vSphere Prerequisites and Resource Requirements

Note: As of v1.8, Enterprise PKS has been renamed to VMware Tanzu Kubernetes Grid Integrated Edition. Some screenshots in this documentation do not yet reflect the change.

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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:

  1. Review the sections below and the instructions in Creating Dedicated Users and Roles for vSphere (Optional).

  2. 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

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 Firewall Ports and Protocols Requirements for vSphere without NSX-T.


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