A simple powershell script that backs up ESXi hosts.

I'm currently running this in production on Windows server, though it ran in PowerShell for MacOS with the PowerCLI installed through the Install-Module cmdlet. Realistically this should work on any OS that can run PowerShell and the PowerCLI. Feel free to test on Linux if you wish, and let me know how it works out.

1: Get the code

git clone https://github.com/MelonSmasher/EsxiBackup.git;
cd EsxiBackup;
cp config.example.json config.json;

2: Open config.json with a text editor and configure the script

• backup_repo - Leave backup_repo set to false to use the local folder in this repo called Backup. You can also change this to a UNC network path or explicit folder path.
• hosts - Configure this JSON array with JSON objects with each hosts DNS or ip address, username, and password.
  • address - The host DNS name or IP address.
  • user - A user on the host. Usually root.
  • pass - The user password. Usually the root password.

3: Install the VMware PowerCLI

Set-PSRepository -Name PSGallery -InstallationPolicy Trusted;
Install-Module -Name VMware.PowerCLI;
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore;

4: Either Enable or disable VMWare CEIP, this prevents a prompt each time the script is run

Enable:

Set-PowerCLIConfiguration -Scope AllUsers -ParticipateInCEIP $true;

Disable:

Set-PowerCLIConfiguration -Scope AllUsers -ParticipateInCEIP $false;

From PowerShell:

./EsxiBackup.ps1;

From the GUI:

Double click on run_backup.bat.

Connect-VIServer esxi-host-1.domain.tld -user root -password <password>;
Set-VMHost -VMHost esxi-host-1.domain.tld -State Maintenance;
Set-VMHostFirmware -vmhost esxi-host-1.domain.tld -Restore -Force -SourcePath C:\EsxiBackup\configBundle-esxi-host-1.domain.tld.tgz -HostUser root -HostPassword <password>;

You can import my scheduled task to Windows Task Scheduler by importing ESXi Backup Windows Task.xml into Windows Task Scheduler. Make sure you've enabled or disabled the CEIP for all users before doing this.