Hardware Requirements

Introduction

The hardware requirements pertain to the kubernetes based infrastructure required to house OpenG2P modules. The number of VMs and configuration are subjected to scaled down if only specific modules are being installed.

For sandbox

Purpose	vCPUs	RAM	Storage (SSD)	# of VMs	OS
Cluster nodes	8	32 GB	128 GB		Ubuntu Server 20.04
Wireguard	4	16 GB	64 GB	1	Ubuntu Server 20.04

For pilot

Purpose	vCPUs	RAM	Storage (SSD)	# of VMs	OS
Cluster nodes	8	32 GB	128 GB	3	Ubuntu Server 20.04
Wireguard*	4	16 GB	64 GB	1	Ubuntu Server 20.04
Rancher*	8	32 GB	128 GB	1	Ubuntu Server 20.04
Nginx LB*	4	16 GB	64 GB	1	Ubuntu Server 20.04
NFS for Storage	4	16 GB	1 TB*	1	Ubuntu Server 20.04

* Wireguard: One VM for Wireguard is sufficient for all the environments/setups in your network. This is used to facilitate VPN access to the pilot environments.

* Rancher: One VM for Rancher is sufficient to manage all the K8s environments/setups. This is used to facilitate K8s Access Control & Management of the pilot environments.

* Nginx Loadbalancer: Nginx VMs for load balancing. These VMs are not required if using a Cloud Provider. Instead, it is recommended to use Cloud-native Load balancers.

* NFS Storage Size: This will facilitate persistent storage for components in the K8s Cluster. The actual size of storage required will vary from setup to setup. Can be computed using the Storage requirements.

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:

Requirement Description	Domain Name (examples)	Mapped to
Top level domain that points to the sandbox.	openg2p.<your domain> uat.<your domain> pilot.openg2p.<your domain>	"A" Record mapped to Load Balancer IP (For sandox, where loadbalancer is not present, this can be mapped directly nodes of the K8s Cluster, at least 3 nodes).
Wildcard subdomain for accessing individual components within OpenG2P sandbox.	*.openg2p.<your domain> *.uat.<your domain> *.pilot.openg2p.<your domain>	"CNAME" Record mapped to the domain of the above "A" record. (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.

Storage requirements for pilot environments

The following are the components in each K8s cluster that require persistent storage.

Component	Purpose	Storage Size
PostgreSQL	Database for all modules	TBD
MinIO Object Store	For storing documents	TBD
OpenSearch	For indexing service logs (And generating reports & dashboards).	TBD
Total		TBD