ovirt.ovirt.ovirt_affinity_group module – Module to manage affinity groups in oVirt/RHV

Note

This module is part of the ovirt.ovirt collection (version 3.2.0).

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 ovirt.ovirt. You need further requirements to be able to use this module, see Requirements for details.

To use it in a playbook, specify: ovirt.ovirt.ovirt_affinity_group.

New in ovirt.ovirt 1.0.0

Synopsis

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

Requirements

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

  • python >= 2.7

  • ovirt-engine-sdk-python >= 4.4.0

Parameters

Parameter

Comments

auth

dictionary / required

Dictionary with values needed to create HTTP/HTTPS connection to oVirt:

ca_file

string

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.

compress

boolean

Flag indicating if compression is used for connection.

Choices:

  • false

  • true ← (default)

headers

dictionary

Dictionary of HTTP headers to be added to each API call.

hostname

string

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.

insecure

boolean

A boolean flag that indicates if the server TLS certificate and host name should be checked.

Choices:

  • false ← (default)

  • true

kerberos

boolean

A boolean flag indicating if Kerberos authentication should be used instead of the default basic authentication.

Choices:

  • false

  • true

password

string

The password of the user.

Default value is set by OVIRT_PASSWORD environment variable.

timeout

integer

Number of seconds to wait for response.

token

string

Token to be used instead of login with username/password.

Default value is set by OVIRT_TOKEN environment variable.

url

string

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.

username

string

The name of the user, something like admin@internal.

Default value is set by OVIRT_USERNAME environment variable.

cluster

string / required

Name of the cluster of the affinity group.

description

string

Description of the affinity group.

fetch_nested

boolean

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.

Choices:

  • false ← (default)

  • true

host_enforcing

boolean

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.

Choices:

  • false

  • true

host_rule

string

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.

If disabled this affinity group doesn’t take effect.

This parameter is support since oVirt/RHV 4.1 version.

Choices:

  • "disabled"

  • "negative"

  • "positive"

hosts

list / elements=string

List of the hosts names, which should have assigned this affinity group.

This parameter is support since oVirt/RHV 4.1 version.

hosts_labels

list / elements=string

List of the hosts lable names, which should have assigned this affinity group.

name

string / required

Name of the affinity group to manage.

nested_attributes

list / elements=string

Specifies list of the attributes which should be fetched from the API.

This parameter apply only when fetch_nested is true.

poll_interval

integer

Number of the seconds the module waits until another poll request on entity status is sent.

Default: 3

state

string

Should the affinity group be present or absent.

Choices:

  • "absent"

  • "present" ← (default)

timeout

integer

The amount of time in seconds the module should wait for the instance to get into desired state.

Default: 180

vm_enforcing

boolean

If yes VM cannot start if it does not satisfy the vm_rule.

Choices:

  • false

  • true

vm_rule

string

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.

Choices:

  • "disabled"

  • "negative"

  • "positive"

vms

list / elements=string

List of the VMs names, which should have assigned this affinity group.

vms_labels

list / elements=string

List of the hosts lable names, which should have assigned this affinity group.

wait

boolean

yes if the module should wait for the entity to get into desired state.

Choices:

  • false

  • true ← (default)

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=4.4.0

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.ovirt.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.ovirt.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.ovirt.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

Description

affinity_group

string

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.

Returned: On success if affinity group is found.

id

string

ID of the affinity group which is managed

Returned: On success if affinity group is found.

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

Authors

  • Ondra Machacek (@machacekondra)

  • Martin Necas (@mnecas)