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WekaFS Container Storage Interface (CSI) Plugin

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# CSI WekaFS Driver
Helm chart for Deployment of WekaIO Container Storage Interface (CSI) plugin for WekaFS - the world fastest filesystem

![Version: 2.8.9](https://img.shields.io/badge/Version-2.8.9-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: v2.8.9](https://img.shields.io/badge/AppVersion-v2.8.9-informational?style=flat-square)
[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
[![Artifact HUB](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/csi-wekafs)](https://artifacthub.io/packages/search?repo=csi-wekafs)

## Homepage
https://github.com/weka/csi-wekafs

## Maintainers

| Name | Email | Url |
| ---- | ------ | --- |
| WekaIO, Inc. | <csi@weka.io> | <https://weka.io> |

## Pre-requisite
- Kubernetes cluster of version 1.20 or later is recommended. Minimum version is 1.17
- Access to terminal with `kubectl` installed
- Weka system pre-configured and Weka client installed and registered in cluster for each Kubernetes node
- Starting with version 2.6.0 of WEKA CSI Plugin, both AMD64 and ARM64 platforms are supported.
  > **NOTE**: For more information on WEKA client software support state of ARM64, please refer to the [WEKA documentation revision history](https://docs.weka.io/readme/documentation-revision-history).
  >
  > On platforms not currently supported by WEKA software, NFS failback mode can be used. For additional information on NFS transport configuration, please refer to the [NFS documentation](docs/NFS.md)

## Deployment
- [Helm public repo](https://artifacthub.io/packages/helm/csi-wekafs/csi-wekafsplugin) (recommended)
- [Helm-based local deployment](charts/csi-wekafsplugin/LOCAL.md)

## Usage
- [Deploy an Example application](docs/usage.md)
- [SELinux Support & Installation Notes](selinux/README.md)
- [Using Weka CSI Plugin with NFS transport](docs/NFS.md)

## Additional Documentation
- [Official Weka CSI Plugin documentation](https://docs.weka.io/appendices/weka-csi-plugin)

## Building the binaries
If you want to build the driver yourself, you can do so with the following command from the root directory:

```console
make build
```

