kubevirt_pvc – Manage PVCs on Kubernetes

New in version 2.8.

Synopsis

  • Use Openshift Python SDK to manage PVCs on Kubernetes
  • Support Containerized Data Importer out of the box

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
access_modes
list
Contains the desired access modes the volume should have.
annotations
dictionary
Annotations attached to this object.
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
cdi_source
dictionary
If data is to be copied onto the PVC using the Containerized Data Importer you can specify the source of the data (along with any additional configuration) as well as it's format.
Valid source types are: blank, http, s3, registry, pvc and upload. The last one requires using the kubevirt_cdi_upload module to actually perform an upload.
Source data format is specified using the optional content_type. Valid options are kubevirt (default; raw image) and archive (tar.gz).
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.
force
boolean
    Choices:
  • no ←
  • yes
If set to True, 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.
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.
labels
dictionary
Labels attached to this object.
merge_type
list
    Choices:
  • json
  • merge
  • strategic-merge
Whether to override the default patch merge approach with a specific type.
This defaults to ['strategic-merge', 'merge'], which is ideal for using the same parameters on resource kinds that combine Custom Resources and built-in resources.
If more than one merge_type is given, the merge_types will be tried in order
name
string / required
Use to specify a PVC object name.
namespace
string / required
Use to specify a PVC object namespace.
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.
resource_definition
dictionary
A partial YAML definition of the PVC object being created/updated. Here you can define Kubernetes PVC Resource parameters not covered by this module's parameters.
NOTE: resource_definition has lower priority than module parameters. If you try to define e.g. metadata.namespace here, that value will be ignored and namespace used instead.

aliases: definition, inline
selector
dictionary
A label query over volumes to consider for binding.
size
string
How much storage to allocate to the PVC.

aliases: storage
state
-
    Choices:
  • present ←
  • absent
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 module options and resource_definition.
storage_class_name
string
Name of the StorageClass required by the claim.
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
volume_mode
string
This defines what type of volume is required by the claim. Value of Filesystem is implied when not included in claim spec. This is an alpha feature of kubernetes and may change in the future.
volume_name
string
This is the binding reference to the PersistentVolume backing this claim.
wait
boolean
    Choices:
  • no ←
  • yes
If set, this module will wait for the PVC to become bound and CDI (if enabled) to finish its operation before returning.
Used only if state set to present.
Unless used in conjunction with cdi_source, this might result in a timeout, as clusters may be configured to not bind PVCs until first usage.
wait_timeout
integer
Default:
300
Specifies how much time in seconds to wait for PVC creation to complete if wait option is enabled.
Default value is reasonably high due to an expectation that CDI might take a while to finish its operation.

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 a PVC and import data from an external source
  kubevirt_pvc:
    name: pvc1
    namespace: default
    size: 100Mi
    access_modes:
      - ReadWriteOnce
    cdi_source:
      http:
        url: https://www.source.example/path/of/data/vm.img
      # If the URL points to a tar.gz containing the disk image, uncomment the line below:
      #content_type: archive

- name: Create a PVC as a clone from a different PVC
  kubevirt_pvc:
    name: pvc2
    namespace: default
    size: 100Mi
    access_modes:
      - ReadWriteOnce
    cdi_source:
      pvc:
        namespace: source-ns
        name: source-pvc

- name: Create a PVC ready for data upload
  kubevirt_pvc:
    name: pvc3
    namespace: default
    size: 100Mi
    access_modes:
      - ReadWriteOnce
    cdi_source:
      upload: yes
    # You need the kubevirt_cdi_upload module to actually upload something

- name: Create a PVC with a blank raw image
  kubevirt_pvc:
    name: pvc4
    namespace: default
    size: 100Mi
    access_modes:
      - ReadWriteOnce
    cdi_source:
      blank: yes

- name: Create a PVC and fill it with data from a container
  kubevirt_pvc:
    name: pvc5
    namespace: default
    size: 100Mi
    access_modes:
      - ReadWriteOnce
    cdi_source:
      registry:
        url: "docker://kubevirt/fedora-cloud-registry-disk-demo"

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.

  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
  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

  • KubeVirt Team (@kubevirt)

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