Project: Rook (Runtime / Cloud Native Storage)
File: ceph-cluster-chart.gotmpl.md

title: Ceph Cluster Helm Chart {{ template "generatedDocsWarning" . }} Creates Rook resources to configure a cluster using the package manager. This chart is a simple packaging of templates that will optionally create Rook resources such as: CephCluster, CephFilesystem, and CephObjectStore CRs Storage classes to expose Ceph RBD volumes, CephFS volumes, and RGW buckets Ingress for external access to the dashboard Toolbox Kubernetes 1.22+ Helm 3.x Install the The `helm install` command deploys rook on the Kubernetes cluster in the default configuration. The section lists the parameters that can be configured during installation. It is recommended that the rook operator be installed into the `rook-ceph` namespace. The clusters can be installed into the same namespace as the operator or a separate namespace. Rook currently publishes builds of this chart to the `release` and `master` channels. Before installing, review the values.yaml to confirm if the default settings need to be updated. If the operator was installed in a namespace other than `rook-ceph`, the namespace must be set in the `operatorNamespace` variable. Set the desired settings in the `cephClusterSpec`. The are only an example and not likely to apply to your cluster. The `monitoring` section should be removed from the `cephClusterSpec`, as it is specified separately in the helm settings. The default values for `cephBlockPools`, `cephFileSystems`, and `CephObjectStores` will create one of each, and their corresponding storage classes. All Ceph components now have default values for the pod resources. The resources may need to be adjusted in production clusters depending on the load. The resources can also be disabled if Ceph should not be limited (e.g. test clusters). The release channel is the most recent release of Rook that is considered stable for the community. The example install assumes you have first installed the and created your customized values.yaml. ```console helm repo add rook-release https://charts.rook.io/release helm install --create-namespace --namespace rook-ceph rook-ceph-cluster \ --set operatorNamespace=rook-ceph rook-release/rook-ceph-cluster -f values.yaml ``` !!! Note --namespace specifies the cephcluster namespace, which may be different from the rook operator namespace. The following table lists the configurable parameters of the rook-operator chart and their default values. {{ template "chart.valuesTable" . }} The `CephCluster` CRD takes its spec from `cephClusterSpec.*`. This is not an exhaustive list of parameters. For the full list, see the topic. The cluster spec example is for a converged cluster where all the Ceph daemons are running locally, as in the host-based example (cluster.yaml). For a different configuration such as a PVC-based cluster (cluster-on-pvc.yaml), external cluster (cluster-external.yaml), or stretch cluster (cluster-stretched.yaml), replace this entire `cephClusterSpec` with the specs from those examples. The `cephBlockPools` array in the values file will define a list of CephBlockPool as described in the table below. | Parameter | Description | Default | | | -- | - | | `name` | The name of the CephBlockPool | `ceph-blockpool` | | `spec` | The CephBlockPool spec, see the documentation. | `{}` | | `storageClass.enabled` | Whether a storage class is deployed alongside the CephBlockPool | `true` | | `storageClass.isDefault` | Whether the storage class will be the default storage class for PVCs. See for details. | `true` | | `storageClass.name` | The name of the storage class | `ceph-block` | | `storageClass.parameters` | See documentation or the helm values.yaml for suitable values | see values.yaml | |

| The default to apply to PVCs created with this storage class. | `Delete` | | `storageClass.allowVolumeExpansion` | Whether is allowed by default. | `true` | | `storageClass.mountOptions` | Specifies the mount options for storageClass | `[]` | | `storageClass.allowedTopologies` | Specifies the for storageClass | `[]` | The `cephFileSystems` array in the values file will define a list of CephFileSystem as described in the table below. | Parameter | Description | Default | | | -- | - | | `name` | The name of the CephFileSystem | `ceph-filesystem` | | `spec` | The CephFileSystem spec, see the documentation. | see values.yaml | | `storageClass.enabled` | Whether a storage class is deployed alongside the CephFileSystem | `true` | | `storageClass.name` | The name of the storage class | `ceph-filesystem` | | `storageClass.pool` | The name of , without the filesystem name prefix | `data0` | | `storageClass.parameters` | See documentation or the helm values.yaml for suitable values | see values.yaml | | `storageClass.reclaimPolicy` | The default to apply to PVCs created with this storage class. | `Delete` | | `storageClass.mountOptions` | Specifies the mount options for storageClass | `[]` | The `cephObjectStores` array in the values file will define a list of CephObjectStore as described in the table below. | Parameter | Description | Default | | | -- | - | | `name` | The name of the CephObjectStore | `ceph-objectstore` | | `spec` | The CephObjectStore spec, see the documentation. | see values.yaml | | `storageClass.enabled` | Whether a storage class is deployed alongside the CephObjectStore | `true` | | `storageClass.name` | The name of the storage class | `ceph-bucket` | | `storageClass.parameters` | See documentation or the helm values.yaml for suitable values | see values.yaml | | `storageClass.reclaimPolicy` | The default to apply to PVCs created with this storage class. | `Delete` | | `ingress.enabled` | Enable an ingress for the object store | `false` | | `ingress.annotations` | Ingress annotations | `{}` | | `ingress.host.name` | Ingress hostname | `""` | | `ingress.host.path` | Ingress path prefix | `/` | | `ingress.tls` | Ingress tls | `/` | | `ingress.ingressClassName` | Ingress tls | `""` | If you have an existing CephCluster CR that was created without the helm chart and you want the helm chart to start managing the cluster: Extract the `spec` section of your existing CephCluster CR and copy to the `cephClusterSpec` section in `values.yaml`. Add the following annotations and label to your existing CephCluster CR: ```yaml annotations: meta.helm.sh/release-name: rook-ceph-cluster meta.helm.sh/release-namespace: rook-ceph labels: app.kubernetes.io/managed-by: Helm ``` Run the `helm install` command in the to create the chart. In the future when updates to the cluster are needed, ensure the values.yaml always contains the desired CephCluster spec. To deploy from a local build from your development environment: ```console cd deploy/charts/rook-ceph-cluster helm install --create-namespace --namespace rook-ceph rook-ceph-cluster -f values.yaml . ``` To see the currently installed Rook chart: ```console helm ls --namespace rook-ceph ``` To uninstall/delete the `rook-ceph-cluster` chart: ```console helm delete --namespace rook-ceph rook-ceph-cluster ``` The command removes all the Kubernetes components associated with the chart and deletes the release. Removing the cluster chart does not remove the Rook operator. In addition, all data on hosts in the Rook data directory (`/var/lib/rook` by default) and on OSD raw devices is kept. To reuse disks, you will have to wipe them before recreating the cluster. See the for more information.