This page documents the requirements for the sizing of the host machine which will host the containers for the jtel Stack.

Operating System

Requirement Checklist	Comments
Operating System: Debian 12 Minimal Installation without GUI	Do not use newer versions of the operating system unless explicitely specified here.
SSH access	Required. For on premise installations this can be via a jump server.
root access	Provide the root user password to jtel for installation purposes. After installation this is no longer required (jtel will access the system using the jtel user).
jtel user	Create a jtel user first before proceeding to create other users. This will ensure that the GID and UID of the user are the first available (1000). The password will be required by jtel for the jtel user. Please note, we may change the password.
Give jtel user sudo rights	Make sure the jtel user has sudo rights.
No additional packages installed	Do not install any additional packages at this stage until the installation is completed.
Internet Access	The machine must be given internet access for the installation, and also for any subsequent updates or patches to the system. A list of the required sites which will be accessed can be found here: Required Internet Access (jtel Container Stack)

Up to 20 Concurrent Agents

Sizing	CPU Cores	RAM	Storage
Minimal (only recommended for systems with low load or testing purposes)	8	24 GB	500 GB
Optimal (recommended for normal operations)	12	32 GB	1 TB

Sizing	CPU Cores	RAM	Storage
Minimal (only recommended for systems with low load)	12	48 GB	1 TB
Optimal (recommended for normal operations)	16	64 GB	2 TB

Sizing	CPU Cores	RAM	Storage
Minimal (only recommended for systems with low load)	24	96 GB	3 TB
Optimal (recommended for normal operations)	32	128 GB	4 TB