Chapter 2. Deploy OpenShift Data Foundation using local storage devices You can deploy OpenShift Data Foundation on bare metal infrastructure where OpenShift Container Platform is already installed. Also, it is possible to deploy only the Multicloud Object Gateway (MCG) component with OpenShift Data Foundation. For more information, see Deploy standalone Multicloud Object Gateway . Perform the following steps to deploy OpenShift Data Foundation: Install Local Storage Operator . Install the Red Hat OpenShift Data Foundation Operator . Create OpenShift Data Foundation cluster on bare metal . 2.1. Installing Local Storage Operator Install the Local Storage Operator from the Operator Hub before creating Red Hat OpenShift Data Foundation clusters on local storage devices. Procedure Log in to the OpenShift Web Console. Click Operators OperatorHub . Type local storage in the Filter by keyword box to find the Local Storage Operator from the list of operators and click on it. Set the following options on the Install Operator page: Update channel as either 4.9 or stable . Installation mode as A specific namespace on the cluster . Installed Namespace as Operator recommended namespace openshift-local-storage . Update approval as Automatic . Click Install . Verification steps Verify that the Local Storage Operator shows a green tick indicating successful installation. 2.2. Installing Red Hat OpenShift Data Foundation Operator You can install Red Hat OpenShift Data Foundation Operator using the Red Hat OpenShift Container Platform Operator Hub. Prerequisites Access to an OpenShift Container Platform cluster using an account with cluster-admin and Operator installation permissions. You must have at least three worker nodes in the Red Hat OpenShift Container Platform cluster. For additional resource requirements, see the Planning your deployment guide. Important When you need to override the cluster-wide default node selector for OpenShift Data Foundation, you can use the following command in the command line interface to specify a blank node selector for the openshift-storage namespace (create openshift-storage namespace in this case): Taint a node as infra to ensure only Red Hat OpenShift Data Foundation resources are scheduled on that node. This helps you save on subscription costs. For more information, see How to use dedicated worker nodes for Red Hat OpenShift Data Foundation chapter in the Managing and Allocating Storage Resources guide. Procedure Log in to the OpenShift Web Console. Click Operators OperatorHub . Scroll or type OpenShift Data Foundation into the Filter by keyword box to find the OpenShift Data Foundation Operator. Click Install . Set the following options on the Install Operator page: Update Channel as stable-4.9 . Installation Mode as A specific namespace on the cluster . Installed Namespace as Operator recommended namespace openshift-storage . If Namespace openshift-storage does not exist, it is created during the operator installation. Select Approval Strategy as Automatic or Manual . If you select Automatic updates, then the Operator Lifecycle Manager (OLM) automatically upgrades the running instance of your Operator without any intervention. If you select Manual updates, then the OLM creates an update request. As a cluster administrator, you must then manually approve that update request to update the Operator to a newer version. Ensure that the Enable option is selected for the Console plugin . Click Install . Note We recommend using all default settings. Changing it may result in unexpected behavior. Alter only if you are aware of its result. Verification steps Verify that the OpenShift Data Foundation Operator shows a green tick indicating successful installation. After the operator is successfully installed, a pop-up with a message, Web console update is available appears on the user interface. Click Refresh web console from this pop-up for the console changes to reflect. In the Web Console, navigate to Operators and verify if OpenShift Data Foundation is available. Important In case the console plugin option was not automatically enabled after you installed the OpenShift Data Foundation Operator, you need to enable it. For more information on how to enable the console plugin, see Enabling the Red Hat OpenShift Data Foundation console plugin . 2.3. Creating Multus networks [Technology Preview] OpenShift Container Platform uses the Multus CNI plug-in to allow chaining of CNI plug-ins. During cluster installation, you can configure your default pod network. The default network handles all ordinary network traffic for the cluster. You can define an additional network based on the available CNI plug-ins and attach one or more of these networks to your pods. To attach additional network interfaces to a pod, you must create configurations that define how the interfaces are attached. You specify each interface by using a NetworkAttachmentDefinition custom resource (CR). A CNI configuration inside each of the NetworkAttachmentDefinition defines how that interface is created. OpenShift Data Foundation uses the CNI plug-in called macvlan. Creating a macvlan-based additional network allows pods on a host to communicate with other hosts and pods on those hosts by using a physical network interface. Each pod that is attached to a macvlan-based additional network is provided a unique MAC address. Important Multus support is a Technology Preview feature that is only supported and has been tested on bare metal and VMWare deployments. