Difference between revisions of "Automating taking and deleting of Snapshots"

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'''The password is required the first time, and it can be either pasted or typed. It is then stored in the file.'''
'''The password is required the first time, and it can be either pasted or typed. It is then stored in the file.'''
* When the above command run successfully, it Confirms that the snapshot command ran without error and a snapshot was created for the VM.
* The snapshot is visible in the Proxmox web interface under the VM's "Snapshots" tab.
* We can create A second snapshot using the same command.
* The GUI now displays both the first and second snapshots for the VM.
* After taking a third snapshot, the oldest snapshot was automatically deleted as per the --keep=2 rule.
* Confirms the retention policy is working correctly: keeping only the two most recent snapshots.

Revision as of 09:58, 2 May 2025

Home > Proxmox > Automating taking and deleting of Snapshots

We can automate taking and deleting of Snapshots using cv4pve-autosnap tool.

cv4pve-autosnap is a lightweight automation tool designed for Proxmox VE environments to create and manage LVM-Thin and ZFS volume snapshots. It helps administrators implement automated, scheduled snapshot backups of virtual machines (VMs) and containers (CTs), offering a simple but effective mechanism for data protection and rollback.

Installation

Install the tool on Proxmox VE

# wget https://github.com/Corsinvest/cv4pve-autosnap/releases/download/v1.15.2/cv4pve-autosnap-linux-x64.zip

Install unzip package

# apt install unzip

unzip the package

# unzip cv4pve-autosnap-linux-x64.zip

give execute permission

# chmod +x cv4pve-autosnap

move it to sbin folder

# mv cv4pve-autosnap /usr/sbin/

To verify that the commands are working, we can run this command. It will display all available options.

# cv4pve-autosnap --help


VIRTUAL MACHINE

This command takes the backup of VM

# cv4pve-autosnap --host=172.30.7.100 --username=root@pam --password 'file:/root/password' --vmid=101 snap --label=daily --keep=2

Parameters used in the command

  • snap: will take snapshot one time
  • -- label: assigns a label or name to the snapshot (example: daily, monthly)
  • --keep: Specifies the number of snapshots to retain for the given label.
  • --vmid: id of the VM

The password is required the first time, and it can be either pasted or typed. It is then stored in the file.

  • When the above command run successfully, it Confirms that the snapshot command ran without error and a snapshot was created for the VM.
  • The snapshot is visible in the Proxmox web interface under the VM's "Snapshots" tab.
  • We can create A second snapshot using the same command.
  • The GUI now displays both the first and second snapshots for the VM.
  • After taking a third snapshot, the oldest snapshot was automatically deleted as per the --keep=2 rule.
  • Confirms the retention policy is working correctly: keeping only the two most recent snapshots.
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