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Kind
Envoyextensionpolicy
Group
gateway.envoyproxy.io
Version
v1alpha1
apiVersion: gateway.envoyproxy.io/v1alpha1 kind: Envoyextensionpolicy metadata: name: example
View raw schema
apiVersion string
APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources
kind string
Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
metadata object
spec object required
Spec defines the desired state of EnvoyExtensionPolicy.
extProc []object
ExtProc is an ordered list of external processing filters that should be added to the envoy filter chain
maxItems: 16
backendRef object
BackendRef references a Kubernetes object that represents the backend server to which the authorization request will be sent. Deprecated: Use BackendRefs instead.
group string
Group is the group of the referent. For example, "gateway.networking.k8s.io". When unspecified or empty string, core API group is inferred.
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
maxLength: 253
kind string
Kind is the Kubernetes resource kind of the referent. For example "Service". Defaults to "Service" when not specified. ExternalName services can refer to CNAME DNS records that may live outside of the cluster and as such are difficult to reason about in terms of conformance. They also may not be safe to forward to (see CVE-2021-25740 for more information). Implementations SHOULD NOT support ExternalName Services. Support: Core (Services with a type other than ExternalName) Support: Implementation-specific (Services with type ExternalName)
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
minLength: 1
maxLength: 63
name string required
Name is the name of the referent.
minLength: 1
maxLength: 253
namespace string
Namespace is the namespace of the backend. When unspecified, the local namespace is inferred. Note that when a namespace different than the local namespace is specified, a ReferenceGrant object is required in the referent namespace to allow that namespace's owner to accept the reference. See the ReferenceGrant documentation for details. Support: Core
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
minLength: 1
maxLength: 63
port integer
Port specifies the destination port number to use for this resource. Port is required when the referent is a Kubernetes Service. In this case, the port number is the service port number, not the target port. For other resources, destination port might be derived from the referent resource or this field.
format: int32
minimum: 1
maximum: 65535
backendRefs []object
BackendRefs references a Kubernetes object that represents the backend server to which the authorization request will be sent.
maxItems: 16
fallback boolean
Fallback indicates whether the backend is designated as a fallback. Multiple fallback backends can be configured. It is highly recommended to configure active or passive health checks to ensure that failover can be detected when the active backends become unhealthy and to automatically readjust once the primary backends are healthy again. The overprovisioning factor is set to 1.4, meaning the fallback backends will only start receiving traffic when the health of the active backends falls below 72%.
group string
Group is the group of the referent. For example, "gateway.networking.k8s.io". When unspecified or empty string, core API group is inferred.
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
maxLength: 253
kind string
Kind is the Kubernetes resource kind of the referent. For example "Service". Defaults to "Service" when not specified. ExternalName services can refer to CNAME DNS records that may live outside of the cluster and as such are difficult to reason about in terms of conformance. They also may not be safe to forward to (see CVE-2021-25740 for more information). Implementations SHOULD NOT support ExternalName Services. Support: Core (Services with a type other than ExternalName) Support: Implementation-specific (Services with type ExternalName)
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
minLength: 1
maxLength: 63
name string required
Name is the name of the referent.
minLength: 1
maxLength: 253
namespace string
Namespace is the namespace of the backend. When unspecified, the local namespace is inferred. Note that when a namespace different than the local namespace is specified, a ReferenceGrant object is required in the referent namespace to allow that namespace's owner to accept the reference. See the ReferenceGrant documentation for details. Support: Core
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
minLength: 1
maxLength: 63
port integer
Port specifies the destination port number to use for this resource. Port is required when the referent is a Kubernetes Service. In this case, the port number is the service port number, not the target port. For other resources, destination port might be derived from the referent resource or this field.
format: int32
minimum: 1
maximum: 65535
weight integer
Weight specifies the proportion of requests forwarded to the referenced backend. This is computed as weight/(sum of all weights in this BackendRefs list). For non-zero values, there may be some epsilon from the exact proportion defined here depending on the precision an implementation supports. Weight is not a percentage and the sum of weights does not need to equal 100. If only one backend is specified and it has a weight greater than 0, 100% of the traffic is forwarded to that backend. If weight is set to 0, no traffic should be forwarded for this entry. If unspecified, weight defaults to 1. Support for this field varies based on the context where used.
format: int32
minimum: 0
maximum: 1e+06
backendSettings object
BackendSettings holds configuration for managing the connection to the backend.
circuitBreaker object
Circuit Breaker settings for the upstream connections and requests. If not set, circuit breakers will be enabled with the default thresholds
maxConnections integer
The maximum number of connections that Envoy will establish to the referenced backend defined within a xRoute rule.
format: int64
minimum: 0
maximum: 4.294967295e+09
maxParallelRequests integer
The maximum number of parallel requests that Envoy will make to the referenced backend defined within a xRoute rule.