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process. For more information, see Technology Preview Features Support Scope . 2.3.1. Creating network attachment definitions To utilize Multus, an already working cluster with the correct networking configuration is required, see Recommended network configuration and requirements for a Multus configuration . The newly created NetworkAttachmentDefinition (NAD) can be selected during the Storage Cluster installation. This is the reason they must be created before the Storage Cluster. As detailed in the Planning Guide, the Multus networks you create depend on the number of available network interfaces you have for OpenShift Data Foundation traffic. It is possible to separate all of the storage traffic onto one of two interfaces (one interface used for default OpenShift SDN) or to further segregate storage traffic into client storage traffic (public) and storage replication traffic (private or cluster). The following is an example NetworkAttachmentDefinition for all storage traffic, public and cluster, on the same interface. It requires one additional interface on all schedulable nodes (OpenShift default SDN on separate network interface). Note All network interface names must be the same on all the nodes attached to the Multus network (that is, ens2 for ocs-public-cluster ). The following is an example NetworkAttachmentDefinition for storage traffic on separate Multus networks, public, for client storage traffic, and cluster, for replication traffic. It requires two additional interfaces on OpenShift nodes hosting OSD pods and one additional interface on all other schedulable nodes (OpenShift default SDN on separate network interface). Example NetworkAttachmentDefinition : Note All network interface names must be the same on all the nodes attached to the Multus networks (that is, ens2 for ocs-public , and ens3 for ocs-cluster ). 2.4. Creating OpenShift Data Foundation cluster on bare metal Prerequisites Ensure that all the requirements in the Requirements for installing OpenShift Data Foundation using local storage devices section are met. If you want to use the technology preview feature of multus support, before deployment you must create network attachment definitions (NADs) that is later attached to the cluster. For more information, see Multi network plug-in (Multus) support and Creating network attachment definitions . Procedure In the OpenShift Web Console, click Operators Installed Operators to view all the installed operators. Ensure that the Project selected is openshift-storage . Click on the OpenShift Data Foundation operator and then click Create StorageSystem . In the Backing storage page, perform the following: Select the Create a new StorageClass using the local storage devices option. Expand Advanced and select Full Deployment for the Deployment type option. Click . Important You are prompted to install the Local Storage Operator if it is not already installed. Click Install , and follow the procedure as described in Installing Local Storage Operator . In the Create local volume set page, provide the following information: Enter a name for the LocalVolumeSet and the StorageClass . By default, the local volume set name appears for the storage class name. You can change the name. Choose one of the following: Disks on all nodes Uses the available disks that match the selected filters on all the nodes. Disks on selected nodes Uses the available disks that match the selected filters only on the selected nodes. Important The flexible scaling feature is enabled only when the storage cluster that you created with three or more nodes are spread across fewer than the minimum requirement of three availability zones. This feature is available only in new deployments of Red Hat OpenShift Data Foundation versions 4.7 and later. Storage clusters upgraded from a version to version 4.7 or later do not support flexible scaling. For more information, see Flexible scaling of OpenShift Data Foundation cluster in the New features section of Release Notes . If the nodes selected do not match the OpenShift Data Foundation cluster requirement of an aggregated 30 CPUs and 72 GiB of RAM, a minimal cluster is deployed. For minimum starting node requirements, see the Resource requirements section in the Planning guide. From the available list of Disk Type , select SSD/NVMe . Expand the Advanced section and set the following options: Volume Mode Block is selected by default. Device Type Select one or more device type from the dropdown list. Disk Size Set a minimum size of 100GB for the device and maximum available size of the device that needs to be included. Maximum Disks Limit This indicates the maximum number of PVs that can be created on a node. If this field is left empty, then PVs are created for all the available disks on the matching nodes. Click . A pop-up to confirm the creation of LocalVolumeSet is displayed. Click Yes to continue. In the Capacity and nodes page, configure the following: Available raw capacity is populated with the capacity value based on all the attached disks associated with the storage class. This takes some time to show up. The Selected nodes list shows the nodes based on the storage class. Click . Optional: In the Security and network page, configure the following based on your requirement: To enable encryption, select Enable data encryption for block and file storage . Choose one or both of the following Encryption level : Cluster-wide encryption Encrypts the entire cluster (block and file). StorageClass encryption Creates encrypted persistent volume (block only) using encryption enabled storage class. Select Connect to an external key management service checkbox. This is optional for cluster-wide encryption. Key Management Service Provider is set to Vault by default. Enter Vault Service Name , host Address of Vault server ('https:// <hostname or ip> ''), Port number and Token . Expand Advanced Settings to enter additional settings and certificate details based on your Vault configuration: Enter the Key Value secret path in Backend Path that is dedicated and unique to OpenShift Data Foundation. Optional: Enter TLS Server Name and Vault Enterprise Namespace . Upload the respective PEM encoded certificate file to provide CA Certificate , Client Certificate and Client Private Key . Click Save . Choose one of the following: Default (SDN) If you are using a single network. Custom (Multus) If you are using multiple network interfaces. Select a Public Network Interface from the dropdown. Select a Cluster Network Interface from the dropdown. Note If you are using only one additional network interface, select the single NetworkAttachementDefinition , that is, ocs-public-cluster for the Public Network Interface and leave the Cluster Network Interface blank. Click . In the Review and create page, review the configuration details. To modify any configuration settings, click Back to go back to the configuration page. Click Create StorageSystem . Verification steps To verify the final Status of the installed storage cluster: In the OpenShift Web Console, navigate to Installed Operators OpenShift Data Foundation Storage System ocs-storagecluster-storagesystem Resources . Verify that Status of StorageCluster is Ready and has a green tick mark to it. To verify if flexible scaling is enabled on your storage cluster, perform the following steps (for arbiter mode, flexible scaling is disabled): In the OpenShift Web Console, navigate to Installed Operators OpenShift Data Foundation Storage System ocs-storagecluster-storagesystem Resources ocs-storagecluster . In the YAML tab, search for the keys flexibleScaling in spec section and failureDomain in status section. If flexible scaling is true and failureDomain is set to host, flexible scaling feature is enabled. To verify that all the components for OpenShift Data Foundation are successfully installed, see Verifying your OpenShift Data Foundation installation . To verify the multi networking (Multus), see Verifying the Multus networking . Additional resources To expand the capacity of the initial cluster, see the Scaling Storage guide. 2.5. Verifying OpenShift Data Foundation deployment To verify that OpenShift Data Foundation is deployed correctly: Verify the state of the pods . Verify that the OpenShift Data Foundation cluster is healthy . Verify that the Multicloud Object Gateway is healthy . Verify that the OpenShift Data Foundation specific storage classes exist . Verifying the Multus networking . 2.5.1. Verifying the state of the pods Procedure Click Workloads Pods from the OpenShift Web Console. Select openshift-storage from the Project drop-down list. Note If the Show default projects option is disabled, use the toggle button to list all the default projects. For more information about the expected number of pods for each component and how it varies depending on the number of nodes, see Table 2.1, "Pods corresponding to OpenShift Data Foundation cluster" . Click the Running and Completed tabs to verify that the following pods are in Running and Completed state: Table 2.1. Pods corresponding to OpenShift Data Foundation cluster Component Corresponding pods OpenShift Data Foundation Operator ocs-operator-* (1 pod on any worker node) ocs-metrics-exporter-* (1 pod on any worker node) odf-operator-controller-manager-* (1 pod on any worker node) odf-console-* (1 pod on any worker node) Rook-ceph Operator rook-ceph-operator-* (1 pod on any worker node) Multicloud Object Gateway noobaa-operator-* (1 pod on any worker node) noobaa-core-* (1 pod on any storage node) noobaa-db-pg-* (1 pod on any storage node) noobaa-endpoint-* (1 pod on any storage node) MON rook-ceph-mon-* (3 pods distributed across storage nodes) MGR rook-ceph-mgr-* (1 pod on any storage node) MDS rook-ceph-mds-ocs-storagecluster-cephfilesystem-* (2 pods distributed across storage nodes) RGW rook-ceph-rgw-ocs-storagecluster-cephobjectstore-* (1 pod on any storage node) CSI cephfs csi-cephfsplugin-* (1 pod on each worker node) csi-cephfsplugin-provisioner-* (2 pods distributed across worker nodes) rbd csi-rbdplugin-* (1 pod on each worker node) csi-rbdplugin-provisioner-* (2 pods distributed across worker nodes) rook-ceph-crashcollector rook-ceph-crashcollector-* (1 pod on each storage node) OSD rook-ceph-osd-* (1 pod for each device) rook-ceph-osd-prepare-ocs-deviceset-* (1 pod for each device) 2.5.2. Verifying the OpenShift Data Foundation cluster is healthy Procedure In the OpenShift Web Console, click Storage OpenShift Data Foundation . In the Status card of the Overview tab, click Storage System and then click the storage system link from the pop up that appears. In the Status card of the Block and File tab, verify that Storage Cluster has a green tick. In the Details card, verify that the cluster information is displayed. For more information on the health of the OpenShift Data Foundation cluster using the Block and File dashboard, see Monitoring OpenShift Data Foundation . 