Coriolis User Scripts

User Scripts allow users to hook into Coriolis’ OS Morphing process and execute any needed last-minute customizations for the instance(s) being Migrated before being booted up on the destination cloud platform.

The feature is available in the following scenarios:

  • Creating a Replica Deployment from a current Replica

  • Creating a Migration

    • User Scrips will be one of the steps prior to starting a Migration task

    • The step is available after target configurations

In both cases, you can choose to have one generic, global script per operating system type (Linux, Windows, etc.) or a custom script for a specific instance.

Supported User Scripts file formats:

  • for Linux VMs, any scripting language available on a standard Linux (bash, python, etc.)

  • for Windows VMs, PowerShell and batch scripts are supported.

User Scripts can be leveraged in the following sample scenarios:

  • Install/Remove packages on the instance, that take place on the destination platform (not on the source VM) prior to the Migration process

  • Make additional configuration changes

  • Download files on the instance

  • Install 3rd party drivers

User scripts will run with elevated privileges, so they will have the same access rights as Coriolis itself.

Example of a PowerShell User Script for a Windows VM, this lists all 3rd party drivers from the migrated OS disk of the instance:

$OS=$args[0]
dism.exe /Image:$OS /Get-Drivers

This is a Linux User Script snippet that will download a file to the /var folder on the migrated instance disk:

#!/bin/bash
#$1 represents the root disk path
root_disk="$1"
wget https://url -O "$root_disk/var"