## Values

| Key | Type | Default | Description |
|-----|------|---------|-------------|
| dynamicProvisionPath | string | `"csi-volumes"` | Directory in root of file system where dynamic volumes are provisioned |
| csiDriverName | string | `"csi.weka.io"` | Name of the driver (and provisioner) |
| csiDriverVersion | string | `"2.8.9"` | CSI driver version |
| images.livenessprobesidecar | string | `"registry.k8s.io/sig-storage/livenessprobe:v2.18.0"` | CSI liveness probe sidecar image URL |
| images.attachersidecar | string | `"registry.k8s.io/sig-storage/csi-attacher:v4.11.0"` | CSI attacher sidecar image URL |
| images.provisionersidecar | string | `"registry.k8s.io/sig-storage/csi-provisioner:v6.2.0"` | CSI provisioner sidecar image URL |
| images.registrarsidecar | string | `"registry.k8s.io/sig-storage/csi-node-driver-registrar:v2.16.0"` | CSI registrar sidercar |
| images.resizersidecar | string | `"registry.k8s.io/sig-storage/csi-resizer:v2.1.0"` | CSI resizer sidecar image URL |
| images.snapshottersidecar | string | `"registry.k8s.io/sig-storage/csi-snapshotter:v8.5.0"` | CSI snapshotter sidecar image URL |
| images.csidriver | string | `"quay.io/weka.io/csi-wekafs"` | CSI driver main image URL |
| images.csidriverTag | string | `"2.8.9"` | CSI driver tag |
| imagePullSecret | string | `""` | image pull secret required for image download. Must have permissions to access all images above.    Should be used in case of private registry that requires authentication |
| globalPluginTolerations | list | `[{"effect":"NoSchedule","key":"node-role.kubernetes.io/master","operator":"Exists"}]` | Tolerations for all CSI driver components |
| controllerPluginTolerations | list | `[{"effect":"NoSchedule","key":"node-role.kubernetes.io/master","operator":"Exists"}]` | Tolerations for CSI controller component only (by default same as global) |
| nodePluginTolerations | list | `[{"effect":"NoSchedule","key":"node-role.kubernetes.io/master","operator":"Exists"}]` | Tolerations for CSI node component only (by default same as global) |
| nodeSelector | object | `{}` | Optional nodeSelector for CSI plugin deployment on certain Kubernetes nodes only    This nodeselector will be applied to all CSI plugin components |
| affinity | object | `{}` | Optional affinity for CSI plugin deployment    This affinity will be applied to all CSI plugin components |
| machineConfigLabels | list | `["worker","master"]` | Optional setting for OCP platform only, which machineconfig pools to apply the Weka SELinux policy on    NOTE: by default, the policy will be installed both on workers and control plane nodes |
| controller.replicas | int | `2` | Controller number of replicas |
| controller.healthPort | int | `8081` | Health probe port for controller pods |
| controller.maxConcurrentRequests | int | `5` | Maximum concurrent requests from sidecars (global) |
| controller.concurrency | object | `{"createSnapshot":5,"createVolume":5,"deleteSnapshot":5,"deleteVolume":5,"expandVolume":5}` | maximum concurrent operations per operation type |
| controller.grpcRequestTimeoutSeconds | int | `30` | Return GRPC Unavailable if request waits in queue for that long time (seconds) |
| controller.configureProvisionerLeaderElection | bool | `true` | Configure provisioner sidecar for leader election |
| controller.configureResizerLeaderElection | bool | `true` | Configure resizer sidecar for leader election |
| controller.configureSnapshotterLeaderElection | bool | `true` | Configure snapshotter sidecar for leader election |
| controller.configureAttacherLeaderElection | bool | `true` | Configure attacher sidecar for leader election |
| controller.nodeSelector | object | `{}` | optional nodeSelector for controller components only |
| controller.affinity | object | `{}` | optional affinity for controller components only |
| controller.labels | object | `{}` | optional labels to add to controller deployment |
| controller.podLabels | object | `{}` | optional labels to add to controller pods |
| controller.terminationGracePeriodSeconds | int | `10` | termination grace period for controller pods |