format: int64
minimum: 0
maximum: 4.294967295e+09
maxParallelRetries integer
The maximum number of parallel retries that Envoy will make to the referenced backend defined within a xRoute rule.
format: int64
minimum: 0
maximum: 4.294967295e+09
maxPendingRequests integer
The maximum number of pending requests that Envoy will queue to the referenced backend defined within a xRoute rule.
format: int64
minimum: 0
maximum: 4.294967295e+09
maxRequestsPerConnection integer
The maximum number of requests that Envoy will make over a single connection to the referenced backend defined within a xRoute rule. Default: unlimited.
format: int64
minimum: 0
maximum: 4.294967295e+09
perEndpoint object
PerEndpoint defines Circuit Breakers that will apply per-endpoint for an upstream cluster
maxConnections integer
MaxConnections configures the maximum number of connections that Envoy will establish per-endpoint to the referenced backend defined within a xRoute rule.
format: int64
minimum: 0
maximum: 4.294967295e+09
connection object
Connection includes backend connection settings.
bufferLimit object
BufferLimit Soft limit on size of the cluster’s connections read and write buffers. BufferLimit applies to connection streaming (maybe non-streaming) channel between processes, it's in user space. If unspecified, an implementation defined default is applied (32768 bytes). For example, 20Mi, 1Gi, 256Ki etc. Note: that when the suffix is not provided, the value is interpreted as bytes.
preconnect object
Preconnect configures proactive upstream connections to reduce latency by establishing connections before they’re needed and avoiding connection establishment overhead. If unset, Envoy will fetch connections as needed to serve in-flight requests.
perEndpointPercent integer
PerEndpointPercent configures how many additional connections to maintain per upstream endpoint, useful for high-QPS or latency sensitive services. Expressed as a percentage of the connections required by active streams (e.g. 100 = preconnect disabled, 105 = 1.05x connections per-endpoint, 200 = 2.00×). Allowed value range is between 100-300. When both PerEndpointPercent and PredictivePercent are set, Envoy ensures both are satisfied (max of the two).
format: int32
minimum: 100
maximum: 300
predictivePercent integer
PredictivePercent configures how many additional connections to maintain across the cluster by anticipating which upstream endpoint the load balancer will select next, useful for low-QPS services. Relies on deterministic loadbalancing and is only supported with Random or RoundRobin. Expressed as a percentage of the connections required by active streams (e.g. 100 = 1.0 (no preconnect), 105 = 1.05× connections across the cluster, 200 = 2.00×). Minimum allowed value is 100. When both PerEndpointPercent and PredictivePercent are set Envoy ensures both are satisfied per host (max of the two).
format: int32
minimum: 100
socketBufferLimit object
SocketBufferLimit provides configuration for the maximum buffer size in bytes for each socket to backend. SocketBufferLimit applies to socket streaming channel between TCP/IP stacks, it's in kernel space. For example, 20Mi, 1Gi, 256Ki etc. Note that when the suffix is not provided, the value is interpreted as bytes.
dns object
DNS includes dns resolution settings.
dnsRefreshRate string
DNSRefreshRate specifies the rate at which DNS records should be refreshed. Defaults to 30 seconds.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
lookupFamily string
LookupFamily determines how Envoy would resolve DNS for Routes where the backend is specified as a fully qualified domain name (FQDN). If set, this configuration overrides other defaults.
enum: IPv4, IPv6, IPv4Preferred, IPv6Preferred, IPv4AndIPv6
respectDnsTtl boolean
RespectDNSTTL indicates whether the DNS Time-To-Live (TTL) should be respected. If the value is set to true, the DNS refresh rate will be set to the resource record’s TTL. Defaults to true.
healthCheck object
HealthCheck allows gateway to perform active health checking on backends.
active object
Active health check configuration
grpc object
GRPC defines the configuration of the GRPC health checker. It's optional, and can only be used if the specified type is GRPC.
service string
Service to send in the health check request. If this is not specified, then the health check request applies to the entire server and not to a specific service.
healthyThreshold integer
HealthyThreshold defines the number of healthy health checks required before a backend host is marked healthy.
format: int32
minimum: 1
http object
HTTP defines the configuration of http health checker. It's required while the health checker type is HTTP.
expectedResponse object
ExpectedResponse defines a list of HTTP expected responses to match.
binary string
Binary payload base64 encoded.
format: byte
text string
Text payload in plain text.
type string required
Type defines the type of the payload.
expectedStatuses []integer
ExpectedStatuses defines a list of HTTP response statuses considered healthy. Defaults to 200 only
hostname string
Hostname defines the HTTP host that will be requested during health checking. Default: HTTPRoute or GRPCRoute hostname.
