kubernetes.core.k8s_cluster_info (3.0.1) — module

Describe Kubernetes (K8s) cluster, APIs available and their respective versions

| "added in version" 0.11.1 of kubernetes.core"

Authors: Abhijeet Kasurde (@Akasurde)

This plugin has a corresponding action plugin.

Install collection

Install with ansible-galaxy collection install kubernetes.core:==3.0.1


Add to requirements.yml

  collections:
    - name: kubernetes.core
      version: 3.0.1

Description

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

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

Supports check mode.


Requirements

Usage examples

  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
- name: Get Cluster information
  kubernetes.core.k8s_cluster_info:
  register: api_status
  • Success
    Steampunk Spotter scan finished with no errors, warnings or hints.
- name: Do not invalidate cache before getting information
  kubernetes.core.k8s_cluster_info:
    invalidate_cache: False
  register: api_status

Inputs

    
host:
    description:
    - Provide a URL for accessing the API. Can also be specified via K8S_AUTH_HOST environment
      variable.
    type: str

proxy:
    description:
    - 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).
    type: str

api_key:
    description:
    - Token used to authenticate with the API. Can also be specified via K8S_AUTH_API_KEY
      environment variable.
    type: str

ca_cert:
    aliases:
    - ssl_ca_cert
    description:
    - 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.
    type: path

context:
    description:
    - The name of a context found in the config file. Can also be specified via K8S_AUTH_CONTEXT
      environment variable.
    type: str

no_proxy:
    description:
    - The comma separated list of hosts/domains/IP/CIDR that shouldn't go through proxy.
      Can also be specified via K8S_AUTH_NO_PROXY environment variable.
    - Please note that this module does not pick up typical proxy settings from the environment
      (e.g. NO_PROXY).
    - This feature requires kubernetes>=19.15.0. When kubernetes library is less than
      19.15.0, it fails even no_proxy set in correct.
    - example value is "localhost,.local,.example.com,127.0.0.1,127.0.0.0/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16"
    type: str
    version_added: 2.3.0
    version_added_collection: kubernetes.core

password:
    description:
    - Provide a password for authenticating with the API. Can also be specified via K8S_AUTH_PASSWORD
      environment variable.
    - Please read the description of the C(username) option for a discussion of when this
      option is applicable.
    type: str

username:
    description:
    - 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 M(community.okd.k8s_auth)
      module, as that might do what you need.
    type: str

client_key:
    aliases:
    - key_file
    description:
    - Path to a key file used to authenticate with the API. Can also be specified via
      K8S_AUTH_KEY_FILE environment variable.
    type: path

kubeconfig:
    description:
    - Path to an existing Kubernetes config file. If not provided, and no other connection
      options are provided, the Kubernetes client will attempt to load the default configuration
      file from I(~/.kube/config). Can also be specified via K8S_AUTH_KUBECONFIG environment
      variable.
    - Multiple Kubernetes config file can be provided using separator ';' for Windows
      platform or ':' for others platforms.
    - The kubernetes configuration can be provided as dictionary. This feature requires
      a python kubernetes client version >= 17.17.0. Added in version 2.2.0.
    type: raw

client_cert:
    aliases:
    - cert_file
    description:
    - Path to a certificate used to authenticate with the API. Can also be specified via
      K8S_AUTH_CERT_FILE environment variable.
    type: path

proxy_headers:
    description:
    - The Header used for the HTTP proxy.
    - Documentation can be found here U(https://urllib3.readthedocs.io/en/latest/reference/urllib3.util.html?highlight=proxy_headers#urllib3.util.make_headers).
    suboptions:
      basic_auth:
        description:
        - Colon-separated username:password for basic authentication header.
        - Can also be specified via K8S_AUTH_PROXY_HEADERS_BASIC_AUTH environment.
        type: str
      proxy_basic_auth:
        description:
        - Colon-separated username:password for proxy basic authentication header.
        - Can also be specified via K8S_AUTH_PROXY_HEADERS_PROXY_BASIC_AUTH environment.
        type: str
      user_agent:
        description:
        - String representing the user-agent you want, such as foo/1.0.
        - Can also be specified via K8S_AUTH_PROXY_HEADERS_USER_AGENT environment.
        type: str
    type: dict
    version_added: 2.0.0
    version_added_collection: kubernetes.core

persist_config:
    description:
    - 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'
    type: bool

validate_certs:
    aliases:
    - verify_ssl
    description:
    - Whether or not to verify the API server's SSL certificates. Can also be specified
      via K8S_AUTH_VERIFY_SSL environment variable.
    type: bool

impersonate_user:
    description:
    - Username to impersonate for the operation.
    - Can also be specified via K8S_AUTH_IMPERSONATE_USER environment.
    type: str
    version_added: 2.3.0
    version_added_collection: kubernetes.core

invalidate_cache:
    default: true
    description:
    - Invalidate cache before retrieving information about cluster.
    type: bool

impersonate_groups:
    description:
    - Group(s) to impersonate for the operation.
    - 'Can also be specified via K8S_AUTH_IMPERSONATE_GROUPS environment. Example: Group1,Group2'
    elements: str
    type: list
    version_added: 2.3.0
    version_added_collection: kubernetes.core

Outputs

apis:
  contains:
    categories:
      description: API categories
      returned: success
      type: list
    name:
      description: Resource short name
      returned: success
      type: str
    namespaced:
      description: If resource is namespaced
      returned: success
      type: bool
    preferred:
      description: If resource version preferred
      returned: success
      type: bool
    short_names:
      description: Resource short names
      returned: success
      type: str
    singular_name:
      description: Resource singular name
      returned: success
      type: str
  description:
  - dictionary of group + version of resource found from cluster
  elements: dict
  returned: success
  type: dict
connection:
  contains:
    cert_file:
      description:
      - Path to client certificate.
      returned: success
      type: str
    host:
      description:
      - Host URL
      returned: success
      type: str
    password:
      description:
      - User password
      returned: success
      type: str
    proxy:
      description:
      - Proxy details
      returned: success
      type: str
    ssl_ca_cert:
      description:
      - Path to CA certificate
      returned: success
      type: str
    username:
      description:
      - Username
      returned: success
      type: str
    verify_ssl:
      description:
      - SSL verification status
      returned: success
      type: bool
  description:
  - Connection information
  returned: success
  type: dict
version:
  contains:
    client:
      description: Client version
      returned: success
      type: str
    server:
      description: Server version
      returned: success
      type: dict
  description:
  - Information about server and client version
  returned: success
  type: dict