Adding a bare metal host to the cluster using YAML in the web console

You can add bare metal hosts to the cluster in the web console using a YAML file that describes the bare metal host.

Prerequisites

Install a {op-system} compute machine on bare metal infrastructure for use in the cluster.
Log in as a user with cluster-admin privileges.
Create a Secret CR for the bare metal host.

Procedure

In the web console, navigate to Compute → Bare Metal Hosts.
Select Add Host → New from YAML.
Copy and paste the below YAML, modifying the relevant fields with the details of your host:
```
apiVersion: metal3.io/v1alpha1
kind: BareMetalHost
metadata:
  name: <bare_metal_host_name>
spec:
  online: true
  bmc:
    address: <bmc_address>
    credentialsName: <secret_credentials_name>  (1)
    disableCertificateVerification: True (2)
  bootMACAddress: <host_boot_mac_address>
```
1. credentialsName must reference a valid Secret CR. The baremetal-operator cannot manage the bare metal host without a valid Secret referenced in the credentialsName. For more information about secrets and how to create them, see Understanding secrets.
2. Setting disableCertificateVerification to true disables TLS host validation between the cluster and the baseboard management controller (BMC).
Select Create to save the YAML and create the new bare metal host.
Scale up the number of replicas to match the number of available bare metal hosts. Navigate to Compute → MachineSets, and increase the number of machines in the cluster by selecting Edit Machine count from the Actions drop-down menu.

Note

You can also manage the number of bare metal nodes using the oc scale command and the appropriate bare metal compute machine set.

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