ovirt_snapshot – Module to manage Virtual Machine Snapshots in oVirt/RHV

ovirt_snapshot – Module to manage Virtual Machine Snapshots in oVirt/RHV

• Synopsis
• Requirements
• Parameters
• Notes
• Examples
• Return Values
• Status

Synopsis

• Module to manage Virtual Machine Snapshots in oVirt/RHV

Requirements

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

• python >= 2.7
• ovirt-engine-sdk-python >= 4.3.0

Parameters

Parameter		Choices/Defaults	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.
	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	no yes	A boolean flag that indicates if the server TLS certificate and host name should be checked.
	kerberos boolean	no yes	A boolean flag indicating if Kerberos authentication should be used instead of the default basic authentication.
	password string / required		The password of the user. Default value is set by OVIRT_PASSWORD environment variable.
	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 / required		The name of the user, something like admin@internal. Default value is set by OVIRT_USERNAME environment variable.
description -			Description of the snapshot.
disk_id - added in 2.8			Disk id which you want to upload or download To get disk, you need to define disk_id or disk_name
disk_name - added in 2.8			Disk name which you want to upload or download
download_image_path - added in 2.8			Path on a file system where snapshot should be downloaded. Note that you must have an valid oVirt/RHV engine CA in your system trust store or you must provide it in ca_file parameter. Note that the snapshot is not downloaded when the file already exists, but you can forcibly download the snapshot when using force I (true).
fetch_nested boolean		no yes	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.
keep_days_old - added in 2.8			Number of days after which should snapshot be deleted. It will check all snapshots of virtual machine and delete them, if they are older.
nested_attributes list			Specifies list of the attributes which should be fetched from the API. This parameter apply only when fetch_nested is true.
poll_interval integer		Default: 3	Number of the seconds the module waits until another poll request on entity status is sent.
snapshot_id -			ID of the snapshot to manage.
state -		restore present ← absent	Should the Virtual Machine snapshot be restore/present/absent.
timeout integer		Default: 180	The amount of time in seconds the module should wait for the instance to get into desired state.
upload_image_path - added in 2.8			Path to disk image, which should be uploaded.
use_memory boolean		no yes	If true and state is present save memory of the Virtual Machine if it's running. If true and state is restore restore memory of the Virtual Machine. Note that Virtual Machine will be paused while saving the memory. aliases: restore_memory, save_memory
vm_name - / required			Name of the Virtual Machine to manage.
wait boolean		no yes ←	yes if the module should wait for the entity to get into desired state.

Notes

Note

• Note that without a guest agent the data on the created snapshot may be inconsistent.
• Deleting a snapshot does not remove any information from the virtual machine - it simply removes a return-point. However, restoring a virtual machine from a snapshot deletes any content that was written to the virtual machine after the time the snapshot was taken.
• 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=4.3.0

Examples

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

# Create snapshot:
- ovirt_snapshot:
    vm_name: rhel7
    description: MySnapshot
  register: snapshot

# Create snapshot and save memory:
- ovirt_snapshot:
    vm_name: rhel7
    description: SnapWithMem
    use_memory: true
  register: snapshot

# Restore snapshot:
- ovirt_snapshot:
    state: restore
    vm_name: rhel7
    snapshot_id: "{{ snapshot.id }}"

# Remove snapshot:
- ovirt_snapshot:
    state: absent
    vm_name: rhel7
    snapshot_id: "{{ snapshot.id }}"

# Upload local image to disk and attach it to vm:
# Since Ansible 2.8
- ovirt_snapshot:
    name: mydisk
    vm_name: myvm
    upload_image_path: /path/to/mydisk.qcow2

# Download snapshot to local file system:
# Since Ansible 2.8
- ovirt_snapshot:
    snapshot_id: 7de90f31-222c-436c-a1ca-7e655bd5b60c
    disk_name: DiskName
    vm_name: myvm
    download_image_path: /home/user/mysnaphost.qcow2

# Delete all snapshots older than 2 days
- ovirt_snapshot:
    vm_name: test
    keep_days_old: 2

Return Values

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

Key	Returned	Description
id string	On success if snapshot is found.	ID of the snapshot which is managed Sample: 7de90f31-222c-436c-a1ca-7e655bd5b60c
snapshot dictionary	On success if snapshot is found.	Dictionary of all the snapshot attributes. Snapshot attributes can be found on your oVirt/RHV instance at following url: http://ovirt.github.io/ovirt-engine-api-model/master/#types/snapshot.
snapshots list	On success returns deleted snapshots	List of deleted snapshots when keep_days_old is defined and snapshot is older than the input days

Status

• This module is not guaranteed to have a backwards compatible interface. [preview]
• This module is maintained by the Ansible Community. [community]

Authors

• Ondra Machacek (@machacekondra)

Hint

If you notice any issues in this documentation, you can edit this document to improve it.

© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.9/modules/ovirt_snapshot_module.html