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# 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 | Choices: no yes | A boolean flag that indicates if the server TLS certificate and host name should be checked.
| kerberos boolean | Choices: 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 | Choices: 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 - | Choices: 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 | Choices: 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 | Choices: 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)

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