Chapter 11. Ingress [networking.k8s.io/v1] Description Ingress is a collection of rules that allow inbound connections to reach the endpoints defined by a backend. An Ingress can be configured to give services externally-reachable urls, load balance traffic, terminate SSL, offer name based virtual hosting etc. Type object 11.1. Specification Property Type Description 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 ObjectMeta Standard object's metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata spec object IngressSpec describes the Ingress the user wishes to exist. status object IngressStatus describe the current state of the Ingress. 11.1.1. .spec Description IngressSpec describes the Ingress the user wishes to exist. Type object Property Type Description defaultBackend object IngressBackend describes all endpoints for a given service and port. ingressClassName string ingressClassName is the name of an IngressClass cluster resource. Ingress controller implementations use this field to know whether they should be serving this Ingress resource, by a transitive connection (controller IngressClass Ingress resource). Although the kubernetes.io/ingress.class annotation (simple constant name) was never formally defined, it was widely supported by Ingress controllers to create a direct binding between Ingress controller and Ingress resources. Newly created Ingress resources should prefer using the field. However, even though the annotation is officially deprecated, for backwards compatibility reasons, ingress controllers should still honor that annotation if present. rules array rules is a list of host rules used to configure the Ingress. If unspecified, or no rule matches, all traffic is sent to the default backend. rules[] object IngressRule represents the rules mapping the paths under a specified host to the related backend services. Incoming requests are first evaluated for a host match, then routed to the backend associated with the matching IngressRuleValue. tls array tls represents the TLS configuration. Currently the Ingress only supports a single TLS port, 443. If multiple members of this list specify different hosts, they will be multiplexed on the same port according to the hostname specified through the SNI TLS extension, if the ingress controller fulfilling the ingress supports SNI. tls[] object IngressTLS describes the transport layer security associated with an ingress. 11.1.2. .spec.defaultBackend Description IngressBackend describes all endpoints for a given service and port. Type object Property Type Description resource TypedLocalObjectReference resource is an ObjectRef to another Kubernetes resource in the namespace of the Ingress object. If resource is specified, a service.Name and service.Port must not be specified. This is a mutually exclusive setting with "Service". service object IngressServiceBackend references a Kubernetes Service as a Backend. 11.1.3. .spec.defaultBackend.service Description IngressServiceBackend references a Kubernetes Service as a Backend. Type object Required name Property Type Description name string name is the referenced service. The service must exist in the same namespace as the Ingress object. port object ServiceBackendPort is the service port being referenced. 11.1.4. .spec.defaultBackend.service.port Description ServiceBackendPort is the service port being referenced. Type object Property Type Description name string name is the name of the port on the Service. This is a mutually exclusive setting with "Number". number integer number is the numerical port number (e.g. 80) on the Service. This is a mutually exclusive setting with "Name". 11.1.5. .spec.rules Description rules is a list of host rules used to configure the Ingress. If unspecified, or no rule matches, all traffic is sent to the default backend. Type array 11.1.6. .spec.rules[] Description IngressRule represents the rules mapping the paths under a specified host to the related backend services. Incoming requests are first evaluated for a host match, then routed to the backend associated with the matching IngressRuleValue. Type object Property Type Description host string host is the fully qualified domain name of a network host, as defined by RFC 3986. Note the following deviations from the "host" part of the URI as defined in RFC 3986: 1. IPs are not allowed. Currently an IngressRuleValue can only apply to the IP in the Spec of the parent Ingress. 