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50 lines
2.2 KiB
Plaintext
50 lines
2.2 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * networking/k8s_nmstate/k8s-observing-node-network-state.adoc
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:_mod-docs-content-type: CONCEPT
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[id="node-network-configuration-policy-file_{context}"]
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= The NodeNetworkConfigurationPolicy manifest file
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A `NodeNetworkConfigurationPolicy` (NNCP) manifest file defines policies that the Kubernetes NMState Operator uses to configure networking for nodes that exist in an {product-title} cluster.
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After you apply a node network policy to a node, the Kubernetes NMState Operator configures the networking configuration for nodes according to the node network policy details.
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[WARNING]
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====
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The following list of interface names are reserved and you cannot use the names with NMstate configurations:
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* `br-ext`
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* `br-int`
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* `br-local`
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* `br-nexthop`
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* `br0`
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* `ext-vxlan`
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* `ext`
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* `genev_sys_*`
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* `int`
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* `k8s-*`
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* `ovn-k8s-*`
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* `patch-br-*`
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* `tun0`
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* `vxlan_sys_*`
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====
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You can create an NNCP by using either the {oc-first} or the {product-title} web console. As a postinstallation task you can create an NNCP or edit an existing NNCP.
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[NOTE]
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====
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Before you create an NNCP, ensure that you read the "Example policy configurations for different interfaces" document.
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====
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If you want to delete an NNCP, you can use the `oc delete nncp` command to complete this action. However, this command does not delete any objects, such as a bridge interface.
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Deleting the node network policy that added an interface to a node does not change the configuration of the policy on the node. Similarly, removing an interface does not delete the policy, because the Kubernetes NMState Operator re-adds the removed interface whenever a pod or a node is restarted.
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To effectively delete the NNCP, the node network policy, and any interfaces would typically require the following actions:
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. Edit the NNCP and remove interface details from the file. Ensure that you do not remove `name`, `state`, and `type` parameters from the file.
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. Add `state: absent` under the `interfaces.state` section of the NNCP.
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. Run `oc apply -f <nncp_file_name>`. After the Kubernetes NMState Operator applies the node network policy to each node in your cluster, any interface that exists on each node is now marked as _absent_.
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. Run `oc delete nncp` to delete the NNCP.
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