# K8s Cluster Requirements

## Hardware requirements

### For sandbox setups

<table><thead><tr><th width="136">Purpose</th><th align="center">vCPUs</th><th align="center">RAM</th><th align="center">Storage (SSD)</th><th align="right">Number of Virtual Machines*</th><th>Preferred Operating System</th></tr></thead><tbody><tr><td>Cluster nodes</td><td align="center">8</td><td align="center">32 GB</td><td align="center">128 GB</td><td align="right">3</td><td>Ubuntu Server 20.04</td></tr><tr><td>Wireguard</td><td align="center">4</td><td align="center">16 GB</td><td align="center">64 GB</td><td align="right">1</td><td>Ubuntu Server 20.04</td></tr></tbody></table>

### For staging setups

<table><thead><tr><th width="136">Purpose</th><th align="center">vCPUs</th><th align="center">RAM</th><th align="center">Storage (SSD)</th><th align="right">Number of Virtual Machines*</th><th>Preferred Operating System</th></tr></thead><tbody><tr><td>Cluster nodes</td><td align="center">8</td><td align="center">32 GB</td><td align="center">128 GB</td><td align="right">3</td><td>Ubuntu Server 20.04</td></tr><tr><td>Wireguard</td><td align="center">4</td><td align="center">16 GB</td><td align="center">64 GB</td><td align="right">1</td><td>Ubuntu Server 20.04</td></tr><tr><td>Backup</td><td align="center">4</td><td align="center">16 GB</td><td align="center">512 GB</td><td align="right">1</td><td>Ubuntu Server 20.04</td></tr></tbody></table>

### For production setups

TBD

## Networking requirements

* All the machines in the same network.
* Public IP assigned to the Wireguard machine.

## DNS requirements

The following domain names and mappings will be required. Examples:

| Domain Name (examples)                                                                                                                    | Mapped to                                                                        |
| ----------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------- |
| <ul><li>openg2p.<em>\<your domain></em></li><li>uat.<em>\<your domain></em></li><li>pilot.openg2p.<em>\<your domain></em></li></ul>       | "A" Record mapped to Load Balancer IP **or** at least 3 nodes of the K8s Cluster |
| <ul><li><em>. openg2p.\<your domain></em></li><li>.uat.<em>\<your domain></em></li><li>\*.pilot.openg2p.<em>\<your domain></em></li></ul> | "CNAME" Record mapped to the above domain. (This is a wildcard DNS mapping)      |

## Certificate requirements

One wildcard certificate is required at least, depending on the above domain names used. This can also be generated using letsencrypt.


---

# 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.openg2p.org/1.1/guides/deployment-guide/deployment-on-kubernetes/k8s-cluster-requirements.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.