Chapter 5. Automatically discovering bare metal nodes

Procedure

1. Enable Bare Metal auto-discovery in the undercloud.conf file:

   enable_node_discovery = True
   discovery_default_driver = ipmi

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   • enable_node_discovery - When enabled, any node that boots the introspection ramdisk using PXE is enrolled in the Bare Metal service (ironic) automatically.
   • discovery_default_driver - Sets the driver to use for discovered nodes. For example, ipmi.

2. Add your IPMI credentials to ironic:

   1. Add your IPMI credentials to a file named ipmi-credentials.json. Replace the SampleUsername, RedactedSecurePassword, and bmc_address values in this example to suit your environment:

      [
          {
              "description": "Set default IPMI credentials",
              "conditions": [
                  {"op": "eq", "field": "data://auto_discovered", "value": true}
              ],
              "actions": [
                  {"action": "set-attribute", "path": "driver_info/ipmi_username",
                   "value": "SampleUsername"},
                  {"action": "set-attribute", "path": "driver_info/ipmi_password",
                   "value": "RedactedSecurePassword"},
                  {"action": "set-attribute", "path": "driver_info/ipmi_address",
                   "value": "{data[inventory][bmc_address]}"}
              ]
          }
      ]

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3. Import the IPMI credentials file into ironic:

   $ openstack baremetal introspection rule import ipmi-credentials.json

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Procedure

1. Power on the required nodes.

2. Run the openstack baremetal node list command. You should see the new nodes listed in an enrolled state:

   $ openstack baremetal node list
   +--------------------------------------+------+---------------+-------------+--------------------+-------------+
   | UUID                                 | Name | Instance UUID | Power State | Provisioning State | Maintenance |
   +--------------------------------------+------+---------------+-------------+--------------------+-------------+
   | c6e63aec-e5ba-4d63-8d37-bd57628258e8 | None | None          | power off   | enroll             | False       |
   | 0362b7b2-5b9c-4113-92e1-0b34a2535d9b | None | None          | power off   | enroll             | False       |
   +--------------------------------------+------+---------------+-------------+--------------------+-------------+

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3. Set the resource class for each node:

   $ for NODE in `openstack baremetal node list -c UUID -f value` ; do openstack baremetal node set $NODE --resource-class baremetal ; done

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4. Configure the kernel and ramdisk for each node:

   $ for NODE in `openstack baremetal node list -c UUID -f value` ; do openstack baremetal node manage $NODE ; done
   $ openstack overcloud node configure --all-manageable

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5. Set all nodes to available:

   $ for NODE in `openstack baremetal node list -c UUID -f value` ; do openstack baremetal node provide $NODE ; done

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Procedure

1. Create a file named dell-drac-rules.json with the following contents:

   [
       {
           "description": "Set default IPMI credentials",
           "conditions": [
               {"op": "eq", "field": "data://auto_discovered", "value": true},
               {"op": "ne", "field": "data://inventory.system_vendor.manufacturer",
                "value": "Dell Inc."}
           ],
           "actions": [
               {"action": "set-attribute", "path": "driver_info/ipmi_username",
                "value": "SampleUsername"},
               {"action": "set-attribute", "path": "driver_info/ipmi_password",
                "value": "RedactedSecurePassword"},
               {"action": "set-attribute", "path": "driver_info/ipmi_address",
                "value": "{data[inventory][bmc_address]}"}
           ]
       },
       {
           "description": "Set the vendor driver for Dell hardware",
           "conditions": [
               {"op": "eq", "field": "data://auto_discovered", "value": true},
               {"op": "eq", "field": "data://inventory.system_vendor.manufacturer",
                "value": "Dell Inc."}
           ],
           "actions": [
               {"action": "set-attribute", "path": "driver", "value": "idrac"},
               {"action": "set-attribute", "path": "driver_info/drac_username",
                "value": "SampleUsername"},
               {"action": "set-attribute", "path": "driver_info/drac_password",
                "value": "RedactedSecurePassword"},
               {"action": "set-attribute", "path": "driver_info/drac_address",
                "value": "{data[inventory][bmc_address]}"}
           ]
       }
   ]

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   • Replace the user name and password values in this example to suit your environment:

2. Import the rule into ironic:

   $ openstack baremetal introspection rule import dell-drac-rules.json

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