Merge pull request #1346 from Frankkkkk/fvd/dualstack

options: change default host from 0.0.0.0 to ::

docs/cli-arguments.md

@@ -30,7 +30,7 @@ Usage of ./kube-state-metrics:
       --apiserver string                  The URL of the apiserver to use as a master
       --enable-gzip-encoding              Gzip responses when requested by clients via 'Accept-Encoding: gzip' header.
   -h, --help                              Print Help text
-      --host string                       Host to expose metrics on. (default "0.0.0.0")
+      --host string                       Host to expose metrics on. (default "::")
       --kubeconfig string                 Absolute path to the kubeconfig file
       --labels-metric-allow-list string   Allows to pass a list of additional Kubernetes label keys that will be used in the resource' labels metric. By default the metric contains only name and namespace labels. To include additional labels provide a list of resource names in their plural form and Kubernetes label keys you would like to allow for them (Example: '=namespaces=["k8s-label-1","k8s-label-n",...],pods=["app"],...)'
       --log_backtrace_at traceLocation    when logging hits line file:N, emit a stack trace (default :0)
@@ -49,7 +49,7 @@ Usage of ./kube-state-metrics:
       --skip_headers                      If true, avoid header prefixes in the log messages
       --skip_log_headers                  If true, avoid headers when opening log files
       --stderrthreshold severity          logs at or above this threshold go to stderr (default 2)
-      --telemetry-host string             Host to expose kube-state-metrics self metrics on. (default "0.0.0.0")
+      --telemetry-host string             Host to expose kube-state-metrics self metrics on. (default "::")
       --telemetry-port int                Port to expose kube-state-metrics self metrics on. (default 8081)
       --total-shards int                  The total number of shards. Sharding is disabled when total shards is set to 1. (default 1)
   -v, --v Level                           number for the log level verbosity

pkg/options/options.go

@@ -81,9 +81,9 @@ func (o *Options) AddFlags() {
 	o.flags.StringVar(&o.Kubeconfig, "kubeconfig", "", "Absolute path to the kubeconfig file")
 	o.flags.BoolVarP(&o.Help, "help", "h", false, "Print Help text")
 	o.flags.IntVar(&o.Port, "port", 8080, `Port to expose metrics on.`)
-	o.flags.StringVar(&o.Host, "host", "0.0.0.0", `Host to expose metrics on.`)
+	o.flags.StringVar(&o.Host, "host", "::", `Host to expose metrics on.`)
 	o.flags.IntVar(&o.TelemetryPort, "telemetry-port", 8081, `Port to expose kube-state-metrics self metrics on.`)
-	o.flags.StringVar(&o.TelemetryHost, "telemetry-host", "0.0.0.0", `Host to expose kube-state-metrics self metrics on.`)
+	o.flags.StringVar(&o.TelemetryHost, "telemetry-host", "::", `Host to expose kube-state-metrics self metrics on.`)
 	o.flags.Var(&o.Resources, "resources", fmt.Sprintf("Comma-separated list of Resources to be enabled. Defaults to %q", &DefaultResources))
 	o.flags.Var(&o.Namespaces, "namespaces", fmt.Sprintf("Comma-separated list of namespaces to be enabled. Defaults to %q", &DefaultNamespaces))
 	o.flags.Var(&o.MetricAllowlist, "metric-allowlist", "Comma-separated list of metrics to be exposed. This list comprises of exact metric names and/or regex patterns. The allowlist and denylist are mutually exclusive.")