.. _community.okd.k8s_module: ***************** community.okd.k8s ***************** **Manage OpenShift objects** .. contents:: :local: :depth: 1 Synopsis -------- - Use the Kubernetes Python client to perform CRUD operations on K8s objects. - Pass the object definition from a source file or inline. See examples for reading files and using Jinja templates or vault-encrypted files. - Access to the full range of K8s APIs. - Use the :ref:`kubernetes.core.k8s_info ` module to obtain a list of items about an object of type ``kind``. - Authenticate using either a config file, certificates, password or token. - Supports check mode. - Optimized for OKD/OpenShift Kubernetes flavors. Requirements ------------ The below requirements are needed on the host that executes this module. - python >= 3.6 - kubernetes >= 12.0.0 - PyYAML >= 3.11 Parameters ---------- .. raw:: html
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.
api_version
string
Default:
"v1"
Use to specify the API version.
Use to create, delete, or discover an object without providing a full resource definition.
Use in conjunction with kind, name, and namespace to identify a specific object.
If resource definition is provided, the apiVersion value from the resource_definition will override this option.

aliases: api, version
append_hash
boolean
    Choices:
  • no ←
  • yes
Whether to append a hash to a resource name for immutability purposes
Applies only to ConfigMap and Secret resources
The parameter will be silently ignored for other resource kinds
The full definition of an object is needed to generate the hash - this means that deleting an object created with append_hash will only work if the same object is passed with state=absent (alternatively, just use state=absent with the name including the generated hash and append_hash=no)
apply
boolean
    Choices:
  • no ←
  • yes
apply compares the desired resource definition with the previously supplied resource definition, ignoring properties that are automatically generated
apply works better with Services than 'force=yes'
mutually exclusive with merge_type
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.
continue_on_error
boolean
added in 2.0.0
    Choices:
  • no ←
  • yes
Whether to continue on creation/deletion errors when multiple resources are defined.
This has no effect on the validation step which is controlled by the validate.fail_on_error parameter.
delete_options
dictionary
added in 1.2.0
Configure behavior when deleting an object.
Only used when state=absent.
gracePeriodSeconds
integer
Specify how many seconds to wait before forcefully terminating.
Only implemented for Pod resources.
If not specified, the default grace period for the object type will be used.
preconditions
dictionary
Specify condition that must be met for delete to proceed.
resourceVersion
string
Specify the resource version of the target object.
uid
string
Specify the UID of the target object.
propagationPolicy
string
    Choices:
  • Foreground
  • Background
  • Orphan
Use to control how dependent objects are deleted.
If not specified, the default policy for the object type will be used. This may vary across object types.
force
boolean
    Choices:
  • no ←
  • yes
If set to yes, and state is present, an existing object will be replaced.
host
string
Provide a URL for accessing the API. Can also be specified via K8S_AUTH_HOST environment variable.
impersonate_groups
list / elements=string
added in 2.3.0
Group(s) to impersonate for the operation.
Can also be specified via K8S_AUTH_IMPERSONATE_GROUPS environment. Example: Group1,Group2
impersonate_user
string
added in 2.3.0
Username to impersonate for the operation.
Can also be specified via K8S_AUTH_IMPERSONATE_USER environment.
kind
string
Use to specify an object model.
Use to create, delete, or discover an object without providing a full resource definition.
Use in conjunction with api_version, name, and namespace to identify a specific object.
If resource definition is provided, the kind value from the resource_definition will override this option.
kubeconfig
raw
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 ~/.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.
merge_type
list / elements=string
    Choices:
  • json
  • merge
  • strategic-merge
Whether to override the default patch merge approach with a specific type. By default, the strategic merge will typically be used.
For example, Custom Resource Definitions typically aren't updatable by the usual strategic merge. You may want to use merge if you see "strategic merge patch format is not supported"
If more than one merge_type is given, the merge_types will be tried in order
Defaults to ['strategic-merge', 'merge'], which is ideal for using the same parameters on resource kinds that combine Custom Resources and built-in resources.
mutually exclusive with apply
merge_type=json is deprecated and will be removed in version 3.0.0. Please use kubernetes.core.k8s_json_patch instead.
name
string
Use to specify an object name.
Use to create, delete, or discover an object without providing a full resource definition.
Use in conjunction with api_version, kind and namespace to identify a specific object.
If resource definition is provided, the metadata.name value from the resource_definition will override this option.
namespace
string
Use to specify an object namespace.
Useful when creating, deleting, or discovering an object without providing a full resource definition.
Use in conjunction with api_version, kind, and name to identify a specific object.
If resource definition is provided, the metadata.namespace value from the resource_definition will override this option.
no_proxy
string
added in 2.3.0
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"
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).
proxy_headers
dictionary
added in 2.0.0
The Header used for the HTTP proxy.
basic_auth
string
Colon-separated username:password for basic authentication header.
Can also be specified via K8S_AUTH_PROXY_HEADERS_BASIC_AUTH environment.
proxy_basic_auth
string
Colon-separated username:password for proxy basic authentication header.
Can also be specified via K8S_AUTH_PROXY_HEADERS_PROXY_BASIC_AUTH environment.
user_agent
string
String representing the user-agent you want, such as foo/1.0.
Can also be specified via K8S_AUTH_PROXY_HEADERS_USER_AGENT environment.
resource_definition
-
Provide a valid YAML definition (either as a string, list, or dict) for an object when creating or updating.
NOTE: kind, api_version, name, and namespace will be overwritten by corresponding values found in the provided resource_definition.

