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HCIDOCS-216: Provided clarifications on the use of static DNS address settings..

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John Wilkins
2024-04-03 12:28:36 -07:00
committed by openshift-cherrypick-robot
parent e54d66ab74
commit 56222bc833
2 changed files with 7 additions and 5 deletions
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2
modules/ipi-install-additional-install-config-parameters.adoc
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@@ -26,7 +26,7 @@ and the `bmc` parameter for the `install-config.yaml` file.
| `bootstrapExternalStaticDNS`
|
| The static network DNS of the bootstrap node. This can be useful in environments without a DHCP server.
| The static network DNS of the bootstrap node. You must set this value when deploying a cluster with static IP addresses when there is no Dynamic Host Configuration Protocol (DHCP) server on the bare-metal network. If you do not set this value, the installation program will use the value from `bootstrapExternalStaticGateway`, which causes problems when the IP address values of the gateway and DNS are different.
| `bootstrapExternalStaticIP`
|

10
modules/ipi-install-configuring-the-install-config-file.adoc
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@@ -43,16 +43,17 @@ platform:
provisioningNetworkCIDR: <CIDR>
bootstrapExternalStaticIP: <bootstrap_static_ip_address> <2>
bootstrapExternalStaticGateway: <bootstrap_static_gateway> <3>
bootstrapExternalStaticDNS: <bootstrap_static_dns> <4>
hosts:
- name: openshift-master-0
role: master
bmc:
address: ipmi://<out_of_band_ip> <4>
address: ipmi://<out_of_band_ip> <5>
username: <user>
password: <password>
bootMACAddress: <NIC1_mac_address>
rootDeviceHints:
deviceName: "<installation_disk_drive_path>" <5>
deviceName: "<installation_disk_drive_path>" <6>
- name: <openshift_master_1>
role: master
bmc:
@@ -95,8 +96,9 @@ sshKey: '<ssh_pub_key>'
<1> Scale the worker machines based on the number of worker nodes that are part of the {product-title} cluster. Valid options for the `replicas` value are `0` and integers greater than or equal to `2`. Set the number of replicas to `0` to deploy a three-node cluster, which contains only three control plane machines. A three-node cluster is a smaller, more resource-efficient cluster that can be used for testing, development, and production. You cannot install the cluster with only one worker.
<2> When deploying a cluster with static IP addresses, you must set the `bootstrapExternalStaticIP` configuration setting to specify the static IP address of the bootstrap VM when there is no DHCP server on the bare-metal network.
<3> When deploying a cluster with static IP addresses, you must set the `bootstrapExternalStaticGateway` configuration setting to specify the gateway IP address for the bootstrap VM when there is no DHCP server on the bare-metal network.
<4> See the BMC addressing sections for more options.
<5> To set the path to the installation disk drive, enter the kernel name of the disk. For example, `/dev/sda`.
<4> When deploying a cluster with static IP addresses, you must set the `bootstrapExternalStaticDNS` configuration setting to specify the DNS address for the bootstrap VM when there is no DHCP server on the bare-metal network.
<5> See the BMC addressing sections for more options.
<6> To set the path to the installation disk drive, enter the kernel name of the disk. For example, `/dev/sda`.
+
[IMPORTANT]
====