The RateLimitPolicy Custom Resource Definition (CRD)

• RateLimitPolicy
• RateLimitPolicySpec
  • RateLimitPolicyCommonSpec
  • Limit
    • RateLimit
    • WhenCondition
• RateLimitPolicyStatus
  • ConditionSpec

RateLimitPolicy

Field	Type	Required	Description
spec	RateLimitPolicySpec	Yes	The specification for RateLimitPolicy custom resource
status	RateLimitPolicyStatus	No	The status for the custom resource

RateLimitPolicySpec

Field	Type	Required	Description
targetRef	PolicyTargetReference	Yes	Reference to a Kubernetes resource that the policy attaches to
defaults	RateLimitPolicyCommonSpec	No	Default limit definitions. This field is mutually exclusive with the limits field
overrides	RateLimitPolicyCommonSpec	No	Overrides limit definitions. This field is mutually exclusive with the limits field and defaults field. This field is only allowed for policies targeting Gateway in targetRef.kind
limits	MapLimit>	No	Limit definitions. This field is mutually exclusive with the defaults field

RateLimitPolicyCommonSpec

Field	Type	Required	Description
limits	MapLimit>	No	Explicit Limit definitions. This field is mutually exclusive with RateLimitPolicySpec limits field

Limit

Field	Type	Required	Description
rates	[]RateLimit	No	List of rate limits associated with the limit definition
counters	[]String	No	List of rate limit counter qualifiers. Items must be a valid Well-known attribute. Each distinct value resolved in the data plane starts a separate counter for each rate limit.
routeSelectors	[]RouteSelector	No	List of selectors of HTTPRouteRules whose matching rules activate the limit. At least one HTTPRouteRule must be selected to activate the limit. If omitted, all HTTPRouteRules of the targeted HTTPRoute activate the limit. Do not use it in policies targeting a Gateway.
when	[]WhenCondition	No	List of additional dynamic conditions (expressions) to activate the limit. All expression must evaluate to true for the limit to be applied. Use it for filtering attributes that cannot be expressed in the targeted HTTPRoute's spec.hostnames and spec.rules.matches fields, or when targeting a Gateway.

RateLimit

Field	Type	Required	Description
limit	Number	Yes	Maximum value allowed within the given period of time (duration)
duration	Number	Yes	The period of time in the specified unit that the limit applies
unit	String	Yes	Unit of time for the duration of the limit. One-of: "second", "minute", "hour", "day".

WhenCondition

Field	Type	Required	Description
selector	String	Yes	A valid Well-known attribute whose resolved value in the data plane will be compared to value, using the operator.
operator	String	Yes	The binary operator to be applied to the resolved value specified by the selector. One-of: "eq" (equal to), "neq" (not equal to)
value	String	Yes	The static value to be compared to the one resolved from the selector.

RateLimitPolicyStatus

Field	Type	Description
observedGeneration	String	Number of the last observed generation of the resource. Use it to check if the status info is up to date with latest resource spec.
conditions	[]ConditionSpec	List of conditions that define that status of the resource.

ConditionSpec

• The lastTransitionTime field provides a timestamp for when the entity last transitioned from one status to another.
• The message field is a human-readable message indicating details about the transition.
• The reason field is a unique, one-word, CamelCase reason for the condition’s last transition.
• The status field is a string, with possible values True, False, and Unknown.
• The type field is a string with the following possible values:
  • Available: the resource has successfully configured;

Field	Type	Description
type	String	Condition Type
status	String	Status: True, False, Unknown
reason	String	Condition state reason
message	String	Condition state description
lastTransitionTime	Timestamp	Last transition timestamp