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. |
| "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. |
| "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 |
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