2.5.3. Verifying the Multicloud Object Gateway is healthy Procedure In the OpenShift Web Console, click Storage OpenShift Data Foundation . In the Status card of the Overview tab, click Storage System and then click the storage system link from the pop up that appears. In the Status card of the Object tab, verify that both Object Service and Data Resiliency have a green tick. In the Details card, verify that the MCG information is displayed. For more information on the health of the OpenShift Data Foundation cluster using the object service dashboard, see Monitoring OpenShift Data Foundation . 2.5.4. Verifying that the OpenShift Data Foundation specific storage classes exist Procedure Click Storage Storage Classes from the left pane of the OpenShift Web Console. Verify that the following storage classes are created with the OpenShift Data Foundation cluster creation: ocs-storagecluster-ceph-rbd ocs-storagecluster-cephfs openshift-storage.noobaa.io ocs-storagecluster-ceph-rgw 2.5.5. Verifying the Multus networking To determine if Multus is working in your cluster, verify the Multus networking. Procedure Based on your Network configuration choices, the OpenShift Data Foundation operator will do one of the following: If only a single NetworkAttachmentDefinition (for example, ocs-public-cluster ) was selected for the Public Network Interface, then the traffic between the application pods and the OpenShift Data Foundation cluster will happen on this network. Additionally the cluster will be self configured to also use this network for the replication and rebalancing traffic between OSDs. If both NetworkAttachmentDefinitions (for example, ocs-public and ocs-cluster ) were selected for the Public Network Interface and the Cluster Network Interface respectively during the Storage Cluster installation, then client storage traffic will be on the public network and cluster network for the replication and rebalancing traffic between OSDs. To verify the network configuration is correct, complete the following: In the OpenShift console, navigate to Installed Operators OpenShift Data Foundation Storage System ocs-storagecluster-storagesystem Resources ocs-storagecluster . In the YAML tab, search for network in the spec section and ensure the configuration is correct for your network interface choices. This example is for separating the client storage traffic from the storage replication traffic. Sample output: To verify the network configuration is correct using the command line interface, run the following commands: Sample output: Confirm the OSD pods are using correct network In the openshift-storage namespace use one of the OSD pods to verify the pod has connectivity to the correct networks. This example is for separating the client storage traffic from the storage replication traffic. Note Only the OSD pods will connect to both Multus public and cluster networks if both are created. All other OCS pods will connect to the Multus public network. Sample output: To confirm the OSD pods are using correct network using the command line interface, run the following command (requires the jq utility): Sample output:

Commands:
oc annotate namespace openshift-storage openshift.io/node-selector=
apiVersion: "k8s.cni.cncf.io/v1" kind: NetworkAttachmentDefinition metadata: name: ocs-public-cluster namespace: openshift-storage spec: config: '{ "cniVersion": "0.3.1", "type": "macvlan", "master": "ens2", "mode": "bridge", "ipam": { "type": "whereabouts", "range": "192.168.1.0/24" } }'
apiVersion: "k8s.cni.cncf.io/v1" kind: NetworkAttachmentDefinition metadata: name: ocs-public namespace: openshift-storage spec: config: '{ "cniVersion": "0.3.1", "type": "macvlan", "master": "ens2", "mode": "bridge", "ipam": { "type": "whereabouts", "range": "192.168.1.0/24" } }'
apiVersion: "k8s.cni.cncf.io/v1" kind: NetworkAttachmentDefinition metadata: name: ocs-cluster namespace: openshift-storage spec: config: '{ "cniVersion": "0.3.1", "type": "macvlan", "master": "ens3", "mode": "bridge", "ipam": { "type": "whereabouts", "range": "192.168.2.0/24" } }'
spec: flexibleScaling: true [...] status: failureDomain: host
[..] spec: [..] network: ipFamily: IPv4 provider: multus selectors: cluster: openshift-storage/ocs-cluster public: openshift-storage/ocs-public [..]
oc get storagecluster ocs-storagecluster -n openshift-storage -o=jsonpath='{.spec.network}{"\n"}'
{"ipFamily":"IPv4","provider":"multus","selectors":{"cluster":"openshift-storage/ocs-cluster","public":"openshift-storage/ocs-public"}}
oc get -n openshift-storage USD(oc get pods -n openshift-storage -o name -l app=rook-ceph-osd | grep 'osd-0') -o=jsonpath='{.metadata.annotations.k8s\.v1\.cni\.cncf\.io/network-status}{"\n"}'
[{ "name": "openshift-sdn", "interface": "eth0", "ips": [ "10.129.2.30" ], "default": true, "dns": {} },{ "name": "openshift-storage/ocs-cluster", "interface": "net1", "ips": [ "192.168.2.1" ], "mac": "e2:04:c6:81:52:f1", "dns": {} },{ "name": "openshift-storage/ocs-public", "interface": "net2", "ips": [ "192.168.1.1" ], "mac": "ee:a0:b6:a4:07:94", "dns": {} }]
oc get -n openshift-storage USD(oc get pods -n openshift-storage -o name -l app=rook-ceph-osd | grep 'osd-0') -o=jsonpath='{.metadata.annotations.k8s\.v1\.cni\.cncf\.io/network-status}{"\n"}' | jq -r '.[].name'
openshift-sdn openshift-storage/ocs-cluster openshift-storage/ocs-public