
-					resources := spec["resources"].([]map[string]interface{})
+					resources := spec["resources"].([]interface{})
 
 					for _, res := range resources {
+						res := res.(map[string]interface{})
 						if res["@type"] == "type.googleapis.com/envoy.config.listener.v3.Listener" {
-							filterChains := res["filterChains"].([]map[string]interface{})
+							filterChains := res["filterChains"].([]interface{})
 							for _, filterChain := range filterChains {
-								filters := filterChain["filters"].([]map[string]interface{})
+								filterChain := filterChain.(map[string]interface{})
+								filters := filterChain["filters"].([]interface{})
 								for _, filter := range filters {
+									filter := filter.(map[string]interface{})
 									if filter["name"] == "envoy.filters.network.http_connection_manager" {
-										upgradeConfigs := filter["upgradeConfigs"].([]interface{})
+										typedConfig := filter["typedConfig"].(map[string]interface{})
+										upgradeConfigs := typedConfig["upgradeConfigs"].([]interface{})
 										upgradeConfigs = append(upgradeConfigs, map[string]interface{}{
 											"upgradeType": "tailscale-control-protocol",
 										})
-										filter["upgradeConfigs"] = upgradeConfigs
-										filter["useRemoteAddress"] = true
-										filter["xffNumTrustedHops"] = 1
+										typedConfig["upgradeConfigs"] = upgradeConfigs
+										typedConfig["useRemoteAddress"] = true
+										typedConfig["xffNumTrustedHops"] = 1
 									}
 								}
 							}