| controller.resources | object | `{"csiAttacher":{"limits":{"cpu":1,"memory":"1Gi"},"requests":{"cpu":"4m","memory":"48Mi"}},"csiProvisioner":{"limits":{"cpu":1,"memory":"3Gi"},"requests":{"cpu":"128m","memory":"128Mi"}},"csiResizer":{"limits":{"cpu":1,"memory":"2Gi"},"requests":{"cpu":"4m","memory":"48Mi"}},"csiSnapshotter":{"limits":{"cpu":1,"memory":"1Gi"},"requests":{"cpu":"4m","memory":"48Mi"}},"wekafs":{"limits":{"cpu":1,"memory":"3Gi"},"requests":{"cpu":"128m","memory":"128Mi"}}}` | resource requests and limits for controller containers |
| node.concurrency | object | `{"nodePublishVolume":5,"nodeUnpublishVolume":5}` | maximum concurrent operations per operation type (to avoid API starvation) |
| node.grpcRequestTimeoutSeconds | int | `30` | Return GRPC Unavailable if request waits in queue for that long time (seconds) |
| node.nodeSelector | object | `{}` | optional nodeSelector for node components only |
| node.affinity | object | `{}` | optional affinity for node components only |
| node.labels | object | `{}` | optional labels to add to node daemonset |
| node.podLabels | object | `{}` | optional labels to add to node pods |
| node.livenessProbeEnabled | bool | `true` | Enable liveness probe on node pods. Set to false to disable health checks for debugging pod restart issues |
| node.terminationGracePeriodSeconds | int | `10` | termination grace period for node pods |
| node.resources | object | `{"csiRegistrar":{"limits":{"cpu":1,"memory":"1Gi"},"requests":{"cpu":"8m","memory":"52Mi"}},"livenessProbe":{"limits":{"cpu":1,"memory":"1Gi"},"requests":{"cpu":"12m","memory":"44Mi"}},"wekafs":{"limits":{"cpu":1,"memory":"2Gi"},"requests":{"cpu":"128m","memory":"128Mi"}}}` | resource requests and limits for node containers |
| logLevel | int | `5` | Log level of CSI plugin |
| useJsonLogging | bool | `false` | Use JSON structured logging instead of human-readable logging format (for exporting logs to structured log parser) |
| legacyVolumeSecretName | string | `""` | for migration of pre-CSI 0.7.0 volumes only, default API secret. Must reside in same namespace as the plugin |
| priorityClassName | string | `""` | Optional CSI Plugin priorityClassName |
| selinuxSupport | string | `"off"` | Support SELinux labeling for Persistent Volumes, may be either `off`, `mixed`, `enforced` (default off)    In `enforced` mode, CSI node components will only start on nodes having a label `selinuxNodeLabel` below    In `mixed` mode, separate CSI node components will be installed on SELinux-enabled and regular hosts    In `off` mode, only non-SELinux-enabled node components will be run on hosts without label.    WARNING: if SELinux is not enabled, volume provisioning and publishing might fail!    NOTE: SELinux support is enabled automatically on clusters recognized as RedHat OpenShift Container Platform |
| selinuxNodeLabel | string | `"csi.weka.io/selinux_enabled"` | This label must be set to `"true"` on SELinux-enabled Kubernetes nodes,    e.g., to run the node server in secure mode on SELinux-enabled node, the node must have label    `csi.weka.io/selinux_enabled="true"` |
| selinuxOcpRetainMachineConfig | bool | `false` | If true, the SELinux policy machine configuration will not be removed when uninstalling the plugin.    This is useful for OpenShift Container Platform clusters, to not cause machine config pool update on plugin reinstall |
| kubeletPath | string | `"/var/lib/kubelet"` | kubelet path, in cases Kubernetes is installed not in default folder |
| metrics.enabled | bool | `true` | Enable Prometheus Metrics |
| metrics.controllerPort | int | `9090` | Metrics port for Controller Server |
| metrics.provisionerPort | int | `9091` | Provisioner metrics port |
| metrics.resizerPort | int | `9092` | Resizer metrics port |
| metrics.snapshotterPort | int | `9093` | Snapshotter metrics port |
| metrics.nodePort | int | `9094` | Metrics port for Node Serer |
| metrics.attacherPort | int | `9095` | Attacher metrics port |
| hostNetwork | bool | `false` | Set to true to use host networking. Will be always set to true when using NFS mount protocol |
| pluginConfig.fsGroupPolicy | string | `"File"` | WARNING: Changing this value might require uninstall and re-install of the plugin |
| pluginConfig.allowInsecureHttps | bool | `false` | Allow insecure HTTPS (skip TLS certificate verification) |
| pluginConfig.objectNaming.volumePrefix | string | `"csivol-"` | Prefix that will be added to names of Weka cluster filesystems / snapshots assocciated with CSI volume,    must not exceed 7 symbols. |
| pluginConfig.objectNaming.snapshotPrefix | string | `"csisnp-"` | Prefix that will be added to names of Weka cluster snapshots assocciated with CSI snapshot,    must not exceed 7 symbols. |
