A cloud virtual server differs from a regular VPS in the presence of an installed Virtualization Context daemon (service), which automates server configuration and allows you to add/remove IP addresses or increase disk size, as well as other parameters without rebooting.
By default, all virtual servers deployed in the Cloud VPS service context work with the Virtualization Context daemon installed and running.
If the server does not have this package, you can install it manually. For this:
Configuration should be done in the ONEVDC cloud server control panel https://onevdc.net
1. Choose the virtual machine in the VMs section

2. Stop the virtual machine

3. Go to the Storage tab and click the Attach disk button

4. Select the Contextualization Packages disk

5. Run a virtual machine

Then look at how the virtual CDROM was connected, in this case, it is the /dev/sr1 block device.
6. Mount the CD drive to a folder, for example /mnt
The CD contains packages for installing the Virtualization Context daemon for all popular operating systems.
- Installation for Debian/Ubuntu OS
- Installation for CentOS 7
- Installation for CentOS 8 / CentOS 8 Stream / AlmaLinux / Rocky Linux
- Installation for Alpine Linux
- To install the package under Windows OS, use the msi-package
one-context-6.2.0.msi