2. The : delimiter is not respected because ports are not allowed. Currently the port of an Ingress is implicitly :80 for http and :443 for https. Both these may change in the future. Incoming requests are matched against the host before the IngressRuleValue. If the host is unspecified, the Ingress routes all traffic based on the specified IngressRuleValue. host can be "precise" which is a domain name without the terminating dot of a network host (e.g. "foo.bar.com") or "wildcard", which is a domain name prefixed with a single wildcard label (e.g. " .foo.com"). The wildcard character ' ' must appear by itself as the first DNS label and matches only a single label. You cannot have a wildcard label by itself (e.g. Host == "*"). Requests will be matched against the Host field in the following way: 1. If host is precise, the request matches this rule if the http host header is equal to Host. 2. If host is a wildcard, then the request matches this rule if the http host header is to equal to the suffix (removing the first label) of the wildcard rule. http object HTTPIngressRuleValue is a list of http selectors pointing to backends. In the example: http://<host>/<path>?<searchpart> backend where where parts of the url correspond to RFC 3986, this resource will be used to match against everything after the last '/' and before the first '?' or '#'. 11.1.7. .spec.rules[].http Description HTTPIngressRuleValue is a list of http selectors pointing to backends. In the example: http://<host>/<path>?<searchpart> backend where where parts of the url correspond to RFC 3986, this resource will be used to match against everything after the last '/' and before the first '?' or '#'. Type object Required paths Property Type Description paths array paths is a collection of paths that map requests to backends. paths[] object HTTPIngressPath associates a path with a backend. Incoming urls matching the path are forwarded to the backend. 11.1.8. .spec.rules[].http.paths Description paths is a collection of paths that map requests to backends. Type array 11.1.9. .spec.rules[].http.paths[] Description HTTPIngressPath associates a path with a backend. Incoming urls matching the path are forwarded to the backend. Type object Required pathType backend Property Type Description backend object IngressBackend describes all endpoints for a given service and port. path string path is matched against the path of an incoming request. Currently it can contain characters disallowed from the conventional "path" part of a URL as defined by RFC 3986. Paths must begin with a '/' and must be present when using PathType with value "Exact" or "Prefix". pathType string pathType determines the interpretation of the path matching. PathType can be one of the following values: * Exact: Matches the URL path exactly. * Prefix: Matches based on a URL path prefix split by '/'. Matching is done on a path element by element basis. A path element refers is the list of labels in the path split by the '/' separator. A request is a match for path p if every p is an element-wise prefix of p of the request path. Note that if the last element of the path is a substring of the last element in request path, it is not a match (e.g. /foo/bar matches /foo/bar/baz, but does not match /foo/barbaz). * ImplementationSpecific: Interpretation of the Path matching is up to the IngressClass. Implementations can treat this as a separate PathType or treat it identically to Prefix or Exact path types. Implementations are required to support all path types. Possible enum values: - "Exact" matches the URL path exactly and with case sensitivity. - "ImplementationSpecific" matching is up to the IngressClass. Implementations can treat this as a separate PathType or treat it identically to Prefix or Exact path types. - "Prefix" matches based on a URL path prefix split by '/'. Matching is case sensitive and done on a path element by element basis. A path element refers to the list of labels in the path split by the '/' separator. A request is a match for path p if every p is an element-wise prefix of p of the request path. Note that if the last element of the path is a substring of the last element in request path, it is not a match (e.g. /foo/bar matches /foo/bar/baz, but does not match /foo/barbaz). If multiple matching paths exist in an Ingress spec, the longest matching path is given priority. Examples: - /foo/bar does not match requests to /foo/barbaz - /foo/bar matches request to /foo/bar and /foo/bar/baz - /foo and /foo/ both match requests to /foo and /foo/. If both paths are present in an Ingress spec, the longest matching path (/foo/) is given priority. 11.1.10. .spec.rules[].http.paths[].backend Description IngressBackend describes all endpoints for a given service and port. Type object Property Type Description resource TypedLocalObjectReference resource is an ObjectRef to another Kubernetes resource in the namespace of the Ingress object. If resource is specified, a service.Name and service.Port must not be specified. This is a mutually exclusive setting with "Service". service object IngressServiceBackend references a Kubernetes Service as a Backend. 11.1.11. .spec.rules[].http.paths[].backend.service Description IngressServiceBackend references a Kubernetes Service as a Backend. Type object Required name Property Type Description name string name is the referenced service. The service must exist in the same namespace as the Ingress object. port object ServiceBackendPort is the service port being referenced. 