input: dedent.Dedent(`
				*filter
				:KUBE-SERVICES - [0:0]
				:KUBE-EXTERNAL-SERVICES - [0:0]
				:KUBE-FORWARD - [0:0]
				:KUBE-NODEPORTS - [0:0]
				-A KUBE-NODEPORTS -m comment --comment "ns2/svc2:p80 health check node port" -m tcp -p tcp --dport 30000 -j ACCEPT
				-A KUBE-FORWARD -m conntrack --ctstate INVALID -j DROP
				-A KUBE-FORWARD -m comment --comment "kubernetes forwarding rules" -m mark --mark 0x4000/0x4000 -j ACCEPT

- If `ComponentSLIs` feature gate is enabled, then `/metrics/slis` now becomes available on cloud-controller-manager allowing you to scrape health check metrics. ([#113340](https://github.com/kubernetes/kubernetes/pull/113340), [@Richabanker](http...

- Kubeadm: modified the etcd static Pod `liveness` and `readiness` probes to use a new etcd `v3.5.3+` HTTP(s) health check endpoint `/health?serializable=true` that allows to track the health of individual etcd members and not fail all members if a single member is not healthy in the etcd cluster. ([#110072](https://github.com/kubernetes/kubernetes/pull/110072), [@neolit123](https://github.com/neolit123))

}

// Probe describes a health check to be performed against a container to determine whether it is
// alive or ready to receive traffic.
type Probe struct {
	// The action taken to determine the health of a container
	ProbeHandler
	// Length of time before health checking is activated.  In seconds.
	// +optional
	InitialDelaySeconds int32
	// Length of time before health checking times out.  In seconds.

- Kubeadm: during kubelet health checks, respect the healthz address:port configured in the KubeletConfiguration instead of hardcoding localhost:10248. ([#125286](https://github.com/kubernetes/kubernetes/pull/125286), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

- Removed `/livez` livezchecks for KMS v1 and v2 to ensure KMS health does not cause `kube-apiserver` restart. KMS health checks are still in place as a healthz and readiness checks. ([#120583](https://github.com/kubernetes/kubernetes/pull/120583), [@ritazh](https://github.com/ritazh))

message ComponentCondition {
  // Type of condition for a component.
  // Valid value: "Healthy"
  optional string type = 1;

  // Status of the condition for a component.
  // Valid values for "Healthy": "True", "False", or "Unknown".
  optional string status = 2;

  // Message about the condition for a component.
  // For example, information about a health check.
  // +optional
  optional string message = 3;

* Add etcd connectivity endpoint to healthz ([#49412](https://github.com/kubernetes/kubernetes/pull/49412), [@bjhaid](https://github.com/bjhaid))
* kube-proxy will emit "FailedToStartNodeHealthcheck" event when fails to start healthz server. ([#49267](https://github.com/kubernetes/kubernetes/pull/49267), [@MrHohn](https://github.com/MrHohn))

}

// Type and constants for component health validation.
type ComponentConditionType string

// These are the valid conditions for the component.
const (
	ComponentHealthy ComponentConditionType = "Healthy"
)

// Information about the condition of a component.
type ComponentCondition struct {
	// Type of condition for a component.
	// Valid value: "Healthy"

	"type":    "Type of condition for a component. Valid value: \"Healthy\"",
	"status":  "Status of the condition for a component. Valid values for \"Healthy\": \"True\", \"False\", or \"Unknown\".",
	"message": "Message about the condition for a component. For example, information about a health check.",
	"error":   "Condition error code for a component. For example, a health check error code.",
}