vSphere Prerequisites and Resource Requirements
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This topic describes the prerequisites and resource requirements for installing VMware Tanzu Kubernetes Grid Integrated Edition on vSphere.
For prerequisites and resource requirements for installing Tanzu Kubernetes Grid Integrated Edition on vSphere with NSX-T integration, see vSphere with NSX-T Version Requirements and Hardware Requirements for Tanzu Kubernetes Grid Integrated Edition on vSphere with NSX-T.
Prerequisites
Before installing Tanzu Kubernetes Grid Integrated Edition:
Review the sections below and the instructions in Creating Dedicated Users and Roles for vSphere (Optional).
Install and configure Ops Manager. To install Ops Manager, follow the instructions in Installing and Configuring Ops Manager on vSphere.
vSphere Version Requirements
For Tanzu Kubernetes Grid Integrated Edition on vSphere version requirements, refer to the VMware Product Interoperability Matrices.
Resource Requirements
Installing Ops Manager and Tanzu Kubernetes Grid Integrated Edition requires the following virtual machines (VMs):
| VM | CPU | Memory (GB) | Ephemeral Disk (GB) |
|---|---|---|---|
| BOSH Director | 2 | 8 | 16 |
| Ops Manager | 1 | 8 | 160 |
| TKGI API | 2 | 8 | 64 |
| TKGI Database | 2 | 8 | 64 |
NOTE: VMware recommends deploying TKGI on its own dedicated Ops Manager instance, rather than on a shared Ops Manager that also hosts other runtimes such as Tanzu Application Service.
Storage Requirements for Large Numbers of Pods
If you expect the cluster workload to run a large number of pods continuously, then increase the size of persistent disk storage allocated to the TKGI Database VM as follows:
| Number of Pods | Persistent Disk Requirements (GB) |
|---|---|
| 1,000 pods | 20 |
| 5,000 pods | 100 |
| 10,000 pods | 200 |
| 50,000 pods | 1,000 |
Ephemeral VM Resources
Each Tanzu Kubernetes Grid Integrated Edition deployment requires ephemeral VMs during installation and upgrades of Tanzu Kubernetes Grid Integrated Edition. After you deploy Tanzu Kubernetes Grid Integrated Edition, BOSH automatically deletes these VMs.
To enable Tanzu Kubernetes Grid Integrated Edition to dynamically create the ephemeral VMs when needed, ensure that the following resources are available in your vSphere infrastructure before deploying Tanzu Kubernetes Grid Integrated Edition:
| Ephemeral VM | VM Count | CPU Cores | Memory (GB) | Ephemeral Disk (GB) |
|---|---|---|---|---|
| BOSH Compilation VMs | 4 | 4 | 4 | 32 |
Kubernetes Cluster Resources
Each Kubernetes cluster provisioned through Tanzu Kubernetes Grid Integrated Edition deploys the VMs listed below. If you deploy more than one Kubernetes cluster, you must scale your allocated resources appropriately.
| VM | VM Count | CPU Cores | Memory (GB) | Ephemeral Disk (GB) | Persistent Disk (GB) |
|---|---|---|---|---|---|
| master | 1 or 3 | 2 | 4 | 8 | 5 |
| worker | 1 or more | 2 | 4 | 8 | 50 |
| errand (ephemeral) | 1 | 1 | 1 | 8 | none |
Network Communication Requirements
For a complete list of network communication requirements for vSphere without NSX-T, see VMware Ports and Protocols on the VMware site.
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