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Merge pull request #48788 from rohennes/BZ2099211-expanding-bm-cluster
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‎installing/installing_bare_metal_ipi/ipi-install-expanding-the-cluster.adoc

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@@ -31,7 +31,9 @@ include::modules/ipi-install-replacing-a-bare-metal-control-plane-node.adoc[leve
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* xref:../../backup_and_restore/control_plane_backup_and_restore/backing-up-etcd.adoc#backing-up-etcd-data_backup-etcd[Backing up etcd]
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* xref:../../post_installation_configuration/bare-metal-configuration.adoc#post-install-bare-metal-configuration[Bare metal configuration]
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* xref:../../post_installation_configuration/bare-metal-configuration.adoc#post-install-bare-metal-configuration[Bare metal configuration]
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* xref:../installing_bare_metal_ipi/ipi-install-installation-workflow.adoc#bmc-addressing_ipi-install-installation-workflow[BMC addressing]
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include::modules/ipi-install-preparing-to-deploy-with-virtual-media-on-the-baremetal-network.adoc[leveloffset=+1]
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‎modules/ipi-install-replacing-a-bare-metal-control-plane-node.adoc

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@@ -46,11 +46,13 @@ baremetal 4.10.12 True False False 3d15h
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[source,terminal]
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----
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$ oc delete bmh -n openshift-machine-api vmaster-0
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$ oc delete machine -n openshift-machine-api kni1-master-0
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$ oc delete bmh -n openshift-machine-api <host_name>
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$ oc delete machine -n openshift-machine-api <machine_name>
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----
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+
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Replace `<host_name>` with the name of the host and `<machine_name>` with the name of the machine. The machine name appears under the `CONSUMER` field.
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After you remove the `BareMetalHost` and `Machine` objects, then the `Machine` controller automatically deletes the `Node` object.
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After you remove the `BareMetalHost` and `Machine` objects, then the machine controller automatically deletes the `Node` object.
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. Create the new `BareMetalHost` object and the secret to store the BMC credentials:
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@@ -60,30 +62,35 @@ $ cat <<EOF | oc apply -f -
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apiVersion: v1
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kind: Secret
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metadata:
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name: kni1-master-0-bmc-secret
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name: control-plane-<num>-bmc-secret <1>
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namespace: openshift-machine-api
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data:
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password: <username>
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username: <password>
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password: <base64_of_uid> <2>
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username: <base64_of_pwd> <3>
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type: Opaque
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---
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apiVersion: metal3.io/v1alpha1
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kind: BareMetalHost
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metadata:
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name: kni1-master-0
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name: control-plane-<num> <1>
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namespace: openshift-machine-api
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spec:
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automatedCleaningMode: disabled
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bmc:
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address: redfish-virtualmedia+http://192.168.124.113:8000/redfish/v1/Systems/f87eaf82-b32d-4291-ace6-b28677964e78
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credentialsName: kni1-master-0-bmc-secret
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bootMACAddress: aa:aa:aa:aa:ab:03
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address: <protocol>://<bmc_ip> <4>
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credentialsName: control-plane-<num>-bmc-secret <1>
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bootMACAddress: <NIC1_mac_address> <5>
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bootMode: UEFI
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externallyProvisioned: false
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hardwareProfile: unknown
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online: true
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EOF
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----
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<1> Replace `<num>` for the control plane number of the bare metal node in the `name` fields and the `credentialsName` field.
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<2> Replace `<base64_of_uid>` with the `base64` string of the user name.
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<3> Replace `<base64_of_pwd>` with the `base64` string of the password.
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<4> Replace `<protocol>` with the BMC protocol, such as `redfish`, `redfish-virtualmedia`, `idrac-virtualmedia`, or others. Replace `<bmc_ip>` with the IP address of the bare metal node's baseboard management controller. For additional BMC configuration options, see "BMC addressing" in the _Additional resources_ section.
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<5> Replace `<NIC1_mac_address>` with the MAC address of the bare metal node's first NIC.
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After the inspection is complete, the `BareMetalHost` object is created and available to be provisioned.
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.Example output
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[source,terminal]
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----
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NAME STATE CONSUMER ONLINE ERROR AGE
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kni1-master-0 available ocp-hkw9p-master-0 true 1h10m
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kni1-master-1 externally provisioned ocp-hkw9p-master-1 true 4h53m
