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43 lines
2.1 KiB
Plaintext
43 lines
2.1 KiB
Plaintext
// TODO - possibly delete this file
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// Or does it add actual value?
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// Module included in the following assemblies:
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//
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// * networking/cluster-network-operator.adoc
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// * installing/installing_aws/installing-aws-network-customizations.adoc
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// * installing/installing_azure/installing-azure-network-customizations.adoc
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// * installing/installing_bare_metal/installing-bare-metal-network-customizations.adoc
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// * installing/installing_ibm_cloud/installing-ibm-cloud-network-customizations.adoc
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// * installing/installing_vsphere/installing-vsphere-network-customizations.adoc
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// * installing/installing_vsphere/installing-vsphere-installer-provisioned-network-customizations.adoc
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// * installing/installing_gcp/installing-gcp-network-customizations.adoc
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// * installing/installing_azure_stack_hub/installing-azure-stack-hub-network-customizations.adoc
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[id="nw-network-config_{context}"]
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= Network configuration phases
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There are two phases prior to {product-title} installation where you can customize the network configuration.
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Phase 1:: You can customize the following network-related fields in the `install-config.yaml` file before you create the manifest files:
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+
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* `networking.networkType`
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* `networking.clusterNetwork`
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* `networking.serviceNetwork`
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* `networking.machineNetwork`
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+
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For more information, see "Installation configuration parameters".
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[NOTE]
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====
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Set the `networking.machineNetwork` to match the Classless Inter-Domain Routing (CIDR) where the preferred subnet is located.
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====
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+
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[IMPORTANT]
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====
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The CIDR range `172.17.0.0/16` is reserved by `libVirt`. You cannot use any other CIDR range that overlaps with the `172.17.0.0/16` CIDR range for networks in your cluster.
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====
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Phase 2:: After creating the manifest files by running `openshift-install create manifests`, you can define a customized Cluster Network Operator manifest with only the fields you want to modify. You can use the manifest to specify advanced network configuration.
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During phase 2, you cannot override the values that you specified in phase 1 in the `install-config.yaml` file. However, you can customize the network plugin during phase 2.
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