11.1.12. .spec.rules[].http.paths[].backend.service.port Description ServiceBackendPort is the service port being referenced. Type object Property Type Description name string name is the name of the port on the Service. This is a mutually exclusive setting with "Number". number integer number is the numerical port number (e.g. 80) on the Service. This is a mutually exclusive setting with "Name". 11.1.13. .spec.tls Description tls represents the TLS configuration. Currently the Ingress only supports a single TLS port, 443. If multiple members of this list specify different hosts, they will be multiplexed on the same port according to the hostname specified through the SNI TLS extension, if the ingress controller fulfilling the ingress supports SNI. Type array 11.1.14. .spec.tls[] Description IngressTLS describes the transport layer security associated with an ingress. Type object Property Type Description hosts array (string) hosts is a list of hosts included in the TLS certificate. The values in this list must match the name/s used in the tlsSecret. Defaults to the wildcard host setting for the loadbalancer controller fulfilling this Ingress, if left unspecified. secretName string secretName is the name of the secret used to terminate TLS traffic on port 443. Field is left optional to allow TLS routing based on SNI hostname alone. If the SNI host in a listener conflicts with the "Host" header field used by an IngressRule, the SNI host is used for termination and value of the "Host" header is used for routing. 11.1.15. .status Description IngressStatus describe the current state of the Ingress. Type object Property Type Description loadBalancer object IngressLoadBalancerStatus represents the status of a load-balancer. 11.1.16. .status.loadBalancer Description IngressLoadBalancerStatus represents the status of a load-balancer. Type object Property Type Description ingress array ingress is a list containing ingress points for the load-balancer. ingress[] object IngressLoadBalancerIngress represents the status of a load-balancer ingress point. 11.1.17. .status.loadBalancer.ingress Description ingress is a list containing ingress points for the load-balancer. Type array 11.1.18. .status.loadBalancer.ingress[] Description IngressLoadBalancerIngress represents the status of a load-balancer ingress point. Type object Property Type Description hostname string hostname is set for load-balancer ingress points that are DNS based. ip string ip is set for load-balancer ingress points that are IP based. ports array ports provides information about the ports exposed by this LoadBalancer. ports[] object IngressPortStatus represents the error condition of a service port 11.1.19. .status.loadBalancer.ingress[].ports Description ports provides information about the ports exposed by this LoadBalancer. Type array 11.1.20. .status.loadBalancer.ingress[].ports[] Description IngressPortStatus represents the error condition of a service port Type object Required port protocol Property Type Description error string error is to record the problem with the service port The format of the error shall comply with the following rules: - built-in error values shall be specified in this file and those shall use CamelCase names - cloud provider specific error values must have names that comply with the format foo.example.com/CamelCase. port integer port is the port number of the ingress port. protocol string protocol is the protocol of the ingress port. The supported values are: "TCP", "UDP", "SCTP" Possible enum values: - "SCTP" is the SCTP protocol. - "TCP" is the TCP protocol. - "UDP" is the UDP protocol. 11.2. API endpoints The following API endpoints are available: /apis/networking.k8s.io/v1/ingresses GET : list or watch objects of kind Ingress /apis/networking.k8s.io/v1/watch/ingresses GET : watch individual changes to a list of Ingress. deprecated: use the 'watch' parameter with a list operation instead. /apis/networking.k8s.io/v1/namespaces/{namespace}/ingresses DELETE : delete collection of Ingress GET : list or watch objects of kind Ingress POST : create an Ingress /apis/networking.k8s.io/v1/watch/namespaces/{namespace}/ingresses GET : watch individual changes to a list of Ingress. deprecated: use the 'watch' parameter with a list operation instead. /apis/networking.k8s.io/v1/namespaces/{namespace}/ingresses/{name} DELETE : delete an Ingress GET : read the specified Ingress PATCH : partially update the specified Ingress PUT : replace the specified Ingress /apis/networking.k8s.io/v1/watch/namespaces/{namespace}/ingresses/{name} GET : watch changes to an object of kind Ingress. deprecated: use the 'watch' parameter with a list operation instead, filtered to a single item with the 'fieldSelector' parameter. /apis/networking.k8s.io/v1/namespaces/{namespace}/ingresses/{name}/status GET : read status of the specified Ingress PATCH : partially update status of the specified Ingress PUT : replace status of the specified Ingress 11.2.1. /apis/networking.k8s.io/v1/ingresses HTTP method GET Description list or watch objects of kind Ingress Table 11.1. HTTP