OSDOCS-16614: Documented VIP optional with user-managed LB feature #104065
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| // Module included in the following assemblies: | ||
| // | ||
| // * installing/installing_bare_metal/upi/installing-bare-metal-network-customizations.adoc | ||
| // * installing/installing_bare_metal/upi/installing-bare-metal.adoc | ||
| // * installing/installing_bare_metal/upi/installing-restricted-networks-bare-metal.adoc | ||
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| :_mod-docs-content-type: CONCEPT | ||
| [id="installation-bare-metal-dns-record-type_{context}"] | ||
| = Configuring the DnsRecordsType parameter | ||
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| [role="_abstract"] | ||
| You can use the `DnsRecordsType` parameter in your `infrastructure.config.openshift.io` custom resource (CR) to set if the internal DNS service or an external source provides the necessary records for `api`, `api-int`, and `ingress` DNS records. | ||
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| :FeatureName: Configuring the DnsRecordsType parameter | ||
| include::snippets/technology-preview.adoc[] | ||
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| To use the parameter, you must enable the `OnPremDNSRecords` feature gate in the `config.yaml` file. | ||
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There was a problem hiding this comment. The featuregate is part of the TechPreview featureset. There's no explicit enablement required. |
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| The `dnsRecordsType` parameter supports the following values: | ||
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| * `Internal`: The default value. Setting this value causes the cluster infrastructure to automatically create and maintain the necessary DNS records. | ||
| * `External`: You can use this value only if you set the `loadBalancer.type` parameter to `UserManaged`. The cluster does not manage the DNS records. You must manually configure DNS records on an external DNS server. | ||
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| .Prerequisites | ||
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| * You created DNS records, such as `api`, `api-int`, or `\*.apps`. | ||
| * You configured a user-managed load balancer for your cluster. | ||
| * If you intend on setting `dnsRecordsType.External` in the `infrastructure.config.openshift.io` CR , you must initially configure cluster nodes to use the specific external server for DNS resolution. | ||
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| .Procedure | ||
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| . Edit the `featuregate.config.openshift.io/cluster` CR and set the `featureSet.customNoUpgrade.enabled` parameter to the `OnPremDNSRecords` value: | ||
| + | ||
| [source,yaml] | ||
| ---- | ||
| apiVersion: config.openshift.io/v1 | ||
| kind: FeatureGate | ||
| metadata: | ||
| name: cluster | ||
| spec: | ||
| featureSet: CustomNoUpgrade | ||
| customNoUpgrade: | ||
| enabled: | ||
| - OnPremDNSRecords | ||
| # ... | ||
| ---- | ||
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| * Edit your `infrastructure.config.openshift.io` CR by setting the `dnsRecordsType` parameter to the `External` value: | ||
| + | ||
| [source,yaml] | ||
| ---- | ||
| apiVersion: config.openshift.io/v1 | ||
| kind: Infrastructure | ||
| metadata: | ||
| name: cluster | ||
| spec: | ||
| platformSpec: | ||
| baremetal: | ||
| dnsRecordsType: External | ||
| # ... | ||
| ---- | ||
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This can't be configured via the CR. It can only be set at install time in install-config.yaml.