kubernetes.core.k8s_cluster_info – Describe Kubernetes (K8s) cluster, APIs available and their respective versions

Note

This plugin is part of the kubernetes.core collection (version 1.2.1).

To install it use: ansible-galaxy collection install kubernetes.core.

To use it in a playbook, specify: kubernetes.core.k8s_cluster_info.

New in version 0.11.1: of kubernetes.core

Synopsis

• Use the OpenShift Python client to perform read operations on K8s objects.

• Authenticate using either a config file, certificates, password or token.

• Supports check mode.

Note

This module has a corresponding action plugin.

Requirements

The below requirements are needed on the host that executes this module.

• python >= 2.7

• openshift >= 0.6

• PyYAML >= 3.11

Parameters

Parameter	Choices/Defaults	Comments
api_key string		Token used to authenticate with the API. Can also be specified via K8S_AUTH_API_KEY environment variable.
ca_cert path		Path to a CA certificate used to authenticate with the API. The full certificate chain must be provided to avoid certificate validation errors. Can also be specified via K8S_AUTH_SSL_CA_CERT environment variable. aliases: ssl_ca_cert
client_cert path		Path to a certificate used to authenticate with the API. Can also be specified via K8S_AUTH_CERT_FILE environment variable. aliases: cert_file
client_key path		Path to a key file used to authenticate with the API. Can also be specified via K8S_AUTH_KEY_FILE environment variable. aliases: key_file
context string		The name of a context found in the config file. Can also be specified via K8S_AUTH_CONTEXT environment variable.
host string		Provide a URL for accessing the API. Can also be specified via K8S_AUTH_HOST environment variable.
invalidate_cache boolean	Choices: no yes ←	Invalidate cache before retrieving information about cluster.
kubeconfig path		Path to an existing Kubernetes config file. If not provided, and no other connection options are provided, the openshift client will attempt to load the default configuration file from ~/.kube/config.json. Can also be specified via K8S_AUTH_KUBECONFIG environment variable.
password string		Provide a password for authenticating with the API. Can also be specified via K8S_AUTH_PASSWORD environment variable. Please read the description of the username option for a discussion of when this option is applicable.
persist_config boolean	Choices: no yes	Whether or not to save the kube config refresh tokens. Can also be specified via K8S_AUTH_PERSIST_CONFIG environment variable. When the k8s context is using a user credentials with refresh tokens (like oidc or gke/gcloud auth), the token is refreshed by the k8s python client library but not saved by default. So the old refresh token can expire and the next auth might fail. Setting this flag to true will tell the k8s python client to save the new refresh token to the kube config file. Default to false. Please note that the current version of the k8s python client library does not support setting this flag to True yet. The fix for this k8s python library is here: https://github.com/kubernetes-client/python-base/pull/169
proxy string		The URL of an HTTP proxy to use for the connection. Can also be specified via K8S_AUTH_PROXY environment variable. Please note that this module does not pick up typical proxy settings from the environment (e.g. HTTP_PROXY).
username string		Provide a username for authenticating with the API. Can also be specified via K8S_AUTH_USERNAME environment variable. Please note that this only works with clusters configured to use HTTP Basic Auth. If your cluster has a different form of authentication (e.g. OAuth2 in OpenShift), this option will not work as expected and you should look into the k8s_auth module, as that might do what you need.
validate_certs boolean	Choices: no yes	Whether or not to verify the API server's SSL certificates. Can also be specified via K8S_AUTH_VERIFY_SSL environment variable. aliases: verify_ssl

Notes

Note

• The OpenShift Python client wraps the K8s Python client, providing full access to all of the APIS and models available on both platforms. For API version details and additional information visit https://github.com/openshift/openshift-restclient-python

• To avoid SSL certificate validation errors when validate_certs is True, the full certificate chain for the API server must be provided via ca_cert or in the kubeconfig file.

Examples

- name: Get Cluster information
  kubernetes.core.k8s_cluster_info:
  register: api_status

- name: Do not invalidate cache before getting information
  kubernetes.core.k8s_cluster_info:
    invalidate_cache: False
  register: api_status

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key		Returned	Description
apis dictionary		success	The API(s) that exists in dictionary
	api_version string	success	API version
	available_api_version list / elements=string	success	All available versions of the given API
	categories list / elements=string	success	API categories
	group_version string	success	Resource Group version
	kind string	success	Resource kind
	name string	success	Resource short name
	namespaced boolean	success	If resource is namespaced
	preferred boolean	success	If resource version preferred
	preferred_api_version string	success	Preferred version of the given API
	short_names string	success	Resource short names
	singular_name string	success	Resource singular name
connection dictionary		success	Connection information
	cert_file string	success	Path to client certificate.
	host string	success	Host URL
	password string	success	User password
	proxy string	success	Proxy details
	ssl_ca_cert string	success	Path to CA certificate
	username string	success	Username
	verify_ssl boolean	success	SSL verification status
version dictionary		success	Information about server and client version
	client string	success	Client version
	server dictionary	success	Server version

Authors

• Abhijeet Kasurde (@Akasurde)