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kni1-master-2 externally provisioned ocp-hkw9p-master-2 true 4h53m
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kni1-worker-0 provisioned ocp-hkw9p-worker-0-ktmmx true 4h53m
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kni1-worker-1 provisioned ocp-hkw9p-worker-0-l2zmb true 4h53m
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NAME STATE CONSUMER ONLINE ERROR AGE
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control-plane-1.example.com available control-plane-1 true 1h10m
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control-plane-2.example.com externally provisioned control-plane-2 true 4h53m
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control-plane-3.example.com externally provisioned control-plane-3 true 4h53m
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compute-1.example.com provisioned compute-1-ktmmx true 4h53m
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compute-1.example.com provisioned compute-2-l2zmb true 4h53m
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There are no `MachineSet` objects for control plane nodes, so you must create a `Machine` object instead. You can copy the `providerSpec` from another control plane `Machine` object.
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kind: Machine
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metadata:
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annotations:
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metal3.io/BareMetalHost: openshift-machine-api/kni1-master-0
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metal3.io/BareMetalHost: openshift-machine-api/control-plane-<num> <1>
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labels:
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machine.openshift.io/cluster-api-cluster: kni1
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machine.openshift.io/cluster-api-cluster: control-plane-<num> <1>
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machine.openshift.io/cluster-api-machine-role: master
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machine.openshift.io/cluster-api-machine-type: master
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name: kni1-master-0
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name: control-plane-<num> <1>
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namespace: openshift-machine-api
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spec:
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metadata: {}
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name: master-user-data-managed
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EOF
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----
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. To define and create the `BareMetalHost`, `Secret`, and `Machine` objects in a single step, create a YAML file (`example.yaml`) with their definitions and run the following command:
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[source,terminal]
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----
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$ oc create -f example.yaml
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----
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The provisioning process uses the baremetal-operator to install RHCOS and prepare the host to be added to the cluster.
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<1> Replace `<num>` for the control plane number of the bare metal node in the `name`, `labels` and `annotations` fields.
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. To view the `BareMetalHost` objects, run the following command:
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.Example output
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[source,terminal]
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----
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NAME STATE CONSUMER ONLINE ERROR AGE
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kni1-master-0 provisioned ocp-hkw9p-master-0 true 2h53m
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kni1-master-1 externally provisioned ocp-hkw9p-master-1 true 5h53m
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kni1-master-2 externally provisioned ocp-hkw9p-master-2 true 5h53m
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kni1-worker-0 provisioned ocp-hkw9p-worker-0-ktmmx true 5h53m
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kni1-worker-1 provisioned ocp-hkw9p-worker-0-l2zmb true 5h53m
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NAME STATE CONSUMER ONLINE ERROR AGE
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control-plane-1.example.com provisioned control-plane-1 true 2h53m
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control-plane-2.example.com externally provisioned control-plane-2 true 5h53m
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control-plane-3.example.com externally provisioned control-plane-3 true 5h53m
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compute-1.example.com provisioned compute-1-ktmmx true 5h53m
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compute-2.example.com provisioned compute-2-l2zmb true 5h53m
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. After the RHCOS installation, verify that the `BareMetalHost` is added to the cluster:
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.Example output
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[source,terminal]
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NAME STATUS ROLES AGE VERSION
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kni1-master-0 available master 4m2s v1.18.2
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kni1-master-1 available master 141m v1.18.2
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kni1-master-2 available master 141m v1.18.2
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kni1-worker-0 available worker 87m v1.18.2
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NAME STATUS ROLES AGE VERSION
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control-plane-1.example.com available master 4m2s v1.18.2
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control-plane-2.example.com available master 141m v1.18.2
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control-plane-3.example.com available master 141m v1.18.2
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compute-1.example.com available worker 87m v1.18.2
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compute-2.example.com available worker 87m v1.18.2
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[NOTE]
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====
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After replacement of the new control plane node, the etcd pod running in the new node is in `crashloopback` status. See "Replacing an unhealthy etcd member" for more information.
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After replacement of the new control plane node, the etcd pod running in the new node is in `crashloopback` status. See "Replacing an unhealthy etcd member" in the _Additional resources_ section for more information.
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====

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