mirror of https://github.com/k3s-io/k3s
73 lines
2.7 KiB
Markdown
73 lines
2.7 KiB
Markdown
<!-- BEGIN MUNGE: UNVERSIONED_WARNING -->
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<!-- BEGIN STRIP_FOR_RELEASE -->
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<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
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width="25" height="25">
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<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
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width="25" height="25">
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<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
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width="25" height="25">
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<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
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width="25" height="25">
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<img src="http://kubernetes.io/img/warning.png" alt="WARNING"
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width="25" height="25">
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<h2>PLEASE NOTE: This document applies to the HEAD of the source tree</h2>
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If you are using a released version of Kubernetes, you should
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refer to the docs that go with that version.
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<!-- TAG RELEASE_LINK, added by the munger automatically -->
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<strong>
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The latest release of this document can be found
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[here](http://releases.k8s.io/release-1.2/examples/cephfs/README.md).
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Documentation for other releases can be found at
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[releases.k8s.io](http://releases.k8s.io).
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</strong>
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--
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<!-- END STRIP_FOR_RELEASE -->
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<!-- END MUNGE: UNVERSIONED_WARNING -->
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# How to Use it?
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Install Ceph on the Kubernetes host. For example, on Fedora 21
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# yum -y install ceph
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If you don't have a Ceph cluster, you can set up a [containerized Ceph cluster](https://github.com/rootfs/ceph_docker)
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Then get the keyring from the Ceph cluster and copy it to */etc/ceph/keyring*.
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Once you have installed Ceph and a Kubernetes cluster, you can create a pod based on my examples [cephfs.yaml](cephfs.yaml) and [cephfs-with-secret.yaml](cephfs-with-secret.yaml). In the pod yaml, you need to provide the following information.
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- *monitors*: Array of Ceph monitors.
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- *path*: Used as the mounted root, rather than the full Ceph tree. If not provided, default */* is used.
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- *user*: The RADOS user name. If not provided, default *admin* is used.
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- *secretFile*: The path to the keyring file. If not provided, default */etc/ceph/user.secret* is used.
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- *secretRef*: Reference to Ceph authentication secrets. If provided, *secret* overrides *secretFile*.
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- *readOnly*: Whether the filesystem is used as readOnly.
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Here are the commands:
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```console
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# kubectl create -f examples/cephfs/cephfs.yaml
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# create a secret if you want to use Ceph secret instead of secret file
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# kubectl create -f examples/cephfs/secret/ceph-secret.yaml
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# kubectl create -f examples/cephfs/cephfs-with-secret.yaml
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# kubectl get pods
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```
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If you ssh to that machine, you can run `docker ps` to see the actual pod and `docker inspect` to see the volumes used by the container.
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<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
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[]()
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<!-- END MUNGE: GENERATED_ANALYTICS -->
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