mirror of https://github.com/ceph/ceph-ansible.git
92 lines
3.0 KiB
Markdown
92 lines
3.0 KiB
Markdown
ceph-ansible
|
|
============
|
|
|
|
Ansible playbook for Ceph!
|
|
|
|
Clone me:
|
|
|
|
```bash
|
|
git clone https://github.com/ceph/ceph-ansible.git
|
|
cp vagrant_variables.yml.sample vagrant_variables.yml
|
|
```
|
|
|
|
## What does it do?
|
|
|
|
General support for:
|
|
|
|
* Monitors
|
|
* OSDs
|
|
* MDSs
|
|
* RGW
|
|
|
|
More details:
|
|
|
|
* Authentication (cephx), this can be disabled.
|
|
* Supports cluster public and private network.
|
|
* Monitors deployment. You can easily start with one monitor and then progressively add new nodes. So can deploy one monitor for testing purpose. For production, I recommend to always use an odd number of monitors, 3 tends to be the standard.
|
|
* Object Storage Daemons. Like the monitors you can start with a certain amount of nodes and then grow this number. The playbook either supports a dedicated device for storing the journal or both journal and OSD data on the same device (using a tiny partition at the beginning of the device).
|
|
* Metadata daemons.
|
|
* Collocation. The playbook supports collocating Monitors, OSDs and MDSs on the same machine.
|
|
* The playbook was validated on Debian Wheezy, Ubuntu 12.04 LTS and CentOS 6.4.
|
|
* Tested on Ceph Dumpling and Emperor.
|
|
* A rolling upgrade playbook was written, an upgrade from Dumpling to Emperor was performed and worked.
|
|
|
|
|
|
## Setup with Vagrant
|
|
|
|
Run your virtual machines:
|
|
|
|
```bash
|
|
$ vagrant up
|
|
...
|
|
...
|
|
...
|
|
____________
|
|
< PLAY RECAP >
|
|
------------
|
|
\ ^__^
|
|
\ (oo)\_______
|
|
(__)\ )\/\
|
|
||----w |
|
|
|| ||
|
|
|
|
|
|
mon0 : ok=16 changed=11 unreachable=0 failed=0
|
|
mon1 : ok=16 changed=10 unreachable=0 failed=0
|
|
mon2 : ok=16 changed=11 unreachable=0 failed=0
|
|
osd0 : ok=19 changed=7 unreachable=0 failed=0
|
|
osd1 : ok=19 changed=7 unreachable=0 failed=0
|
|
osd2 : ok=19 changed=7 unreachable=0 failed=0
|
|
rgw : ok=20 changed=17 unreachable=0 failed=0
|
|
```
|
|
|
|
Check the status:
|
|
|
|
```bash
|
|
$ vagrant ssh mon0 -c "sudo ceph -s"
|
|
cluster 4a158d27-f750-41d5-9e7f-26ce4c9d2d45
|
|
health HEALTH_OK
|
|
monmap e3: 3 mons at {ceph-mon0=192.168.0.10:6789/0,ceph-mon1=192.168.0.11:6789/0,ceph-mon2=192.168.0.12:6789/0}, election epoch 6, quorum 0,1,2 ceph-mon0,ceph-mon1,ceph-mon
|
|
mdsmap e6: 1/1/1 up {0=ceph-osd0=up:active}, 2 up:standby
|
|
osdmap e10: 6 osds: 6 up, 6 in
|
|
pgmap v17: 192 pgs, 3 pools, 9470 bytes data, 21 objects
|
|
205 MB used, 29728 MB / 29933 MB avail
|
|
192 active+clean
|
|
```
|
|
|
|
To re-run the Ansible provisioning scripts:
|
|
|
|
```bash
|
|
$ vagrant provision
|
|
```
|
|
|
|
## Specifying fsid and secret key in production
|
|
|
|
The Vagrantfile specifies an fsid for the cluster and a secret key for the
|
|
monitor. If using these playbooks in production, you must generate your own `fsid`
|
|
in `group_vars/all` and `monitor_secret` in `group_vars/mons`. Those files contain
|
|
information about how to generate appropriate values for these variables.
|
|
|
|
|
|
|