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
minLength: 1
maxLength: 253
method string
Method defines the HTTP method used for health checking. Defaults to GET
path string required
Path defines the HTTP path that will be requested during health checking.
minLength: 1
maxLength: 1024
initialJitter string
InitialJitter defines the maximum time Envoy will wait before the first health check. Envoy will randomly select a value between 0 and the initial jitter value.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
interval string
Interval defines the time between active health checks.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
tcp object
TCP defines the configuration of tcp health checker. It's required while the health checker type is TCP.
receive object
Receive defines the expected response payload.
binary string
Binary payload base64 encoded.
format: byte
text string
Text payload in plain text.
type string required
Type defines the type of the payload.
send object
Send defines the request payload.
binary string
Binary payload base64 encoded.
format: byte
text string
Text payload in plain text.
type string required
Type defines the type of the payload.
timeout string
Timeout defines the time to wait for a health check response.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type string required
Type defines the type of health checker.
unhealthyThreshold integer
UnhealthyThreshold defines the number of unhealthy health checks required before a backend host is marked unhealthy.
format: int32
minimum: 1
panicThreshold integer
When number of unhealthy endpoints for a backend reaches this threshold Envoy will disregard health status and balance across all endpoints. It's designed to prevent a situation in which host failures cascade throughout the cluster as load increases. If not set, the default value is 50%. To disable panic mode, set value to `0`.
format: int32
minimum: 0
maximum: 100
passive object
Passive passive check configuration
baseEjectionTime string
BaseEjectionTime defines the base duration for which a host will be ejected on consecutive failures.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
consecutive5XxErrors integer
Consecutive5xxErrors sets the number of consecutive 5xx errors triggering ejection.
format: int32
consecutiveGatewayErrors integer
ConsecutiveGatewayErrors sets the number of consecutive gateway errors triggering ejection.
format: int32
consecutiveLocalOriginFailures integer
ConsecutiveLocalOriginFailures sets the number of consecutive local origin failures triggering ejection. Parameter takes effect only when split_external_local_origin_errors is set to true.
format: int32
failurePercentageThreshold integer
FailurePercentageThreshold sets the failure percentage threshold for outlier detection. If the failure percentage of a given host is greater than or equal to this value, it will be ejected. Defaults to 85.
format: int32
minimum: 0
maximum: 100
interval string
Interval defines the time between passive health checks.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
maxEjectionPercent integer
MaxEjectionPercent sets the maximum percentage of hosts in a cluster that can be ejected.
format: int32
splitExternalLocalOriginErrors boolean
SplitExternalLocalOriginErrors enables splitting of errors between external and local origin.
http2 object
HTTP2 provides HTTP/2 configuration for backend connections.
initialConnectionWindowSize object
InitialConnectionWindowSize sets the initial window size for HTTP/2 connections. If not set, the default value is 1 MiB.
initialStreamWindowSize object
InitialStreamWindowSize sets the initial window size for HTTP/2 streams. If not set, the default value is 64 KiB(64*1024).
maxConcurrentStreams integer
MaxConcurrentStreams sets the maximum number of concurrent streams allowed per connection. If not set, the default value is 100.
format: int32
minimum: 1
maximum: 2.147483647e+09
onInvalidMessage string
OnInvalidMessage determines if Envoy will terminate the connection or just the offending stream in the event of HTTP messaging error It's recommended for L2 Envoy deployments to set this value to TerminateStream. https://www.envoyproxy.io/docs/envoy/latest/configuration/best_practices/level_two Default: TerminateConnection
loadBalancer object
LoadBalancer policy to apply when routing traffic from the gateway to the backend endpoints. Defaults to `LeastRequest`.
consistentHash object
ConsistentHash defines the configuration when the load balancer type is set to ConsistentHash
cookie object
Cookie configures the cookie hash policy when the consistent hash type is set to Cookie.
attributes object
Additional Attributes to set for the generated cookie.
name string required
Name of the cookie to hash. If this cookie does not exist in the request, Envoy will generate a cookie and set the TTL on the response back to the client based on Layer 4 attributes of the backend endpoint, to ensure that these future requests go to the same backend endpoint. Make sure to set the TTL field for this case.
ttl string
TTL of the generated cookie if the cookie is not present. This value sets the Max-Age attribute value.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
header object
Header configures the header hash policy when the consistent hash type is set to Header. Deprecated: use Headers instead
name string required
Name of the header to hash.
headers []object
Headers configures the header hash policy for each header, when the consistent hash type is set to Headers.
name string required
Name of the header to hash.
queryParams []object
QueryParams configures the query parameter hash policy when the consistent hash type is set to QueryParams.
name string required
Name of the query param to hash.
tableSize integer
The table size for consistent hashing, must be prime number limited to 5000011.
format: int64
minimum: 2
maximum: 5.000011e+06
type string required
ConsistentHashType defines the type of input to hash on. Valid Type values are "SourceIP", "Header", "Headers", "Cookie". "QueryParams".
enum: SourceIP, Header, Headers, Cookie, QueryParams
endpointOverride object
EndpointOverride defines the configuration for endpoint override. When specified, the load balancer will attempt to route requests to endpoints based on the override information extracted from request headers or metadata. If the override endpoints are not available, the configured load balancer policy will be used as fallback.
