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k8s - Manage Kubernetes (K8s) objects
New in version 2.6.
Synopsis
- Use the OpenShift 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.
- Access to the full range of K8s APIs.
- Authenticate using either a config file, certificates, password or token.
- Supports check mode.
Aliases: k8s_raw,openshift_raw
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 |
Token used to authenticate with the API. Can also be specified via K8S_AUTH_API_KEY environment variable.
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api_version | Default:
"v1"
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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 from the resource_definition will override this option.
aliases: api, version |
cert_file |
Path to a certificate used to authenticate with the API. Can also be specified via K8S_AUTH_CERT_FILE environment variable.
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context |
The name of a context found in the config file. Can also be specified via K8S_AUTH_CONTEXT environment variable.
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force
bool
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|
If set to True , and state is present , an existing object will be replaced.
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host |
Provide a URL for accessing the API. Can also be specified via K8S_AUTH_HOST environment variable.
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key_file |
Path to a key file used to authenticate with the API. Can also be specified via K8S_AUTH_HOST environment variable.
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kind |
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 from the resource_definition will override this option.
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kubeconfig |
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.
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name |
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.
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namespace |
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 specfic object. If resource definition is provided, the metadata.namespace value from the resource_definition will override this option.
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password |
Provide a password for authenticating with the API. Can also be specified via K8S_AUTH_PASSWORD environment variable.
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resource_definition |
Provide a valid YAML definition 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 |
Provide a path to a file containing a valid YAML definition of an object 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, 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.
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ssl_ca_cert |
Path to a CA certificate used to authenticate with the API. Can also be specified via K8S_AUTH_SSL_CA_CERT environment variable.
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state |
|
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.
|
username |
Provide a username for authenticating with the API. Can also be specified via K8S_AUTH_USERNAME environment variable.
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verify_ssl
bool
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Whether or not to verify the API server's SSL certificates. Can also be specified via K8S_AUTH_VERIFY_SSL environment variable.
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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
Examples
- name: Create a k8s namespace
k8s:
name: testing
api_version: v1
kind: Namespace
state: present
- name: Create a Service object from an inline definition
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: Create a Service object by reading the definition from a file
k8s:
state: present
src: /testing/service.yml
- name: Get an existing Service object
k8s:
api_version: v1
kind: Service
name: web
namespace: testing
register: web_service
- name: Get a list of all service objects
k8s:
api_version: v1
kind: ServiceList
namespace: testing
register: service_list
- name: Remove an existing Service object
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
k8s:
state: present
src: /testing/deployment.yml
- name: Read definition file from the Ansible controller file system
k8s:
state: present
definition: "{{ lookup('file', '/testing/deployment.yml') | from_yaml }}"
- name: Read definition file from the Ansible controller file system after Jinja templating
k8s:
state: present
definition: "{{ lookup('template', '/testing/deployment.yml') | from_yaml }}"
Return Values
Common return values are documented here, the following are the fields unique to this module:
Key | Returned | Description | |
---|---|---|---|
result
complex
|
success |
The created, patched, or otherwise present object. Will be empty in the case of a deletion.
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api_version
str
|
success |
The versioned schema of this representation of an object.
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kind
str
|
success |
Represents the REST resource this object represents.
|
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metadata
complex
|
success |
Standard object metadata. Includes name, namespace, annotations, labels, etc.
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spec
complex
|
success |
Specific attributes of the object. Will vary based on the api_version and kind.
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status
complex
|
success |
Current status details for the object.
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items
list
|
when resource is a List |
Returned only when the kind is a List type resource. Contains a set of objects.
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Status
This module is flagged as preview which means that it is not guaranteed to have a backwards compatible interface.
Maintenance
This module is flagged as community which means that it is maintained by the Ansible Community. See Module Maintenance & Support for more info.
For a list of other modules that are also maintained by the Ansible Community, see here.
Author
- Chris Houseknecht (@chouseknecht)
- Fabian von Feilitzsch (@fabianvf)
Hint
If you notice any issues in this documentation you can edit this document to improve it.
© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.6/modules/k8s_module.html