Installation configuration parameters for Nutanix
- Available installation configuration parameters for Nutanix

Installation configuration parameters for Nutanix

Before you deploy an OKD cluster on Nutanix, you provide parameters to customize your cluster and the platform that hosts it. When you create the install-config.yaml file, you provide values for the required parameters through the command line. You can then modify the install-config.yaml file to customize your cluster further.

Available installation configuration parameters for Nutanix

The following tables specify the required, optional, and Nutanix-specific installation configuration parameters that you can set as part of the installation process.

After installation, you cannot modify these parameters in the install-config.yaml file.

Required configuration parameters

Required installation configuration parameters are described in the following table:

Table 1. Required parameters
Parameter	Description	Values
`apiVersion`	The API version for the `install-config.yaml` content. The current version is `v1`. The installation program may also support older API versions.	String
`baseDomain`	The base domain of your cloud provider. The base domain is used to create routes to your OKD cluster components. The full DNS name for your cluster is a combination of the `baseDomain` and `metadata.name` parameter values that uses the `<metadata.name>.<baseDomain>` format.	A fully-qualified domain or subdomain name, such as `example.com`.
`metadata`	Kubernetes resource `ObjectMeta`, from which only the `name` parameter is consumed.	Object
`metadata.name`	The name of the cluster. DNS records for the cluster are all subdomains of `{{.metadata.name}}.{{.baseDomain}}`.	String of lowercase letters and hyphens (`-`), such as `dev`.
`platform`	The configuration for the specific platform upon which to perform the installation: `alibabacloud`, `aws`, `baremetal`, `azure`, `gcp`, `ibmcloud`, `nutanix`, `openstack`, `powervs`, `vsphere`, or `{}`. For additional information about `platform.<platform>` parameters, consult the table for your specific platform that follows.	Object

Network configuration parameters

You can customize your installation configuration based on the requirements of your existing network infrastructure. For example, you can expand the IP address block for the cluster network or provide different IP address blocks than the defaults.

Only IPv4 addresses are supported.

Globalnet is not supported with Red Hat OpenShift Data Foundation disaster recovery solutions. For regional disaster recovery scenarios, ensure that you use a nonoverlapping range of private IP addresses for the cluster and service networks in each cluster.

Parameter Description Values

networking

The configuration for the cluster network.

Object

You cannot modify parameters specified by the networking object after installation.

networking.networkType

The Red Hat OpenShift Networking network plugin to install.

Either OpenShiftSDN or OVNKubernetes. The default value is OVNKubernetes.

networking.clusterNetwork

The IP address blocks for pods.

The default value is 10.128.0.0/14 with a host prefix of /23.

If you specify multiple IP address blocks, the blocks must not overlap.

An array of objects. For example:

networking:
  clusterNetwork:
  - cidr: 10.128.0.0/14
    hostPrefix: 23

networking.clusterNetwork.cidr

Required if you use networking.clusterNetwork. An IP address block.

An IPv4 network.

An IP address block in Classless Inter-Domain Routing (CIDR) notation. The prefix length for an IPv4 block is between 0 and 32.

networking.clusterNetwork.hostPrefix

The subnet prefix length to assign to each individual node. For example, if hostPrefix is set to 23 then each node is assigned a /23 subnet out of the given cidr. A hostPrefix value of 23 provides 510 (2^(32 - 23) - 2) pod IP addresses.

A subnet prefix.

The default value is 23.

networking.serviceNetwork

The IP address block for services. The default value is 172.30.0.0/16.

The OpenShift SDN and OVN-Kubernetes network plugins support only a single IP address block for the service network.

An array with an IP address block in CIDR format. For example:

networking:
  serviceNetwork:
   - 172.30.0.0/16

networking.machineNetwork

The IP address blocks for machines.

If you specify multiple IP address blocks, the blocks must not overlap.

An array of objects. For example:

networking:
  machineNetwork:
  - cidr: 10.0.0.0/16

networking.machineNetwork.cidr

Required if you use networking.machineNetwork. An IP address block. The default value is 10.0.0.0/16 for all platforms other than libvirt and IBM Power Virtual Server. For libvirt, the default value is 192.168.126.0/24. For IBM Power Virtual Server, the default value is 192.168.0.0/24.

An IP network block in CIDR notation.

For example, 10.0.0.0/16.

Set the networking.machineNetwork to match the CIDR that the preferred NIC resides in.

Optional configuration parameters

Optional installation configuration parameters are described in the following table:

Parameter Description Values

additionalTrustBundle

A PEM-encoded X.509 certificate bundle that is added to the nodes’ trusted certificate store. This trust bundle may also be used when a proxy has been configured.

String

capabilities

Controls the installation of optional core cluster components. You can reduce the footprint of your OKD cluster by disabling optional components. For more information, see the “Cluster capabilities” page in Installing.

