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48 lines
2.3 KiB
Plaintext
48 lines
2.3 KiB
Plaintext
:_mod-docs-content-type: REFERENCE
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[id="telco-hub-hub-cluster-openshift-deployment_{context}"]
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= {product-title} installation on the hub cluster
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Description::
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+
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--
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The reference method for installing {product-title} for the hub cluster is through the Agent-based Installer.
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Agent-based Installer provides installation capabilities without additional centralized infrastructure.
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The Agent-based Installer creates an ISO image, which you mount to the server to be installed.
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When you boot the server, {product-title} is installed alongside optionally supplied extra manifests, such as the {gitops-title} Operator.
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[NOTE]
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====
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You can also install {product-title} in the hub cluster by using other installation methods.
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====
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If hub cluster functions are being applied to an existing {product-title} cluster, the Agent-based Installer installation is not required.
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The remaining steps to install Day 2 Operators and configure the cluster for these functions remains the same.
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When {product-title} installation is complete, the set of additional Operators and their configuration must be installed on the hub cluster.
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The reference configuration includes all of these custom resources (CRs), which you can apply manually, for example:
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[source,terminal]
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----
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$ oc apply -f <reference_cr>
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----
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You can also add the reference configuration to the Git repository and apply it using ArgoCD.
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[NOTE]
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====
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If you apply the CRs manually, ensure you apply the CRs in the order of their dependencies. For example, apply namespaces before Operators and apply Operators before configurations.
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====
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--
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Limits and requirements::
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* Agent-based Installer requires an accessible image repository containing all required {product-title} and Day 2 Operator images.
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* Agent-based Installer builds ISO images based on a specific OpenShift releases and specific cluster details.
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Installation of a second hub requires a separate ISO image to be built.
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Engineering considerations::
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* Agent-based Installer provides a baseline {product-title} installation.
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You apply Day 2 Operators and other configuration CRs after the cluster is installed.
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* The reference configuration supports Agent-based Installer installation in a disconnected environment.
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* A limited set of additional manifests can be supplied at installation time.
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