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74 lines
2.2 KiB
Plaintext
74 lines
2.2 KiB
Plaintext
// Module included in the following assemblies:
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//
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// *nodes/nodes/nodes-nodes-adding-node-iso.adoc
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:_mod-docs-content-type: PROCEDURE
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[id="adding-node-iso-flags_{context}"]
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= Adding a node with command flags
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You can add a single node to your cluster by using command flags to specify configurations for the new node.
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.Prerequisites
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* You have installed the OpenShift CLI (`oc`)
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* You have installed the Rsync utility
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* You have an active connection to your target cluster
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* You have a kubeconfig file available
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.Procedure
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. Generate the ISO image by running the following command. The MAC address must be specified using a command flag. See the "Cluster configuration reference" section for more flags that you can use with this command.
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+
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[source,terminal]
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----
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$ oc adm node-image create --mac-address=<mac_address>
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----
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--
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where:
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`<mac_address>`:: Specifies the MAC address of the node that is being added.
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--
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[IMPORTANT]
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====
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In order for the `create` command to fetch a release image that matches the target cluster version, you must specify a valid pull secret.
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You can specify the pull secret either by using the `--registry-config` flag or by setting the `REGISTRY_AUTH_FILE` environment variable beforehand.
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====
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[TIP]
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====
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To see additional flags that can be used to configure your node, run the following `oc adm node-image create --help` command.
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====
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. Verify that a new `node.<arch>.iso` file is present in the asset directory.
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The asset directory is your current directory, unless you specified a different one when creating the ISO image.
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. Boot the node with the generated ISO image.
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. Track progress of the node creation by running the following command:
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[source,terminal]
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----
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$ oc adm node-image monitor --ip-addresses <ip_address>
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----
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--
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where:
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`<ip_address>`:: Specifies a list of the IP addresses of the nodes that are being added.
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--
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[NOTE]
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====
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If reverse DNS entries are not available for your node, the `oc adm node-image monitor` command skips checks for pending certificate signing requests (CSRs).
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If these checks are skipped, you must manually check for CSRs by running the `oc get csr` command.
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====
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. Approve the pending CSRs by running the following command for each CSR:
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[source,terminal]
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----
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$ oc adm certificate approve <csr_name>
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----
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