extractFrom []object required
ExtractFrom defines the sources to extract endpoint override information from.
minItems: 1
maxItems: 10
header string
Header defines the header to get the override endpoint addresses. The header value must specify at least one endpoint in `IP:Port` format or multiple endpoints in `IP:Port,IP:Port,...` format. For example `10.0.0.5:8080` or `[2600:4040:5204::1574:24ae]:80`. The IPv6 address is enclosed in square brackets.
slowStart object
SlowStart defines the configuration related to the slow start load balancer policy. If set, during slow start window, traffic sent to the newly added hosts will gradually increase. Currently this is only supported for RoundRobin and LeastRequest load balancers
window string required
Window defines the duration of the warm up period for newly added host. During slow start window, traffic sent to the newly added hosts will gradually increase. Currently only supports linear growth of traffic. For additional details, see https://www.envoyproxy.io/docs/envoy/latest/api-v3/config/cluster/v3/cluster.proto#config-cluster-v3-cluster-slowstartconfig
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
type string required
Type decides the type of Load Balancer policy. Valid LoadBalancerType values are "ConsistentHash", "LeastRequest", "Random", "RoundRobin".
enum: ConsistentHash, LeastRequest, Random, RoundRobin
zoneAware object
ZoneAware defines the configuration related to the distribution of requests between locality zones.
preferLocal object
PreferLocalZone configures zone-aware routing to prefer sending traffic to the local locality zone.
force object
ForceLocalZone defines override configuration for forcing all traffic to stay within the local zone instead of the default behavior which maintains equal distribution among upstream endpoints while sending as much traffic as possible locally.
minEndpointsInZoneThreshold integer
MinEndpointsInZoneThreshold is the minimum number of upstream endpoints in the local zone required to honor the forceLocalZone override. This is useful for protecting zones with fewer endpoints.
format: int32
minEndpointsThreshold integer
MinEndpointsThreshold is the minimum number of total upstream endpoints across all zones required to enable zone-aware routing.
format: int64
percentageEnabled integer
Configures percentage of requests that will be considered for zone aware routing if zone aware routing is configured. If not specified, Envoy defaults to 100%.
format: int32
minimum: 0
maximum: 100
proxyProtocol object
ProxyProtocol enables the Proxy Protocol when communicating with the backend.
version string required
Version of ProxyProtol Valid ProxyProtocolVersion values are "V1" "V2"
enum: V1, V2
retry object
Retry provides more advanced usage, allowing users to customize the number of retries, retry fallback strategy, and retry triggering conditions. If not set, retry will be disabled.
numAttemptsPerPriority integer
NumAttemptsPerPriority defines the number of requests (initial attempt + retries) that should be sent to the same priority before switching to a different one. If not specified or set to 0, all requests are sent to the highest priority that is healthy.
format: int32
numRetries integer
NumRetries is the number of retries to be attempted. Defaults to 2.
format: int32
minimum: 0
perRetry object
PerRetry is the retry policy to be applied per retry attempt.
backOff object
Backoff is the backoff policy to be applied per retry attempt. gateway uses a fully jittered exponential back-off algorithm for retries. For additional details, see https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_filters/router_filter#config-http-filters-router-x-envoy-max-retries
baseInterval string
BaseInterval is the base interval between retries.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
maxInterval string
MaxInterval is the maximum interval between retries. This parameter is optional, but must be greater than or equal to the base_interval if set. The default is 10 times the base_interval
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
timeout string
Timeout is the timeout per retry attempt.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
retryOn object
RetryOn specifies the retry trigger condition. If not specified, the default is to retry on connect-failure,refused-stream,unavailable,cancelled,retriable-status-codes(503).
httpStatusCodes []integer
HttpStatusCodes specifies the http status codes to be retried. The retriable-status-codes trigger must also be configured for these status codes to trigger a retry.
triggers []string
Triggers specifies the retry trigger condition(Http/Grpc).
tcpKeepalive object
TcpKeepalive settings associated with the upstream client connection. Disabled by default.
idleTime string
The duration a connection needs to be idle before keep-alive probes start being sent. The duration format is Defaults to `7200s`.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
interval string
The duration between keep-alive probes. Defaults to `75s`.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
probes integer
The total number of unacknowledged probes to send before deciding the connection is dead. Defaults to 9.
format: int32
timeout object
Timeout settings for the backend connections.
http object
Timeout settings for HTTP.
connectionIdleTimeout string
The idle timeout for an HTTP connection. Idle time is defined as a period in which there are no active requests in the connection. Default: 1 hour.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
maxConnectionDuration string
The maximum duration of an HTTP connection. Default: unlimited.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
maxStreamDuration string
MaxStreamDuration is the maximum duration for a stream to complete. This timeout measures the time from when the request is sent until the response stream is fully consumed and does not apply to non-streaming requests. When set to "0s", no max duration is applied and streams can run indefinitely.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
requestTimeout string
RequestTimeout is the time until which entire response is received from the upstream.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
tcp object
Timeout settings for TCP.
connectTimeout string
The timeout for network connection establishment, including TCP and TLS handshakes. Default: 10 seconds.