aliases: definition, inline
src
path
Provide a path to a file containing a valid YAML definition of an object or objects to be created or updated. Mutually exclusive with resource_definition. NOTE: kind, api_version, name, and namespace will be overwritten by corresponding values found in the configuration read in from the src file.
Reads from the local file system. To read from the Ansible controller's file system, including vaulted files, use the file lookup plugin or template lookup plugin, combined with the from_yaml filter, and pass the result to resource_definition. See Examples below.
The URL to manifest files that can be used to create the resource. Added in version 2.4.0.
Mutually exclusive with template in case of kubernetes.core.k8s module.
state
string
    Choices:
  • absent
  • present ←
  • patched
Determines if an object should be created, patched, or deleted. When set to present, an object will be created, if it does not already exist. If set to absent, an existing object will be deleted. If set to present, an existing object will be patched, if its attributes differ from those specified using resource_definition or src.
patched state is an existing resource that has a given patch applied. If the resource doesn't exist, silently skip it (do not raise an error).
template
raw
added in 2.0.0
Provide a valid YAML template definition file for an object when creating or updating.
Value can be provided as string or dictionary.
Mutually exclusive with src and resource_definition.
Template files needs to be present on the Ansible Controller's file system.
Additional parameters can be specified using dictionary.
Valid additional parameters -
newline_sequence (str): Specify the newline sequence to use for templating files. valid choices are "\n", "\r", "\r\n". Default value "\n".
block_start_string (str): The string marking the beginning of a block. Default value "{%".
block_end_string (str): The string marking the end of a block. Default value "%}".
variable_start_string (str): The string marking the beginning of a print statement. Default value "{{".
variable_end_string (str): The string marking the end of a print statement. Default value "}}".
trim_blocks (bool): Determine when newlines should be removed from blocks. When set to yes the first newline after a block is removed (block, not variable tag!). Default value is true.
lstrip_blocks (bool): Determine when leading spaces and tabs should be stripped. When set to yes leading spaces and tabs are stripped from the start of a line to a block. This functionality requires Jinja 2.7 or newer. Default value is false.
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 community.okd.k8s_auth module, as that might do what you need.
validate
dictionary
how (if at all) to validate the resource definition against the kubernetes schema. Requires the kubernetes-validate python module
fail_on_error
boolean
    Choices:
  • no
  • yes
whether to fail on validation errors.
strict
boolean
    Choices:
  • no
  • yes ←
whether to fail when passing unexpected properties
version
string
version of Kubernetes to validate against. defaults to Kubernetes server version
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
wait
boolean
    Choices:
  • no ←
  • yes
Whether to wait for certain resource kinds to end up in the desired state.
By default the module exits once Kubernetes has received the request.
Implemented for state=present for Deployment, DaemonSet and Pod, and for state=absent for all resource kinds.
For resource kinds without an implementation, wait returns immediately unless wait_condition is set.
wait_condition
dictionary
Specifies a custom condition on the status to wait for.
Ignored if wait is not set or is set to False.
reason
string
The value of the reason field in your desired condition
For example, if a Deployment is paused, The Progressing type will have the DeploymentPaused reason.
The possible reasons in a condition are specific to each resource type in Kubernetes.
See the API documentation of the status field for a given resource to see possible choices.
status
string
    Choices:
  • True ←
  • False
  • Unknown
The value of the status field in your desired condition.
For example, if a Deployment is paused, the Progressing type will have the Unknown status.
type
string
The type of condition to wait for.
For example, the Pod resource will set the Ready condition (among others).
Required if you are specifying a wait_condition.
If left empty, the wait_condition field will be ignored.
The possible types for a condition are specific to each resource type in Kubernetes.
See the API documentation of the status field for a given resource to see possible choices.
wait_sleep
integer
Default:
5
Number of seconds to sleep between checks.
wait_timeout
integer
Default:
120
How long in seconds to wait for the resource to end up in the desired state.
Ignored if wait is not set.

