Setting up the Rook Ceph storage cluster

EDA uses Rook Ceph as a secure, distributed, and redundant data store for all the data it stores. Using Ceph guarantees redundancy and high availability of all data by providing multiple copies of all data. The following steps guide you through the configuration and deployment of Rook Ceph.

Add the Rook Ceph Helm chart.

helm repo add rook-release https://charts.rook.io/release

Using the rook-ceph-operator-values.yaml file that edaadm generated based on the configuration, deploy the Rook Ceph Operator.

helm install --create-namespace \ 
  --namespace rook-ceph \ 
  -f path/to/rook-ceph-operator-values.yaml \ 
  rook-ceph rook-release/rook-ceph

Using the rook-ceph-cluster-values.yaml file that the edaadm tool generated, deploy the Rook Ceph Cluster.
```
helm install \ 
  --namespace rook-ceph \ 
  --set operatorNamespace=rook-ceph \ 
  -f path/to/rook-ceph-cluster-values.yaml \ 
  rook-ceph-cluster rook-release/rook-ceph-cluster 
```
The output from this command can report missing CRDs; wait until the Rook Ceph Operator is running in the Kubernetes cluster.

Using kubectl commands, verify that the operator is deployed and the necessary pods are deployed before installing the EDA application.

This example is for a six-node cluster, with three storage nodes.

$ kubectl -n rook-ceph get pods 
NAME                                               READY   STATUS      RESTARTS        AGE
csi-cephfsplugin-22rmj                             2/2     Running     1 (6m32s ago)   7m6s
csi-cephfsplugin-25p9d                             2/2     Running     1 (6m30s ago)   7m6s
csi-cephfsplugin-2gr8v                             2/2     Running     4 (5m16s ago)   7m6s
csi-cephfsplugin-48cwk                             2/2     Running     1 (6m30s ago)   7m6s
csi-cephfsplugin-fknch                             2/2     Running     2 (5m32s ago)   7m6s
csi-cephfsplugin-provisioner-67c8454ddd-mpq4w      5/5     Running     1 (6m1s ago)    7m6s
csi-cephfsplugin-provisioner-67c8454ddd-qmdrq      5/5     Running     1 (6m18s ago)   7m6s
csi-cephfsplugin-vfxnf                             2/2     Running     1 (6m32s ago)   7m6s
rook-ceph-mds-ceph-filesystem-a-7c54cdf5bc-lmf6n   1/1     Running     0               2m40s
rook-ceph-mds-ceph-filesystem-b-6dc794b9f4-2lc64   1/1     Running     0               2m37s
rook-ceph-mgr-a-55b449c844-wpps8                   2/2     Running     0               4m30s
rook-ceph-mgr-b-5f97fd5746-fzngx                   2/2     Running     0               4m30s
rook-ceph-mon-a-76fcb96c4c-vscnc                   1/1     Running     0               5m53s
rook-ceph-mon-b-68bf5974bb-p2vnj                   1/1     Running     0               4m57s
rook-ceph-mon-c-6d7c64dcb6-phs99                   1/1     Running     0               4m47s
rook-ceph-operator-5f4c4bff8d-2fsq2                1/1     Running     0               7m54s
rook-ceph-osd-0-bf89f779-zh4kd                     1/1     Running     0               3m49s
rook-ceph-osd-1-64dcd64c5f-7xcbm                   1/1     Running     0               3m49s
rook-ceph-osd-2-54ddd95489-5qkdt                   1/1     Running     0               3m49s
rook-ceph-osd-3-56cbd54bd6-7mt8w                   1/1     Running     0               3m39s
rook-ceph-osd-4-567dcff476-wljll                   1/1     Running     0               2m56s
rook-ceph-osd-5-6f69c998b6-2l5wp                   1/1     Running     0               2m54s
rook-ceph-osd-prepare-eda-dev-node01-7rfkn         0/1     Completed   0               4m8s
rook-ceph-osd-prepare-eda-dev-node02-rqdkx         0/1     Completed   0               4m8s
rook-ceph-osd-prepare-eda-dev-node03-xtznb         0/1     Completed   0               4m8s
rook-ceph-osd-prepare-eda-dev-node04-db4v8         0/1     Completed   0               4m7s
rook-ceph-osd-prepare-eda-dev-node05-29wwm         0/1     Completed   0               4m7s
rook-ceph-osd-prepare-eda-dev-node06-zxp2x         0/1     Completed   0               4m7s
rook-ceph-tools-b9d78b5d4-8r62p                    1/1     Running     0               7m6s

Note: Some of the pods may restart as they initiate Ceph. This behavior is expected.