String array

capabilities.baselineCapabilitySet

Selects an initial set of optional capabilities to enable. Valid values are None, v4.11, v4.12 and vCurrent. The default value is vCurrent.

String

capabilities.additionalEnabledCapabilities

Extends the set of optional capabilities beyond what you specify in baselineCapabilitySet. You may specify multiple capabilities in this parameter.

String array

cpuPartitioningMode

Enables workload partitioning, which isolates OKD services, cluster management workloads, and infrastructure pods to run on a reserved set of CPUs. Workload partitioning can only be enabled during installation and cannot be disabled after installation. While this field enables workload partitioning, it does not configure workloads to use specific CPUs. For more information, see the Workload partitioning page in the Scalability and Performance section.

None or AllNodes. None is the default value.

compute

The configuration for the machines that comprise the compute nodes.

Array of MachinePool objects.

compute.architecture

Determines the instruction set architecture of the machines in the pool. Currently, clusters with varied architectures are not supported. All pools must specify the same architecture. Valid values are amd64 (the default).

String

compute.hyperthreading

Whether to enable or disable simultaneous multithreading, or hyperthreading, on compute machines. By default, simultaneous multithreading is enabled to increase the performance of your machines’ cores.

If you disable simultaneous multithreading, ensure that your capacity planning accounts for the dramatically decreased machine performance.

Enabled or Disabled

compute.name

Required if you use compute. The name of the machine pool.

worker

compute.platform

Required if you use compute. Use this parameter to specify the cloud provider to host the worker machines. This parameter value must match the controlPlane.platform parameter value.

alibabacloud, aws, azure, gcp, ibmcloud, nutanix, openstack, powervs, vsphere, or {}

compute.replicas

The number of compute machines, which are also known as worker machines, to provision.

A positive integer greater than or equal to 2. The default value is 3.

featureSet

Enables the cluster for a feature set. A feature set is a collection of OKD features that are not enabled by default. For more information about enabling a feature set during installation, see “Enabling features using feature gates”.

String. The name of the feature set to enable, such as TechPreviewNoUpgrade.

controlPlane

The configuration for the machines that comprise the control plane.

Array of MachinePool objects.

controlPlane.architecture

String

controlPlane.hyperthreading

Whether to enable or disable simultaneous multithreading, or hyperthreading, on control plane machines. By default, simultaneous multithreading is enabled to increase the performance of your machines’ cores.

If you disable simultaneous multithreading, ensure that your capacity planning accounts for the dramatically decreased machine performance.

Enabled or Disabled

controlPlane.name

Required if you use controlPlane. The name of the machine pool.

master

controlPlane.platform

Required if you use controlPlane. Use this parameter to specify the cloud provider that hosts the control plane machines. This parameter value must match the compute.platform parameter value.

alibabacloud, aws, azure, gcp, ibmcloud, nutanix, openstack, powervs, vsphere, or {}

controlPlane.replicas

The number of control plane machines to provision.

The only supported value is 3, which is the default value.

credentialsMode

The Cloud Credential Operator (CCO) mode. If no mode is specified, the CCO dynamically tries to determine the capabilities of the provided credentials, with a preference for mint mode on the platforms where multiple modes are supported.

Mint, Passthrough, Manual or an empty string (“”). ^[1]

imageContentSources

Sources and repositories for the release-image content.

Array of objects. Includes a source and, optionally, mirrors, as described in the following rows of this table.

imageContentSources.source

Required if you use imageContentSources. Specify the repository that users refer to, for example, in image pull specifications.

String

imageContentSources.mirrors

Specify one or more repositories that may also contain the same images.

Array of strings

publish

How to publish or expose the user-facing endpoints of your cluster, such as the Kubernetes API, OpenShift routes.

Internal or External. The default value is External.

Setting this field to Internal is not supported on non-cloud platforms.

If the value of the field is set to Internal, the cluster will become non-functional. For more information, refer to BZ#1953035.

sshKey

The SSH key to authenticate access to your cluster machines.

For production OKD clusters on which you want to perform installation debugging or disaster recovery, specify an SSH key that your ssh-agent process uses.

For example, sshKey: ssh-ed25519 AAAA...

Not all CCO modes are supported for all cloud providers. For more information about CCO modes, see the “Managing cloud provider credentials” entry in the Authentication and authorization content.

