community.kubernetes.k8s_rollback – Rollback Kubernetes (K8S) Deployments and DaemonSets

Note

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

You might already have this collection installed if you are using the ansible package. It is not included in ansible-core. To check whether it is installed, run ansible-galaxy collection list.

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

To use it in a playbook, specify: community.kubernetes.k8s_rollback.

New in version 1.0.0: of community.kubernetes

Synopsis
Requirements
Parameters
Notes
Examples
Return Values

Synopsis

Use the OpenShift Python client to perform the Rollback.
Authenticate using either a config file, certificates, password or token.
Similar to the kubectl rollout undo command.

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.
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
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.
field_selectors list / elements=string		List of field selectors to use to filter results.
host string		Provide a URL for accessing the API. Can also be specified via K8S_AUTH_HOST environment variable.
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 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.
label_selectors list / elements=string		List of label selectors to use to filter results.
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.
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: Rollback a failed deployment
  community.kubernetes.k8s_rollback:
    api_version: apps/v1
    kind: Deployment
    name: web
    namespace: testing

Return Values

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

Key		Returned	Description
rollback_info complex		success	The object that was rolled back.
	api_version string	success	The versioned schema of this representation of an object.
	code string	success	The HTTP Code of the response
	kind string	success	Status
	metadata dictionary	success	Standard object metadata. Includes name, namespace, annotations, labels, etc.
	status dictionary	success	Current status details for the object.

Authors

Julien Huon (@julienhuon)

© 2012–2018 Michael DeHaan
© 2018–2021 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/latest/collections/community/kubernetes/k8s_rollback_module.html