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
failOpen boolean
FailOpen is a switch used to control the behavior when failing to call the external processor. If FailOpen is set to true, the system bypasses the ExtProc extension and allows the traffic to pass through. If it is set to false or not set (defaulting to false), the system blocks the traffic and returns an HTTP 5xx error. If set to true, the ExtProc extension will also be bypassed if the configuration is invalid.
messageTimeout string
MessageTimeout is the timeout for a response to be returned from the external processor Default: 200ms
pattern: ^([0-9]{1,5}(h|m|s|ms)){1,4}$
metadata object
Metadata defines options related to the sending and receiving of dynamic metadata. These options define which metadata namespaces would be sent to the processor and which dynamic metadata namespaces the processor would be permitted to emit metadata to. Users can specify custom namespaces or well-known envoy metadata namespace (such as envoy.filters.http.ext_authz) documented here: https://www.envoyproxy.io/docs/envoy/latest/configuration/advanced/well_known_dynamic_metadata#well-known-dynamic-metadata Default: no metadata context is sent or received from the external processor
accessibleNamespaces []string
AccessibleNamespaces are metadata namespaces that are sent to the external processor as context
writableNamespaces []string
WritableNamespaces are metadata namespaces that the external processor can write to
maxItems: 8
processingMode object
ProcessingMode defines how request and response body is processed Default: header and body are not sent to the external processor
allowModeOverride boolean
AllowModeOverride allows the external processor to override the processing mode set via the `mode_override` field in the gRPC response message. This defaults to false.
request object
Defines processing mode for requests. If present, request headers are sent. Request body is processed according to the specified mode.
attributes []string
Defines which attributes are sent to the external processor. Envoy Gateway currently supports only the following attribute prefixes: connection, source, destination, request, response, upstream and xds.route. https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/advanced/attributes
body string
Defines body processing mode
enum: Streamed, Buffered, BufferedPartial, FullDuplexStreamed
response object
Defines processing mode for responses. If present, response headers are sent. Response body is processed according to the specified mode.
attributes []string
Defines which attributes are sent to the external processor. Envoy Gateway currently supports only the following attribute prefixes: connection, source, destination, request, response, upstream and xds.route. https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/advanced/attributes
body string
Defines body processing mode
enum: Streamed, Buffered, BufferedPartial, FullDuplexStreamed
lua []object
Lua is an ordered list of Lua filters that should be added to the envoy filter chain
maxItems: 16
inline string
Inline contains the source code as an inline string.
type string required
Type is the type of method to use to read the Lua value. Valid values are Inline and ValueRef, default is Inline.
enum: Inline, ValueRef
valueRef object
ValueRef has the source code specified as a local object reference. Only a reference to ConfigMap is supported. The value of key `lua` in the ConfigMap will be used. If the key is not found, the first value in the ConfigMap will be used.
group string required
Group is the group of the referent. For example, "gateway.networking.k8s.io". When unspecified or empty string, core API group is inferred.
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
maxLength: 253
kind string required
Kind is kind of the referent. For example "HTTPRoute" or "Service".
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
minLength: 1
maxLength: 63
name string required
Name is the name of the referent.
minLength: 1
maxLength: 253
targetRef object
TargetRef is the name of the resource this policy is being attached to. This policy and the TargetRef MUST be in the same namespace for this Policy to have effect Deprecated: use targetRefs/targetSelectors instead
group string required
Group is the group of the target resource.
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
maxLength: 253
kind string required
Kind is kind of the target resource.
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
minLength: 1
maxLength: 63
name string required
Name is the name of the target resource.
minLength: 1
maxLength: 253
sectionName string
SectionName is the name of a section within the target resource. When unspecified, this targetRef targets the entire resource. In the following resources, SectionName is interpreted as the following: * Gateway: Listener name * HTTPRoute: HTTPRouteRule name * Service: Port name If a SectionName is specified, but does not exist on the targeted object, the Policy must fail to attach, and the policy implementation should record a `ResolvedRefs` or similar Condition in the Policy's status.
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
minLength: 1
maxLength: 253
targetRefs []object
TargetRefs are the names of the Gateway resources this policy is being attached to.
group string required
Group is the group of the target resource.
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
maxLength: 253
kind string required
Kind is kind of the target resource.
