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Update usage.md #722

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Update usage.md
ShuheiYsk Aug 19, 2019
33b96b1
Update usage.md , add storage class options.
ShuheiYsk Aug 19, 2019
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51 changes: 43 additions & 8 deletions docs/usage.md
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Original file line number Diff line number Diff line change
Expand Up @@ -283,16 +283,47 @@ https://kubernetes.io/docs/tasks/configure-pod-container/configure-persistent-vo
To get started, in an OpenShift environment, we need to relax the security of your cluster, so pods are allowed to
use the **hostPath** volume plugin without granting everyone access to the privileged **SCC**:

1. Edit the restricted SCC:
1. Create new SCC to allow hostpath:
```
$ oc edit scc restricted
$ oc create -f - << EOF
---
allowHostDirVolumePlugin: true
allowHostIPC: false
allowHostNetwork: false
allowHostPID: false
allowHostPorts: false
allowPrivilegeEscalation: true
allowPrivilegedContainer: false
allowedCapabilities: null
apiVersion: security.openshift.io/v1
defaultAddCapabilities: null
fsGroup:
type: MustRunAs
groups:
- system:authenticated
kind: SecurityContextConstraints
metadata:
name: hostpath
priority: null
readOnlyRootFilesystem: false
requiredDropCapabilities:
- KILL
- MKNOD
- SETUID
- SETGID
runAsUser:
type: MustRunAsRange
seLinuxContext:
type: MustRunAs
supplementalGroups:
type: RunAsAny
users: []
volumes:
- hostPath
EOF
```

2. Add `allowHostDirVolumePlugin: true`

3. Save the changes

4. Restart node service (master node).
2. Restart node service (master node).
```
$ sudo systemctl restart origin-node.service
```
Expand Down Expand Up @@ -326,7 +357,7 @@ EOF
| StorageClass Options | Type | Parameters | Example |
|----------------------|---------|--------------------------------------------|----------------------------------|
| size | integer | - | size: "10" |
| provisioning | String | thin, thick | provisioning: "thin" |
| provisioning | String | thin, full | provisioning: "thin" |
| flash-cache | String | true, false | flash-cache: "true" |
| compression | boolean | true, false | compression: "true" |
| MountConflictDelay | integer | - | MountConflictDelay: "30" |
Expand All @@ -337,6 +368,10 @@ EOF
| retentionHours | integer | option of virtualCopyOf | retentionHours: "10" |
| accessModes | String | ReadWriteOnce | accessModes: <br> &nbsp;&nbsp; - ReadWriteOnce |
| replicationGroup | String | 3PAR RCG name | replicationGroup: "Test-RCG" |
| cpg | String | 3PAR CPG name | cpg: 'SSD_r6' |
| snapcpg | String | 3PAR snapCPG name | cpg: 'FC_r6' |
| backend | String | 3PAR name which defined in hpe.conf | bankend: '3PAR1' |
| fsOwner | String | User ID and Group ID | fsOwner: '1001:1001' |


### Persistent Volume Claim Example<a name="pvc"></a>
Expand Down