Before you begin¶
Before you start the cluster deployment, verify that your system meets the following minimum hardware and software requirements for a vSphere-based management cluster:
Note
For the bootstrap node, you can use any local machine running Ubuntu 20.04 with the following resources:
2 vCPUs
4 GB of RAM
5 GB of available storage
Resource |
Requirement |
---|---|
# of hypervisors |
1 |
# of nodes |
3 (HA) |
# of vCPUs |
24 (8 vCPUs per node) |
RAM in GB |
72 (24 per node) |
Storage in GB |
360 (120 per node) that must be shared to the hypervisor |
RHEL license (for RHEL deployments only) |
1 RHEL license for Virtual Datacenters per hypervisor |
Obligatory vSphere capabilities |
DRS,
Shared datastore
|
IP subnet size |
Minimum 20 IPs:
Also, consider the supported VMware vSphere network objects and IPAM recommendations. |
Software |
Version |
---|---|
Operating system distribution |
For the bootstrap node: Ubuntu 20.04 or RHEL 8.7
For the Container Cloud clusters:
|
VMware vSphere |
7.0 or 6.7 |
cloud-init version 2 |
19.4 for RHEL/CentOS 7.9, 20.3 for RHEL 8.7 1 |
VMware Tools version 2 |
11.0.5 |
- 1(1,2,3)
RHEL 8.7 is generally available since Cluster releases 16.0.0 and 14.1.0. Before these Cluster releases, it is supported within the Technology Preview features scope.
CentOS 7.9 is supported as TechPreview.
A Container Cloud cluster based on both RHEL and CentOS operating systems or on mixed RHEL versions, such as RHEL 7.9 and 8.7, is not supported.
- 2(1,2)
The minimal
open-vm-tools
andcloud-init
packages versions built for the VM template.