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
minLength: 1
maxLength: 63
name string required
Name is the name of the target resource.
minLength: 1
maxLength: 253
sectionName string
SectionName is the name of a section within the target resource. When unspecified, this targetRef targets the entire resource. In the following resources, SectionName is interpreted as the following: * Gateway: Listener name * HTTPRoute: HTTPRouteRule name * Service: Port name If a SectionName is specified, but does not exist on the targeted object, the Policy must fail to attach, and the policy implementation should record a `ResolvedRefs` or similar Condition in the Policy's status.
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
minLength: 1
maxLength: 253
targetSelectors []object
TargetSelectors allow targeting resources for this policy based on labels
group string
Group is the group that this selector targets. Defaults to gateway.networking.k8s.io
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
maxLength: 253
kind string required
Kind is the resource kind that this selector targets.
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
minLength: 1
maxLength: 63
matchExpressions []object
MatchExpressions is a list of label selector requirements. The requirements are ANDed.
key string required
key is the label key that the selector applies to.
operator string required
operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.
values []string
values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.
matchLabels object
MatchLabels are the set of label selectors for identifying the targeted resource
wasm []object
Wasm is a list of Wasm extensions to be loaded by the Gateway. Order matters, as the extensions will be loaded in the order they are defined in this list.
maxItems: 16
code object required
Code is the Wasm code for the extension.
http object
HTTP is the HTTP URL containing the Wasm code. Note that the HTTP server must be accessible from the Envoy proxy.
sha256 string
SHA256 checksum that will be used to verify the Wasm code. If not specified, Envoy Gateway will not verify the downloaded Wasm code. kubebuilder:validation:Pattern=`^[a-f0-9]{64}$`
tls object
TLS configuration when connecting to the Wasm code source.
caCertificateRef object required
CACertificateRef contains a references to Kubernetes objects that contain TLS certificates of the Certificate Authorities that can be used as a trust anchor to validate the certificates presented by the Wasm code source. Kubernetes ConfigMap and Kubernetes Secret are supported. Note: The ConfigMap or Secret must be in the same namespace as the EnvoyExtensionPolicy.
group string
Group is the group of the referent. For example, "gateway.networking.k8s.io". When unspecified or empty string, core API group is inferred.
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
maxLength: 253
kind string
Kind is kind of the referent. For example "Secret".
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
minLength: 1
maxLength: 63
name string required
Name is the name of the referent.
minLength: 1
maxLength: 253
namespace string
Namespace is the namespace of the referenced object. When unspecified, the local namespace is inferred. Note that when a namespace different than the local namespace is specified, a ReferenceGrant object is required in the referent namespace to allow that namespace's owner to accept the reference. See the ReferenceGrant documentation for details. Support: Core
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
minLength: 1
maxLength: 63
url string required
URL is the URL containing the Wasm code.
pattern: ^((https?:)(\/\/\/?)([\w]*(?::[\w]*)?@)?([\d\w\.-]+)(?::(\d+))?)?([\/\\\w\.()-]*)?(?:([?][^#]*)?(#.*)?)*
image object
Image is the OCI image containing the Wasm code. Note that the image must be accessible from the Envoy Gateway.
pullSecretRef object
PullSecretRef is a reference to the secret containing the credentials to pull the image. Only support Kubernetes Secret resource from the same namespace.
group string
Group is the group of the referent. For example, "gateway.networking.k8s.io". When unspecified or empty string, core API group is inferred.
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
maxLength: 253
kind string
Kind is kind of the referent. For example "Secret".
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
minLength: 1
maxLength: 63
name string required
Name is the name of the referent.
minLength: 1
maxLength: 253
namespace string
Namespace is the namespace of the referenced object. When unspecified, the local namespace is inferred. Note that when a namespace different than the local namespace is specified, a ReferenceGrant object is required in the referent namespace to allow that namespace's owner to accept the reference. See the ReferenceGrant documentation for details. Support: Core
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
minLength: 1
maxLength: 63
sha256 string
SHA256 checksum that will be used to verify the OCI image. It must match the digest of the OCI image. If not specified, Envoy Gateway will not verify the downloaded OCI image. kubebuilder:validation:Pattern=`^[a-f0-9]{64}$`
tls object
TLS configuration when connecting to the Wasm code source.
caCertificateRef object required
CACertificateRef contains a references to Kubernetes objects that contain TLS certificates of the Certificate Authorities that can be used as a trust anchor to validate the certificates presented by the Wasm code source. Kubernetes ConfigMap and Kubernetes Secret are supported. Note: The ConfigMap or Secret must be in the same namespace as the EnvoyExtensionPolicy.
group string
Group is the group of the referent. For example, "gateway.networking.k8s.io". When unspecified or empty string, core API group is inferred.
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
maxLength: 253
kind string
Kind is kind of the referent. For example "Secret".
