Documentation

ovirt_affinity_group - Module to manage affinity groups in oVirt/RHV

New in version 2.3.

Synopsis

  • This module manage affinity groups in oVirt/RHV. It can also manage assignments of those groups to VMs.

Aliases: ovirt_affinity_groups

Requirements

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

  • python >= 2.7
  • ovirt-engine-sdk-python >= 4.2.4

Parameters

Parameter Choices/Defaults Comments
auth
required
Dictionary with values needed to create HTTP/HTTPS connection to oVirt:
username[required] - The name of the user, something like [email protected]. Default value is set by OVIRT_USERNAME environment variable.
password[required] - The password of the user. Default value is set by OVIRT_PASSWORD environment variable.
url - A string containing the API URL of the server, usually something like `https://server.example.com/ovirt-engine/api`. Default value is set by OVIRT_URL environment variable. Either url or hostname is required.
hostname - A string containing the hostname of the server, usually something like `server.example.com`. Default value is set by OVIRT_HOSTNAME environment variable. Either url or hostname is required.
token - Token to be used instead of login with username/password. Default value is set by OVIRT_TOKEN environment variable.
insecure - A boolean flag that indicates if the server TLS certificate and host name should be checked.
ca_file - A PEM file containing the trusted CA certificates. The certificate presented by the server will be verified using these CA certificates. If `ca_file` parameter is not set, system wide CA certificate store is used. Default value is set by OVIRT_CAFILE environment variable.
kerberos - A boolean flag indicating if Kerberos authentication should be used instead of the default basic authentication.
headers - Dictionary of HTTP headers to be added to each API call.
cluster
Name of the cluster of the affinity group.
description
Description of the affinity group.
fetch_nested
(added in 2.3)
If True the module will fetch additional data from the API.
It will fetch IDs of the VMs disks, snapshots, etc. User can configure to fetch other attributes of the nested entities by specifying nested_attributes.
host_enforcing
bool
    Choices:
  • no
  • yes
If yes VM cannot start on host if it does not satisfy the host_rule.
This parameter is support since oVirt/RHV 4.1 version.
host_rule
    Choices:
  • negative
  • positive
If positive all VMs in this group should run on the this host.
If negative no VMs in this group should run on the this host.
This parameter is support since oVirt/RHV 4.1 version.
hosts
List of the hosts names, which should have assigned this affinity group.
This parameter is support since oVirt/RHV 4.1 version.
name
required
Name of the affinity group to manage.
nested_attributes
(added in 2.3)
Specifies list of the attributes which should be fetched from the API.
This parameter apply only when fetch_nested is true.
poll_interval Default:
3
Number of the seconds the module waits until another poll request on entity status is sent.
state
    Choices:
  • absent
  • present ←
Should the affinity group be present or absent.
timeout Default:
180
The amount of time in seconds the module should wait for the instance to get into desired state.
vm_enforcing
bool
    Choices:
  • no
  • yes
If yes VM cannot start if it does not satisfy the vm_rule.
vm_rule
    Choices:
  • disabled
  • negative
  • positive
If positive all VMs in this group should run on the host defined by host_rule.
If negative no VMs in this group should run on the host defined by host_rule.
If disabled this affinity group doesn't take effect.
vms
List of the VMs names, which should have assigned this affinity group.
wait
True if the module should wait for the entity to get into desired state.

Notes

Note

  • In order to use this module you have to install oVirt Python SDK. To ensure it’s installed with correct version you can create the following task: pip: name=ovirt-engine-sdk-python version=4.2.4

Examples

# Examples don't contain auth parameter for simplicity,
# look at ovirt_auth module to see how to reuse authentication:

- name: Create(if not exists) and assign affinity group to VMs vm1 and vm2 and host host1
  ovirt_affinity_group:
    name: mygroup
    cluster: mycluster
    vm_enforcing: true
    vm_rule: positive
    host_enforcing: true
    host_rule: positive
    vms:
      - vm1
      - vm2
    hosts:
      - host1

- name: Detach VMs from affinity group and disable VM rule
  ovirt_affinity_group:
    name: mygroup
    cluster: mycluster
    vm_enforcing: false
    vm_rule: disabled
    host_enforcing: true
    host_rule: positive
    vms: []
    hosts:
      - host1
      - host2

- name: Remove affinity group
  ovirt_affinity_group:
    state: absent
    cluster: mycluster
    name: mygroup

Return Values

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

Key Returned Description
affinity_group
str
On success if affinity group is found.
Dictionary of all the affinity group attributes. Affinity group attributes can be found on your oVirt/RHV instance at following url: http://ovirt.github.io/ovirt-engine-api-model/master/#types/affinity_group.

id
str
On success if affinity group is found.
ID of the affinity group which is managed

Sample:
7de90f31-222c-436c-a1ca-7e655bd5b60c


Status

This module is flagged as preview which means that it is not guaranteed to have a backwards compatible interface.

Author

  • Ondra Machacek (@machacekondra)

Hint

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