diff --git a/cmd/nfd-topology-updater/main.go b/cmd/nfd-topology-updater/main.go index 16e4318777..f89a874898 100644 --- a/cmd/nfd-topology-updater/main.go +++ b/cmd/nfd-topology-updater/main.go @@ -19,8 +19,10 @@ package main import ( "flag" "fmt" + "net" "os" "path" + "strings" "time" "k8s.io/klog/v2" @@ -89,6 +91,10 @@ func parseArgs(flags *flag.FlagSet, osArgs ...string) (*topology.Args, *resource "please either define the NODE_ADDRESS environment variable or specify endpoint with the -kubelet-config-uri flag\n", kubeletSecurePort) os.Exit(1) } + if isIPv6(nodeAddress) { + // With IPv6 we need to wrap the IP address in brackets as we append :port below + nodeAddress = "[" + nodeAddress + "]" + } resourcemonitorArgs.KubeletConfigURI = fmt.Sprintf("https://%s:%d/configz", nodeAddress, kubeletSecurePort) } @@ -126,3 +132,8 @@ func initFlags(flagset *flag.FlagSet) (*topology.Args, *resourcemonitor.Args) { return args, resourcemonitorArgs } + +func isIPv6(addr string) bool { + ip := net.ParseIP(addr) + return ip != nil && strings.Count(ip.String(), ":") >= 2 +}