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
minLength: 1
maxLength: 63
name string required
Name is the name of the referent.
minLength: 1
maxLength: 253
namespace string
Namespace is the namespace of the referenced object. When unspecified, the local namespace is inferred. Note that when a namespace different than the local namespace is specified, a ReferenceGrant object is required in the referent namespace to allow that namespace's owner to accept the reference. See the ReferenceGrant documentation for details. Support: Core
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
minLength: 1
maxLength: 63
url string required
URL is the URL of the OCI image. URL can be in the format of `registry/image:tag` or `registry/image@sha256:digest`.
pullPolicy string
PullPolicy is the policy to use when pulling the Wasm module by either the HTTP or Image source. This field is only applicable when the SHA256 field is not set. If not specified, the default policy is IfNotPresent except for OCI images whose tag is latest. Note: EG does not update the Wasm module every time an Envoy proxy requests the Wasm module even if the pull policy is set to Always. It only updates the Wasm module when the EnvoyExtension resource version changes.
enum: IfNotPresent, Always
type string required
Type is the type of the source of the Wasm code. Valid WasmCodeSourceType values are "HTTP" or "Image".
config object
Config is the configuration for the Wasm extension. This configuration will be passed as a JSON string to the Wasm extension.
env object
Env configures the environment for the Wasm extension
hostKeys []string
HostKeys is a list of keys for environment variables from the host envoy process that should be passed into the Wasm VM. This is useful for passing secrets to to Wasm extensions.
failOpen boolean
FailOpen is a switch used to control the behavior when a fatal error occurs during the initialization or the execution of the Wasm extension. If FailOpen is set to true, the system bypasses the Wasm extension and allows the traffic to pass through. If it is set to false or not set (defaulting to false), the system blocks the traffic and returns an HTTP 5xx error. If set to true, the Wasm extension will also be bypassed if the configuration is invalid.
name string
Name is a unique name for this Wasm extension. It is used to identify the Wasm extension if multiple extensions are handled by the same vm_id and root_id. It's also used for logging/debugging. If not specified, EG will generate a unique name for the Wasm extension.
rootID string
RootID is a unique ID for a set of extensions in a VM which will share a RootContext and Contexts if applicable (e.g., an Wasm HttpFilter and an Wasm AccessLog). If left blank, all extensions with a blank root_id with the same vm_id will share Context(s). Note: RootID must match the root_id parameter used to register the Context in the Wasm code.
status object
Status defines the current status of EnvoyExtensionPolicy.
ancestors []object required
Ancestors is a list of ancestor resources (usually Gateways) that are associated with the policy, and the status of the policy with respect to each ancestor. When this policy attaches to a parent, the controller that manages the parent and the ancestors MUST add an entry to this list when the controller first sees the policy and SHOULD update the entry as appropriate when the relevant ancestor is modified. Note that choosing the relevant ancestor is left to the Policy designers; an important part of Policy design is designing the right object level at which to namespace this status. Note also that implementations MUST ONLY populate ancestor status for the Ancestor resources they are responsible for. Implementations MUST use the ControllerName field to uniquely identify the entries in this list that they are responsible for. Note that to achieve this, the list of PolicyAncestorStatus structs MUST be treated as a map with a composite key, made up of the AncestorRef and ControllerName fields combined. A maximum of 16 ancestors will be represented in this list. An empty list means the Policy is not relevant for any ancestors. If this slice is full, implementations MUST NOT add further entries. Instead they MUST consider the policy unimplementable and signal that on any related resources such as the ancestor that would be referenced here. For example, if this list was full on BackendTLSPolicy, no additional Gateways would be able to reference the Service targeted by the BackendTLSPolicy.
maxItems: 16
ancestorRef object required
AncestorRef corresponds with a ParentRef in the spec that this PolicyAncestorStatus struct describes the status of.
group string
Group is the group of the referent. When unspecified, "gateway.networking.k8s.io" is inferred. To set the core API group (such as for a "Service" kind referent), Group must be explicitly set to "" (empty string). Support: Core
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
maxLength: 253
kind string
Kind is kind of the referent. There are two kinds of parent resources with "Core" support: * Gateway (Gateway conformance profile) * Service (Mesh conformance profile, ClusterIP Services only) Support for other resources is Implementation-Specific.
