Function TLSServerName

pkg/hubble/peer/handler.go:179–197

TLSServerName constructs a server name to be used as the TLS server name. The server name is of the following form: . . . For example, with nodeName=moseisley and clusterName=tatooine, the following server name is returned: moseisley.tatooine.h

(nodeName, clusterName string)

// defaults to the default cluster name. All Dot (.) in clusterName are
// replaced by Hypen (-).
func TLSServerName(nodeName, clusterName string) string {
	if nodeName == "" {
		return ""
	}
	// To ensure that each node's ServerName is at the same DNS domain level,
	// we have to lookout for Dot (.) as Kubernetes allows them in Node names.
	nn := strings.ReplaceAll(nodeName, ".", "-")
	if clusterName == "" {
		clusterName = ciliumDefaults.ClusterName
	}
	// The cluster name may also contain dots.
	cn := strings.ReplaceAll(clusterName, ".", "-")
	return strings.Join([]string{
		nn,
		cn,
		defaults.GRPCServiceName,
		defaults.DomainName,
	}, ".")
}