Additional Nutanix configuration parameters

Additional Nutanix configuration parameters are described in the following table:

Table 4. Additional Nutanix cluster parameters
Parameter	Description	Values
`compute.platform.nutanix.categories.key`	The name of a prism category key to apply to compute VMs. This parameter must be accompanied by the `value` parameter, and both `key` and `value` parameters must exist in Prism Central. For more information on categories, see Category management.	String
`compute.platform.nutanix.categories.value`	The value of a prism category key-value pair to apply to compute VMs. This parameter must be accompanied by the `key` parameter, and both `key` and `value` parameters must exist in Prism Central.	String
`compute.platform.nutanix.project.type`	The type of identifier you use to select a project for compute VMs. Projects define logical groups of user roles for managing permissions, networks, and other parameters. For more information on projects, see Projects Overview.	`name` or `uuid`
`compute.platform.nutanix.project.name` or `compute.platform.nutanix.project.uuid`	The name or UUID of a project with which compute VMs are associated. This parameter must be accompanied by the `type` parameter.	String
`compute.platform.nutanix.bootType`	The boot type that the compute machines use. You must use the `Legacy` boot type in OKD 4.14. For more information on boot types, see Understanding UEFI, Secure Boot, and TPM in the Virtualized Environment.	`Legacy`, `SecureBoot` or `UEFI`. The default is `Legacy`.
`controlPlane.platform.nutanix.categories.key`	The name of a prism category key to apply to control plane VMs. This parameter must be accompanied by the `value` parameter, and both `key` and `value` parameters must exist in Prism Central. For more information on categories, see Category management.	String
`controlPlane.platform.nutanix.categories.value`	The value of a prism category key-value pair to apply to control plane VMs. This parameter must be accompanied by the `key` parameter, and both `key` and `value` parameters must exist in Prism Central.	String
`controlPlane.platform.nutanix.project.type`	The type of identifier you use to select a project for control plane VMs. Projects define logical groups of user roles for managing permissions, networks, and other parameters. For more information on projects, see Projects Overview.	`name` or `uuid`
`controlPlane.platform.nutanix.project.name` or `controlPlane.platform.nutanix.project.uuid`	The name or UUID of a project with which control plane VMs are associated. This parameter must be accompanied by the `type` parameter.	String
`platform.nutanix.defaultMachinePlatform.categories.key`	The name of a prism category key to apply to all VMs. This parameter must be accompanied by the `value` parameter, and both `key` and `value` parameters must exist in Prism Central. For more information on categories, see Category management.	String
`platform.nutanix.defaultMachinePlatform.categories.value`	The value of a prism category key-value pair to apply to all VMs. This parameter must be accompanied by the `key` parameter, and both `key` and `value` parameters must exist in Prism Central.	String
`platform.nutanix.defaultMachinePlatform.project.type`	The type of identifier you use to select a project for all VMs. Projects define logical groups of user roles for managing permissions, networks, and other parameters. For more information on projects, see Projects Overview.	`name` or `uuid`.
`platform.nutanix.defaultMachinePlatform.project.name` or `platform.nutanix.defaultMachinePlatform.project.uuid`	The name or UUID of a project with which all VMs are associated. This parameter must be accompanied by the `type` parameter.	String
`platform.nutanix.defaultMachinePlatform.bootType`	The boot type for all machines. You must use the `Legacy` boot type in OKD 4.14. For more information on boot types, see Understanding UEFI, Secure Boot, and TPM in the Virtualized Environment.	`Legacy`, `SecureBoot` or `UEFI`. The default is `Legacy`.
`platform.nutanix.apiVIP`	The virtual IP (VIP) address that you configured for control plane API access.	IP address
`platform.nutanix.ingressVIP`	The virtual IP (VIP) address that you configured for cluster ingress.	IP address
`platform.nutanix.prismCentral.endpoint.address`	The Prism Central domain name or IP address.	String
`platform.nutanix.prismCentral.endpoint.port`	The port that is used to log into Prism Central.	String
`platform.nutanix.prismCentral.password`	The password for the Prism Central user name.	String
`platform.nutanix.prismCentral.username`	The user name that is used to log into Prism Central.	String
`platform.nutanix.prismElments.endpoint.address`	The Prism Element domain name or IP address. [¹]	String
`platform.nutanix.prismElments.endpoint.port`	The port that is used to log into Prism Element.	String
`platform.nutanix.prismElements.uuid`	The universally unique identifier (UUID) for Prism Element.	String
`platform.nutanix.subnetUUIDs`	The UUID of the Prism Element network that contains the virtual IP addresses and DNS records that you configured. [²]	String
`platform.nutanix.clusterOSImage`	Optional: By default, the installation program downloads and installs the Fedora CoreOS (FCOS) image. If Prism Central does not have internet access, you can override the default behavior by hosting the FCOS image on any HTTP server and pointing the installation program to the image.	An HTTP or HTTPS URL, optionally with a SHA-256 checksum. For example, http://example.com/images/rhcos-47.83.202103221318-0-nutanix.x86_64.qcow2

The prismElements section holds a list of Prism Elements (clusters). A Prism Element encompasses all of the Nutanix resources, for example virtual machines and subnets, that are used to host the OKD cluster. Only a single Prism Element is supported.
Only one subnet per OKD cluster is supported.