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Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
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Madhu Rajanna
2019-02-07 15:28:38 +05:30
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examples/README.md
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@ -1,10 +1,20 @@
## How to test RBD and CephFS plugins with Kubernetes 1.13
# How to test RBD and CephFS plugins with Kubernetes 1.13
Both `rbd` and `cephfs` directories contain `plugin-deploy.sh` and `plugin-teardown.sh` helper scripts. You can use those to help you deploy/tear down RBACs, sidecar containers and the plugin in one go. By default, they look for the YAML manifests in `../../deploy/{rbd,cephfs}/kubernetes`. You can override this path by running `$ ./plugin-deploy.sh /path/to/my/manifests`.
Both `rbd` and `cephfs` directories contain `plugin-deploy.sh` and
`plugin-teardown.sh` helper scripts. You can use those to help you
deploy/teardown RBACs, sidecar containers and the plugin in one go.
By default, they look for the YAML manifests in
`../../deploy/{rbd,cephfs}/kubernetes`.
You can override this path by running `$ ./plugin-deploy.sh /path/to/my/manifests`.
Once the plugin is successfuly deployed, you'll need to customize `storageclass.yaml` and `secret.yaml` manifests to reflect your Ceph cluster setup. Please consult the documentation for info about available parameters.
Once the plugin is successfuly deployed, you'll need to customize
`storageclass.yaml` and `secret.yaml` manifests to reflect your Ceph cluster
setup.
Please consult the documentation for info about available parameters.
After configuring the secrets, monitors, etc. you can deploy a
testing Pod mounting a RBD image / CephFS volume:
After configuring the secrets, monitors, etc. you can deploy a testing Pod mounting a RBD image / CephFS volume:
```bash
kubectl create -f secret.yaml
kubectl create -f storageclass.yaml
@ -13,16 +23,24 @@ kubectl create -f pod.yaml
```
Other helper scripts:
* `logs.sh` output of the plugin
* `exec-bash.sh` logs into the plugin's container and runs bash
## How to test RBD Snapshot feature
Before continuing, make sure you enabled the required feature gate `VolumeSnapshotDataSource=true` in your Kubernetes cluster.
Before continuing, make sure you enabled the required
feature gate `VolumeSnapshotDataSource=true` in your Kubernetes cluster.
In the `examples/rbd` directory you will find two files related to snapshots: [snapshotclass.yaml](./rbd/snapshotclass.yaml) and [snapshot.yaml](./rbd/snapshot.yaml).
In the `examples/rbd` directory you will find two files related to snapshots:
[snapshotclass.yaml](./rbd/snapshotclass.yaml) and
[snapshot.yaml](./rbd/snapshot.yaml).
Once you created your RBD volume, you'll need to customize at least `snapshotclass.yaml` and make sure the `monitors` and `pool` parameters match your Ceph cluster setup. If you followed the documentation to create the rbdplugin, you shouldn't have to edit any other file.
Once you created your RBD volume, you'll need to customize at least
`snapshotclass.yaml` and make sure the `monitors` and `pool` parameters match
your Ceph cluster setup.
If you followed the documentation to create the rbdplugin, you shouldn't
have to edit any other file.
After configuring everything you needed, deploy the snapshot class:
@ -44,7 +62,6 @@ Create a snapshot from the existing PVC:
kubectl create -f snapshot.yaml
```
To verify if your volume snapshot has successfully been created, run the following:
```console
@ -86,9 +103,12 @@ Status:
Events: <none>
```
To be sure everything is OK you can run `rbd snap ls [your-pvc-name]` inside one of your Ceph pod.
To be sure everything is OK you can run `rbd snap ls [your-pvc-name]` inside
one of your Ceph pod.
To restore the snapshot to a new PVC, deploy [pvc-restore.yaml](./rbd/pvc-restore.yaml) and a testing pod [pod-restore.yaml](./rbd/pvc-restore.yaml):
To restore the snapshot to a new PVC, deploy
[pvc-restore.yaml](./rbd/pvc-restore.yaml) and a testing pod
[pod-restore.yaml](./rbd/pvc-restore.yaml):
```bash
kubectl create -f pvc-restore.yaml