Querying an APIGroup (/apis/metrics.k8s.io)

Function

This API is used to query an APIGroup (/apis/metrics.k8s.io).

Calling Method

For details, see Calling APIs.

URI

GET /apis/metrics.k8s.io

Request Parameters

**Table 1** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. It can be obtained through the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is the user token.

Response Parameters

Status code: 200

**Table 2** Response body parameters
Parameter	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/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/api-conventions.md#types-kinds
name	String	name is the name of the group.
preferredVersion	io.k8s.apimachinery.pkg.apis.meta.v1.GroupVersionForDiscovery object	preferredVersion is the version preferred by the API server, which probably is the storage version.
serverAddressByClientCIDRs	Array of io.k8s.apimachinery.pkg.apis.meta.v1.ServerAddressByClientCIDR objects	a map of client CIDR to server address that is serving this group. This is to help clients reach servers in the most network-efficient way possible. Clients can use the appropriate server address as per the CIDR that they match. In case of multiple matches, clients should use the longest matching CIDR. The server returns only those CIDRs that it thinks that the client can match. For example: the master will return an internal IP CIDR only, if the client reaches the server using an internal IP. Server looks at X-Forwarded-For header or X-Real-Ip header or request.RemoteAddr (in that order) to get the client IP.
versions	Array of io.k8s.apimachinery.pkg.apis.meta.v1.GroupVersionForDiscovery objects	versions are the versions supported in this group.

**Table 3** io.k8s.apimachinery.pkg.apis.meta.v1.GroupVersionForDiscovery
Parameter	Type	Description
groupVersion	String	groupVersion specifies the API group and version in the form "group/version"
version	String	version specifies the version in the form of "version". This is to save the clients the trouble of splitting the GroupVersion.

**Table 4** io.k8s.apimachinery.pkg.apis.meta.v1.ServerAddressByClientCIDR
Parameter	Type	Description
clientCIDR	String	The CIDR with which clients can match their IP to figure out the server address that they should use.
serverAddress	String	Address of this server, suitable for a client that matches the above CIDR. This can be a hostname, hostname:port, IP or IP:port.

Example Requests

None

Example Responses

Status code: 200

{
  "apiVersion" : "v1",
  "kind" : "APIGroup",
  "name" : "metrics.k8s.io",
  "preferredVersion" : {
    "groupVersion" : "metrics.k8s.io/v1beta1",
    "version" : "v1beta1"
  },
  "versions" : [ {
    "groupVersion" : "metrics.k8s.io/v1beta1",
    "version" : "v1beta1"
  } ]
}

Status Codes

Status Code	Description
200	OK
400	BadRequest
401	Unauthorized
403	Forbidden
404	NotFound
405	MethodNotAllowed
406	NotAcceptable
409	Conflict
415	UnsupportedMediaType
422	Invalid
429	TooManyRequests
500	InternalError
503	ServiceUnavailable
504	ServerTimeout