kubevirt_template – Manage KubeVirt templates

New in version 2.8.

Synopsis

  • Use Openshift Python SDK to manage the state of KubeVirt templates.

Requirements

The below requirements are needed on the host that executes this module.

  • python >= 2.7
  • openshift >= 0.8.2

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.
default_disk
dictionary
The goal of default disk is to define what kind of disk is supported by the OS mainly in terms of bus (ide, scsi, sata, virtio, ...)
The default_disk parameter define configuration overlay for disks that will be applied on top of disks during virtual machine creation to define global compatibility and/or performance defaults defined here.
This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
default_network
dictionary
The goal of default network is similar to default_volume and should be used as a template that specifies performance and connection parameters (L2 bridge for example)
The default_network parameter define configuration overlay for networks that will be applied on top of networks during virtual machine creation to define global compatibility and/or performance defaults defined here.
This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
default_nic
dictionary
The goal of default network is similar to default_disk and should be used as a template to ensure OS compatibility and performance.
The default_nic parameter define configuration overlay for nic that will be applied on top of nics during virtual machine creation to define global compatibility and/or performance defaults defined here.
This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
default_volume
dictionary
The goal of default volume is to be able to configure mostly performance parameters like caches if those are exposed by the underlying volume implementation.
The default_volume parameter define configuration overlay for volumes that will be applied on top of volumes during virtual machine creation to define global compatibility and/or performance defaults defined here.
This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
description
string
A description of the template.
Include enough detail that the user will understand what is being deployed... and any caveats they need to know before deploying. It should also provide links to additional information, such as a README file."
display_name
string
A brief, user-friendly name, which can be employed by user interfaces.
documentation_url
string
A URL referencing further documentation for the template.
editable
list
Extension for hinting at which elements should be considered editable. List of jsonpath selectors. The jsonpath root is the objects: element of the template.
This is parameter can be used only when kubevirt addon is installed on your openshift cluster.
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.
icon_class
string
An icon to be displayed with your template in the web console. Choose from our existing logo icons when possible. You can also use icons from FontAwesome. Alternatively, provide icons through CSS customizations that can be added to an OpenShift Container Platform cluster that uses your template. You must specify an icon class that exists, or it will prevent falling back to the generic icon.
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.
long_description
string
Additional template description. This may be displayed by the service catalog, for example.
merge_type
list
    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.
name
string / required
Name of the Template object.
namespace
string / required
Namespace where the Template object exists.
objects
list
List of any valid API objects, such as a DeploymentConfig, Service, etc. The object will be created exactly as defined here, with any parameter values substituted in prior to creation. The definition of these objects can reference parameters defined earlier.
As part of the the list user can pass also VirtualMachine kind. When passing VirtualMachine user must use Ansible structure of the parameters not the Kubernetes API structure. For more information please take a look at kubevirt_vm module and at EXAMPLES section, where you can see example.
parameters
list
Parameters allow a value to be supplied by the user or generated when the template is instantiated. Then, that value is substituted wherever the parameter is referenced. References can be defined in any field in the objects list field. This is useful for generating random passwords or allowing the user to supply a host name or other user-specific value that is required to customize the template.
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.
provider_display_name
string
The name of the person or organization providing the template.
proxy
-
added in 2.9
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).
state
string
    Choices:
  • absent
  • present ←
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.
support_url
string
A URL where support can be obtained for the template.
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
version
string
Template structure version.
This is parameter can be used only when kubevirt addon is installed on your openshift cluster.

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: Create template 'mytemplate'
  kubevirt_template:
    state: present
    name: myvmtemplate
    namespace: templates
    display_name: Generic cirros template
    description: Basic cirros template
    long_description: Verbose description of cirros template
    provider_display_name: Just Be Cool, Inc.
    documentation_url: http://theverycoolcompany.com
    support_url: http://support.theverycoolcompany.com
    icon_class: icon-linux
    default_disk:
      disk:
        bus: virtio
    default_nic:
      model: virtio
    default_network:
      resource:
        resourceName: bridge.network.kubevirt.io/cnvmgmt
    default_volume:
      containerDisk:
        image: kubevirt/cirros-container-disk-demo:latest
    objects:
      - name: ${NAME}
        kind: VirtualMachine
        memory: ${MEMORY_SIZE}
        state: present
        namespace: vms
    parameters:
      - name: NAME
        description: VM name
        generate: expression
        from: 'vm-[A-Za-z0-9]{8}'
      - name: MEMORY_SIZE
        description: Memory size
        value: 1Gi

- name: Remove template 'myvmtemplate'
  kubevirt_template:
    state: absent
    name: myvmtemplate
    namespace: templates

Return Values

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

Key Returned Description
kubevirt_template
complex
success
The template dictionary specification returned by the API.


Status

Authors

  • KubeVirt Team (@kubevirt)

Hint

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