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
minLength: 1
maxLength: 63
name string required
Name is the name of the referent. Support: Core
minLength: 1
maxLength: 253
namespace string
Namespace is the namespace of the referent. When unspecified, this refers to the local namespace of the Route. Note that there are specific rules for ParentRefs which cross namespace boundaries. Cross-namespace references are only valid if they are explicitly allowed by something in the namespace they are referring to. For example: Gateway has the AllowedRoutes field, and ReferenceGrant provides a generic way to enable any other kind of cross-namespace reference. <gateway:experimental:description> ParentRefs from a Route to a Service in the same namespace are "producer" routes, which apply default routing rules to inbound connections from any namespace to the Service. ParentRefs from a Route to a Service in a different namespace are "consumer" routes, and these routing rules are only applied to outbound connections originating from the same namespace as the Route, for which the intended destination of the connections are a Service targeted as a ParentRef of the Route. </gateway:experimental:description> Support: Core
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
minLength: 1
maxLength: 63
port integer
Port is the network port this Route targets. It can be interpreted differently based on the type of parent resource. When the parent resource is a Gateway, this targets all listeners listening on the specified port that also support this kind of Route(and select this Route). It's not recommended to set `Port` unless the networking behaviors specified in a Route must apply to a specific port as opposed to a listener(s) whose port(s) may be changed. When both Port and SectionName are specified, the name and port of the selected listener must match both specified values. <gateway:experimental:description> When the parent resource is a Service, this targets a specific port in the Service spec. When both Port (experimental) and SectionName are specified, the name and port of the selected port must match both specified values. </gateway:experimental:description> Implementations MAY choose to support other parent resources. Implementations supporting other types of parent resources MUST clearly document how/if Port is interpreted. For the purpose of status, an attachment is considered successful as long as the parent resource accepts it partially. For example, Gateway listeners can restrict which Routes can attach to them by Route kind, namespace, or hostname. If 1 of 2 Gateway listeners accept attachment from the referencing Route, the Route MUST be considered successfully attached. If no Gateway listeners accept attachment from this Route, the Route MUST be considered detached from the Gateway. Support: Extended
format: int32
minimum: 1
maximum: 65535
sectionName string
SectionName is the name of a section within the target resource. In the following resources, SectionName is interpreted as the following: * Gateway: Listener name. When both Port (experimental) and SectionName are specified, the name and port of the selected listener must match both specified values. * Service: Port name. When both Port (experimental) and SectionName are specified, the name and port of the selected listener must match both specified values. Implementations MAY choose to support attaching Routes to other resources. If that is the case, they MUST clearly document how SectionName is interpreted. When unspecified (empty string), this will reference the entire resource. For the purpose of status, an attachment is considered successful if at least one section in the parent resource accepts it. For example, Gateway listeners can restrict which Routes can attach to them by Route kind, namespace, or hostname. If 1 of 2 Gateway listeners accept attachment from the referencing Route, the Route MUST be considered successfully attached. If no Gateway listeners accept attachment from this Route, the Route MUST be considered detached from the Gateway. Support: Core
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
minLength: 1
maxLength: 253
conditions []object required
Conditions describes the status of the Policy with respect to the given Ancestor. <gateway:util:excludeFromCRD> Notes for implementors: Conditions are a listType `map`, which means that they function like a map with a key of the `type` field _in the k8s apiserver_. This means that implementations must obey some rules when updating this section. * Implementations MUST perform a read-modify-write cycle on this field before modifying it. That is, when modifying this field, implementations must be confident they have fetched the most recent version of this field, and ensure that changes they make are on that recent version. * Implementations MUST NOT remove or reorder Conditions that they are not directly responsible for. For example, if an implementation sees a Condition with type `special.io/SomeField`, it MUST NOT remove, change or update that Condition. * Implementations MUST always _merge_ changes into Conditions of the same Type, rather than creating more than one Condition of the same Type. * Implementations MUST always update the `observedGeneration` field of the Condition to the `metadata.generation` of the Gateway at the time of update creation. * If the `observedGeneration` of a Condition is _greater than_ the value the implementation knows about, then it MUST NOT perform the update on that Condition, but must wait for a future reconciliation and status update. (The assumption is that the implementation's copy of the object is stale and an update will be re-triggered if relevant.) </gateway:util:excludeFromCRD>
minItems: 1
maxItems: 8
lastTransitionTime string required
lastTransitionTime is the last time the condition transitioned from one status to another. This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable.
format: date-time
message string required
message is a human readable message indicating details about the transition. This may be an empty string.
maxLength: 32768
observedGeneration integer
observedGeneration represents the .metadata.generation that the condition was set based upon. For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date with respect to the current state of the instance.
format: int64
minimum: 0
reason string required
reason contains a programmatic identifier indicating the reason for the condition's last transition. Producers of specific condition types may define expected values and meanings for this field, and whether the values are considered a guaranteed API. The value should be a CamelCase string. This field may not be empty.
pattern: ^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$
minLength: 1
maxLength: 1024
status string required
status of the condition, one of True, False, Unknown.
enum: True, False, Unknown
type string required
type of condition in CamelCase or in foo.example.com/CamelCase.
pattern: ^([a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*/)?(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])$
maxLength: 316
controllerName string required
ControllerName is a domain/path string that indicates the name of the controller that wrote this status. This corresponds with the controllerName field on GatewayClass. Example: "example.net/gateway-controller". The format of this field is DOMAIN "/" PATH, where DOMAIN and PATH are valid Kubernetes names (https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names). Controllers MUST populate this field when writing status. Controllers should ensure that entries to status populated with their ControllerName are cleaned up when they are no longer necessary.
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*\/[A-Za-z0-9\/\-._~%!$&'()*+,;=:]+$
minLength: 1
maxLength: 253
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