# 1. On-Premise Pre-requisites

## Overview <a href="#hardware" id="hardware"></a>

Check the hardware and software prerequisites for deployment on-premise.

## Hardware Pre-requisites <a href="#hardware" id="hardware"></a>

<details>

<summary>Developement Env Setup</summary>

* One Bastion machine to run Kubespray
* HA-PROXY machine which acts as a load balancer with Public IP. (CPU: 2Core , Memory: 4GB)
* Three machines which act as master nodes. (CPU: 2Core , Memory: 4GB)
* Four machines which act as worker nodes. (CPU: 8Core , Memory: 16GB)
* One machine for database configuration. (CPU: 2Core , Memory: 8GB)
* volumes for persistence volume. (number of quantity: 13), Supported Storage Solutions Refer [here](https://kubernetes.io/docs/concepts/storage/storage-classes/), but the most popular and recommended is iSCSI.
* Kafka - 3 quantities each having a 50 GB size
* zookeeper - 3 quantities each having a 5 GB size
* es-data - 3 quantities each having a 50 GB size
* es-master - 3 quantities each having a 5 GB size
* filestore - 1 quantity with 50 GB size

</details>

<details>

<summary>Production Setup</summary>

* One Bastion machine to run Kubespray
* HA-PROXY machine which acts as a load balancer with Public IP. (CPU: 4 Core, Memory: 8GB)
* Three machines to serve as master nodes. (CPU: 2Core, Memory: 4GB)
* Six machines to serve as worker nodes. (CPU: 8Core, Memory: 16GB)
* One machine for database configuration. (CPU: 4Core, Memory: 16GB)
* volumes for persistence volume. (number of quantity: 22), Supported Storage Solutions Refer [here](https://kubernetes.io/docs/concepts/storage/storage-classes/), but the most popular and recommended is iSCSI.
* Kafka - 3 quantities (100 GB each)
* Kafka-infra - 3 quantities (100 GB each)
* zookeeper - 3 quantities (10 GB each)
* es-data - 3 quantities (100 GB each)
* es-data-infra - 3 quantities (100 GB each)
* es-master - 3 quantities (10 GB each)
* es-master-infra - 3 quantities (10 GB each)
* filestore - 1 quantity (100 GB)

</details>

## **Software Pre-requisites**

1. **Kubernetes nodes**
   1. Ubuntu 18.04
   2. SSH
   3. Privileged user
   4. Python
2. **Bastion machine**
   1. Ansible
   2. Git
   3. Python


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.digit.org/platform/guides/installation-guide/infrastructure-setup/sdc/1.-sdc-pre-requisites.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.