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

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Ansible/docs/2.11/collections/community/kubernetes/k8s cluster info module


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

Note

This plugin is part of the community.kubernetes collection (version 1.1.1).

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

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


New in version 0.11.1: of community.kubernetes


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.

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

  • 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

  • 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

  • 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
  community.kubernetes.k8s_cluster_info:
  register: api_status

- name: Do not invalidate cache before getting information
  community.kubernetes.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)

© 2012–2018 Michael DeHaan
© 2018–2021 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.11/collections/community/kubernetes/k8s_cluster_info_module.html