mirror of https://github.com/ceph/ceph-ansible.git
51 lines
1.3 KiB
ReStructuredText
51 lines
1.3 KiB
ReStructuredText
Adding/Removing OSD(s) after a cluster is deployed is a common operation that should be straight-forward to achieve.
|
|
|
|
|
|
Adding osd(s)
|
|
-------------
|
|
|
|
Adding new OSD(s) on an existing host or adding a new OSD node can be achieved by running the main playbook with the ``--limit`` ansible option.
|
|
You basically need to update your host_vars/group_vars with the new hardware and/or the inventory host file with the new osd nodes being added.
|
|
|
|
The command used would be like following:
|
|
|
|
``ansible-playbook -vv -i <your-inventory> site-docker.yml --limit <node>``
|
|
|
|
example:
|
|
|
|
.. code-block:: shell
|
|
|
|
$ cat hosts
|
|
[mons]
|
|
mon-node-1
|
|
mon-node-2
|
|
mon-node-3
|
|
|
|
[mgrs]
|
|
mon-node-1
|
|
mon-node-2
|
|
mon-node-3
|
|
|
|
[osds]
|
|
osd-node-1
|
|
osd-node-2
|
|
osd-node-3
|
|
osd-node-99
|
|
|
|
$ ansible-playbook -vv -i hosts site-docker.yml --limit osd-node-99
|
|
|
|
|
|
Shrinking osd(s)
|
|
----------------
|
|
|
|
Shrinking OSDs can be done by using the shrink-osd.yml playbook provided in ``infrastructure-playbooks`` directory.
|
|
|
|
The variable ``osd_to_kill`` is a comma separated list of OSD IDs which must be passed to the playbook (passing it as an extra var is the easiest way).
|
|
|
|
The playbook will shrink all osds passed in ``osd_to_kill`` serially.
|
|
|
|
example:
|
|
|
|
.. code-block:: shell
|
|
|
|
$ ansible-playbook -vv -i hosts infrastructure-playbooks/shrink-osds.yml -e osd_to_kill=1,2,3 |