Notes ----- .. note:: - 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 -------- .. code-block:: yaml - name: Create a k8s namespace community.okd.k8s: name: testing api_version: v1 kind: Namespace state: present - name: Create a Service object from an inline definition community.okd.k8s: state: present definition: apiVersion: v1 kind: Service metadata: name: web namespace: testing labels: app: galaxy service: web spec: selector: app: galaxy service: web ports: - protocol: TCP targetPort: 8000 name: port-8000-tcp port: 8000 - name: Remove an existing Service object community.okd.k8s: state: absent api_version: v1 kind: Service namespace: testing name: web # Passing the object definition from a file - name: Create a Deployment by reading the definition from a local file community.okd.k8s: state: present src: /testing/deployment.yml - name: >- Read definition file from the Ansible controller file system. If the definition file has been encrypted with Ansible Vault it will automatically be decrypted. community.okd.k8s: state: present definition: "{{ lookup('file', '/testing/deployment.yml') | from_yaml }}" - name: Read definition file from the Ansible controller file system after Jinja templating community.okd.k8s: state: present definition: "{{ lookup('template', '/testing/deployment.yml') | from_yaml }}" - name: fail on validation errors community.okd.k8s: state: present definition: "{{ lookup('template', '/testing/deployment.yml') | from_yaml }}" validate: fail_on_error: true - name: warn on validation errors, check for unexpected properties community.okd.k8s: state: present definition: "{{ lookup('template', '/testing/deployment.yml') | from_yaml }}" validate: fail_on_error: false strict: true Return Values ------------- Common return values are documented `here `_, the following are the fields unique to this module: .. raw:: html
Key Returned Description
result
complex
success
The created, patched, or otherwise present object. Will be empty in the case of a deletion.
 
api_version
string
success
The versioned schema of this representation of an object.
 
duration
integer
when wait is true
elapsed time of task in seconds

Sample:
48
 
error
complex
error
Error while trying to create/delete the object.
 
items
list
when resource_definition or src contains list of objects
Returned only when multiple yaml documents are passed to src or resource_definition
 
kind
string
success
Represents the REST resource this object represents.
 
metadata
complex
success
Standard object metadata. Includes name, namespace, annotations, labels, etc.
 
spec
complex
success
Specific attributes of the object. Will vary based on the api_version and kind.
 
status
complex
success
Current status details for the object.


Status ------ Authors ~~~~~~~ - Chris Houseknecht (@chouseknecht) - Fabian von Feilitzsch (@fabianvf)