responses HTTP code Reponse body 200 - OK IngressList schema 401 - Unauthorized Empty 11.2.2. /apis/networking.k8s.io/v1/watch/ingresses HTTP method GET Description watch individual changes to a list of Ingress. deprecated: use the 'watch' parameter with a list operation instead. Table 11.2. HTTP responses HTTP code Reponse body 200 - OK WatchEvent schema 401 - Unauthorized Empty 11.2.3. /apis/networking.k8s.io/v1/namespaces/{namespace}/ingresses HTTP method DELETE Description delete collection of Ingress Table 11.3. Query parameters Parameter Type Description dryRun string When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed Table 11.4. HTTP responses HTTP code Reponse body 200 - OK Status schema 401 - Unauthorized Empty HTTP method GET Description list or watch objects of kind Ingress Table 11.5. HTTP responses HTTP code Reponse body 200 - OK IngressList schema 401 - Unauthorized Empty HTTP method POST Description create an Ingress Table 11.6. Query parameters Parameter Type Description dryRun string When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed fieldValidation string fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered. Table 11.7. Body parameters Parameter Type Description body Ingress schema Table 11.8. HTTP responses HTTP code Reponse body 200 - OK Ingress schema 201 - Created Ingress schema 202 - Accepted Ingress schema 401 - Unauthorized Empty 11.2.4. /apis/networking.k8s.io/v1/watch/namespaces/{namespace}/ingresses HTTP method GET Description watch individual changes to a list of Ingress. deprecated: use the 'watch' parameter with a list operation instead. Table 11.9. HTTP responses HTTP code Reponse body 200 - OK WatchEvent schema 401 - Unauthorized Empty 11.2.5. /apis/networking.k8s.io/v1/namespaces/{namespace}/ingresses/{name} Table 11.10. Global path parameters Parameter Type Description name string name of the Ingress HTTP method DELETE Description delete an Ingress Table 11.11. Query parameters Parameter Type Description dryRun string When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed Table 11.12. HTTP responses HTTP code Reponse body 200 - OK Status schema 202 - Accepted Status schema 401 - Unauthorized Empty HTTP method GET Description read the specified Ingress Table 11.13. HTTP responses HTTP code Reponse body 200 - OK Ingress schema 401 - Unauthorized Empty HTTP method PATCH Description partially update the specified Ingress Table 11.14. Query parameters Parameter Type Description dryRun string When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed fieldValidation string fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered. Table 11.15. HTTP responses HTTP code Reponse body 200 - OK Ingress schema 201 - Created Ingress schema 401 - Unauthorized Empty HTTP method PUT Description replace the specified Ingress Table 11.16. Query parameters Parameter Type Description dryRun string When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed fieldValidation string fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered. Table 11.17. Body parameters Parameter Type Description body Ingress schema Table 11.18. HTTP responses HTTP code Reponse body 200 - OK Ingress schema 201 - Created Ingress schema 401 - Unauthorized Empty 11.2.6. /apis/networking.k8s.io/v1/watch/namespaces/{namespace}/ingresses/{name} Table 11.19. Global path parameters Parameter Type Description name string name of the Ingress HTTP method GET Description watch changes to an object of kind Ingress. deprecated: use the 'watch' parameter with a list operation instead, filtered to a single item with the 'fieldSelector' parameter. Table 11.20. HTTP responses HTTP code Reponse body 200 - OK WatchEvent schema 401 - Unauthorized Empty 11.2.7. /apis/networking.k8s.io/v1/namespaces/{namespace}/ingresses/{name}/status Table 11.21. Global path parameters Parameter Type Description name string name of the Ingress HTTP method GET Description read status of the specified Ingress Table 11.22. HTTP responses HTTP code Reponse body 200 - OK Ingress schema 401 - Unauthorized Empty HTTP method PATCH Description partially update status of the specified Ingress Table 11.23. Query parameters Parameter Type Description dryRun string When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed fieldValidation string fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered. Table 11.24. HTTP responses HTTP code Reponse body 200 - OK Ingress schema 201 - Created Ingress schema 401 - Unauthorized Empty HTTP method PUT Description replace status of the specified Ingress Table 11.25. Query parameters Parameter Type Description dryRun string When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed fieldValidation string fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered. Table 11.26. Body parameters Parameter Type Description body Ingress schema Table 11.27. HTTP responses HTTP code Reponse body 200 - OK Ingress schema 201 - Created Ingress schema 401 - Unauthorized Empty

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