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 7.9
For the Container Cloud clusters:
|
VMware vSphere |
7.0 or 6.7 |
cloud-init version *** |
19.4 for RHEL/CentOS 7.9, 20.3 for RHEL 8.4 ** |
VMware Tools version *** |
11.0.5 |
* - RHEL 7.8 deployment is possible with allowed access to the
rhel-7-server-rpms
repository provided by the Red Hat Enterprise Linux
Server 7 x86_64.
Verify that your RHEL license or activation key meets this requirement.
** - Support of the CentOS and RHEL 8.4 operating systems is available as Technology Preview. Use these configurations for testing and evaluation purposes only.
A Container Cloud cluster based on both RHEL and CentOS operating systems or on mixed RHEL versions is not supported.
*** - The minimal open-vm-tools
and cloud-init
packages versions
built for the VM template.