Add --options-config-file flag

--options-config-file flag defines the path to the kube-state-metrics
options config file.

pkg/options/options.go

@@ -43,8 +43,8 @@ type Options struct {
 	TotalShards          int
 	Pod                  string
 	Namespace            string
-	MetricDenylist       MetricSet
-	MetricAllowlist      MetricSet
+	MetricDenylist       MetricSet `yaml:"metric_denylist"`
+	MetricAllowlist      MetricSet `yaml:"metric_allowlist"`
 	MetricOptInList      MetricSet
 	Version              bool
 	AnnotationsAllowList LabelsAllowList
@@ -57,9 +57,15 @@ type Options struct {
 	CustomResourceConfig     string
 	CustomResourceConfigFile string
 
+	optsConfigFile string
+
 	flags *pflag.FlagSet
 }
 
+func GetOptsConfigFile(opt Options) string {
+	return opt.optsConfigFile
+}
+
 // NewOptions returns a new instance of `Options`.
 func NewOptions() *Options {
 	return &Options{
@@ -120,6 +126,7 @@ func (o *Options) AddFlags() {
 
 	o.flags.StringVar(&o.CustomResourceConfig, "custom-resource-state-config", "", "Inline Custom Resource State Metrics config YAML (experimental)")
 	o.flags.StringVar(&o.CustomResourceConfigFile, "custom-resource-state-config-file", "", "Path to a Custom Resource State Metrics config file (experimental)")
+	o.flags.StringVar(&o.optsConfigFile, "options-config-file", "", "Path to the kube-state-metrics options config file")
 }
 
 // Parse parses the flag definitions from the argument list.