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rbd: don't use /dev/rbd/pool/image; use sysfs to find rbd device instead

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rbd: if rbd image is not formatted, format it to the designated filesystem type

rbd: update example README.md and include instructions to get base64 encoded Ceph secret

if rbd fails to lock image, unmap the image before exiting

Signed-off-by: Huamin Chen <hchen@redhat.com>
This commit is contained in:
Huamin Chen
2015-09-16 08:52:22 -04:00
parent 0f8adc5d53
commit 8dbbcefdec
3 changed files with 58 additions and 17 deletions
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11
examples/rbd/README.md
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@@ -35,7 +35,7 @@ Documentation for other releases can be found at
Install Ceph on the Kubernetes host. For example, on Fedora 21
# yum -y install ceph
# yum -y install ceph-common
If you don't have a Ceph cluster, you can set up a [containerized Ceph cluster](https://github.com/rootfs/docker-ceph)
@@ -54,7 +54,14 @@ Once you have installed Ceph and new Kubernetes, you can create a pod based on m
# Use Ceph Authentication Secret
If Ceph authentication secret is provided, the secret should be first be base64 encoded, then encoded string is placed in a secret yaml. An example yaml is provided [here](secret/ceph-secret.yaml). Then post the secret through ```kubectl``` in the following command.
If Ceph authentication secret is provided, the secret should be first be *base64 encoded*, then encoded string is placed in a secret yaml. For example, getting Ceph user `kube`'s base64 encoded secret can use the following command:
```console
# grep key /etc/ceph/ceph.client.kube.keyring |awk '{printf "%s", $NF}'|base64
QVFBTWdYaFZ3QkNlRGhBQTlubFBhRnlmVVNhdEdENGRyRldEdlE9PQ==
```
An example yaml is provided [here](secret/ceph-secret.yaml). Then post the secret through ```kubectl``` in the following command.
```console
# kubectl create -f examples/rbd/secret/ceph-secret.yaml