| pluginConfig.objectNaming.seedSnapshotPrefix | string | `"csisnp-seed-"` | Prefix that will be added to automatically created "seed" snapshot of empty filesytem,    must not exceed 12 symbols. |
| pluginConfig.allowedOperations.autoCreateFilesystems | bool | `true` | Allow automatic provisioning of CSI volumes based on distinct Weka filesystem |
| pluginConfig.allowedOperations.autoExpandFilesystems | bool | `true` | Allow automatic expansion of filesystem on which Weka snapshot-backed or directory-backed CSI volumes reside,    e.g. in case a required volume capacity exceeds the size of filesystem. |
| pluginConfig.allowedOperations.snapshotDirectoryVolumes | bool | `false` | Create snapshots of legacy (dir/v1) volumes. By default disabled.    Note: when enabled, for every legacy volume snapshot, a full filesystem snapshot will be created (wasteful) |
| pluginConfig.allowedOperations.snapshotVolumesWithoutQuotaEnforcement | bool | `false` | Allow creation of snapshot-backed volumes even on unsupported Weka cluster versions, off by default    Note: On versions of Weka < v4.2 snapshot-backed volume capacity cannot be enforced |
| pluginConfig.allowedOperations.enforceDirVolTotalCapacity | bool | `false` | Enforce total filesystem capacity for directory-backed volumes (prevents over-provisioning) |
| pluginConfig.allowedOperations.keepThinProvisioningRatioOnExpand | bool | `true` | When expanding a thinly-provisioned (tiered) filesystem, scale its thin min-SSD and max-SSD    by the same factor the total capacity grows, preserving the SSD ratios. When false, the thin    min-SSD and max-SSD are left unchanged and only total capacity (object tier) grows. Has no    effect on thick (non-tiered) filesystems. |
| pluginConfig.mutuallyExclusiveMountOptions[0] | string | `"readcache,writecache,coherent,forcedirect"` |  |
| pluginConfig.mutuallyExclusiveMountOptions[1] | string | `"sync,async"` |  |
| pluginConfig.mutuallyExclusiveMountOptions[2] | string | `"ro,rw"` |  |
| pluginConfig.encryption.allowEncryptionWithoutKms | bool | `false` | Allow encryption of Weka filesystems associated with CSI volumes without using external KMS server.    Should never be run in production, only for testing purposes |
| pluginConfig.mountProtocol.useNfs | bool | `false` | Use NFS transport for mounting Weka filesystems, off by default |
| pluginConfig.mountProtocol.allowNfsFailback | bool | `false` | Allow Failback to NFS transport if Weka client fails to mount filesystem using native protocol |
| pluginConfig.mountProtocol.interfaceGroupName | string | `""` | Specify name of NFS interface group to use for mounting Weka filesystems. If not set, first NFS interface group will be used |
| pluginConfig.mountProtocol.clientGroupName | string | `""` | Specify existing client group name for NFS configuration. If not set, "WekaCSIPluginClients" group will be created |
| pluginConfig.mountProtocol.nfsProtocolVersion | string | `"4.1"` | Specify NFS protocol version to use for mounting Weka filesystems. Default is "4.1", consult Weka documentation for supported versions |
| pluginConfig.mountProtocol.wekafsContainerName | string | `""` | NOTE: for multiple clusters setup, set specific container name rather than attempt to identify it automatically |
| pluginConfig.skipGarbageCollection | bool | `false` | Skip garbage collection of deleted directory-backed volume contents and only move them to trash. Default false |
| pluginConfig.waitForObjectDeletion | bool | `false` | Wait for WEKA filesystem / snapshot deletion before acknowledging the corresponding CSI volume deletion. Default false |
| pluginConfig.manageNodeTopologyLabels | bool | `true` | Allow CSI plugin to manage node topology labels. For Operator-managed clusters, this should be set to false. |
| pluginConfig.setOwnershipOnDynamicFilesystems | bool | `false` | NOTE: This functionality requires WEKA software of version 5.1.0 and above |
| pluginConfig.allowMountOptionOverrides | bool | `false` | Allow overrides of mount options via annotations on PVCs and Pods. Default is false. |

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Autogenerated from chart metadata using [helm-docs v1.14.2](https://github.com/norwoodj/helm-docs/releases/v1.14.2)

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