mirror of
https://github.com/ceph/ceph
synced 2024-12-22 03:22:00 +00:00
251 lines
7.4 KiB
ReStructuredText
251 lines
7.4 KiB
ReStructuredText
=====================
|
|
Deploying with Chef
|
|
=====================
|
|
|
|
We use Chef cookbooks to deploy Ceph. See `Managing Cookbooks with Knife`_ for details
|
|
on using ``knife``. For Chef installation instructions, see `Installing Chef`_.
|
|
|
|
.. _clonecbs:
|
|
|
|
Clone the Required Cookbooks
|
|
----------------------------
|
|
|
|
To get the cookbooks for Ceph, clone them from git.::
|
|
|
|
cd ~/chef-cookbooks
|
|
git clone https://github.com/opscode-cookbooks/apache2.git
|
|
git clone https://github.com/ceph/ceph-cookbooks.git ceph
|
|
|
|
.. _addcbpaths:
|
|
|
|
Add the Required Cookbook Paths
|
|
-------------------------------
|
|
|
|
If you added a default cookbook path when you installed Chef, ``knife``
|
|
may be able to upload the cookbook you've cloned to your cookbook path
|
|
directory without further configuration. If you used a different path,
|
|
or if the cookbook repository you cloned has a different tree structure,
|
|
add the required cookbook path to your ``knife.rb`` file. The
|
|
``cookbook_path`` setting takes a string or an array of strings.
|
|
For example, you can replace a string path with an array of string paths::
|
|
|
|
cookbook_path '/home/{user-name}/chef-cookbooks/'
|
|
|
|
Becomes::
|
|
|
|
cookbook_path [
|
|
'/home/{user-name}/chef-cookbooks/',
|
|
'/home/{user-name}/chef-cookbooks/{another-directory}/',
|
|
'/some/other/path/to/cookbooks/'
|
|
]
|
|
|
|
.. _installcbs:
|
|
|
|
Install the Cookbooks
|
|
---------------------
|
|
|
|
To install Ceph, you must upload the Ceph cookbooks and the Apache cookbooks
|
|
(for use with RADOSGW) to your Chef server. ::
|
|
|
|
knife cookbook upload apache2 ceph
|
|
|
|
.. _configcephenv:
|
|
|
|
Configure your Ceph Environment
|
|
-------------------------------
|
|
|
|
The Chef server can support installation of software for multiple environments.
|
|
The environment you create for Ceph requires an ``fsid``, the secret for
|
|
your monitor(s) if you are running Ceph with ``cephx`` authentication, and
|
|
the host name (i.e., short name) for your monitor hosts.
|
|
|
|
.. tip: Open an empty text file to hold the following values until you create
|
|
your Ceph environment.
|
|
|
|
For the filesystem ID, use ``uuidgen`` from the ``uuid-runtime`` package to
|
|
generate a unique identifier. ::
|
|
|
|
uuidgen -r
|
|
|
|
For the monitor(s) secret(s), use ``ceph-authtool`` to generate the secret(s)::
|
|
|
|
sudo apt-get update
|
|
sudo apt-get install ceph-common
|
|
ceph-authtool /dev/stdout --name=mon. --gen-key
|
|
|
|
The secret is the value to the right of ``"key ="``, and should look something
|
|
like this::
|
|
|
|
AQBAMuJPINJgFhAAziXIrLvTvAz4PRo5IK/Log==
|
|
|
|
To create an environment for Ceph, set a command line editor. For example::
|
|
|
|
export EDITOR=vim
|
|
|
|
Then, use ``knife`` to create an environment. ::
|
|
|
|
knife environment create {env-name}
|
|
|
|
For example::
|
|
|
|
knife environment create Ceph
|
|
|
|
A JSON file will appear. Perform the following steps:
|
|
|
|
#. Enter a description for the environment.
|
|
#. In ``"default_attributes": {}``, add ``"ceph" : {}``.
|
|
#. Within ``"ceph" : {}``, add ``"monitor-secret":``.
|
|
#. Immediately following ``"monitor-secret":`` add the key you generated within quotes, followed by a comma.
|
|
#. Within ``"ceph":{}`` and following the ``monitor-secret`` key-value pair, add ``"config": {}``
|
|
#. Within ``"config": {}`` add ``"fsid":``.
|
|
#. Immediately following ``"fsid":``, add the unique identifier you generated within quotes, followed by a comma.
|
|
#. Within ``"config": {}`` and following the ``fsid`` key-value pair, add ``"mon_initial_members":``
|
|
#. Immediately following ``"mon_initial_members":``, enter the initial monitor host names.
|
|
|
|
For example::
|
|
|
|
"default_attributes" : {
|
|
"ceph": {
|
|
"monitor-secret": "{replace-with-generated-secret}",
|
|
"config": {
|
|
"fsid": "{replace-with-generated-uuid}",
|
|
"mon_initial_members": "{replace-with-monitor-hostname(s)}"
|
|
}
|
|
}
|
|
}
|
|
|
|
Advanced users (i.e., developers and QA) may also add ``"ceph_branch": "{branch}"``
|
|
to ``default-attributes``, replacing ``{branch}`` with the name of the branch you
|
|
wish to use (e.g., ``master``).
|
|
|
|
.. configroles:
|
|
|
|
Configure the Roles
|
|
-------------------
|
|
|
|
Navigate to the Ceph cookbooks directory. ::
|
|
|
|
cd ~/chef-cookbooks/ceph
|
|
|
|
Create roles for OSDs, monitors, metadata servers, and RADOS Gateways from
|
|
their respective role files. ::
|
|
|
|
knife role from file roles/ceph-osd.rb
|
|
knife role from file roles/ceph-mon.rb
|
|
knife role from file roles/ceph-mds.rb
|
|
knife role from file roles/ceph-radosgw.rb
|
|
|
|
.. _confignodes:
|
|
|
|
Configure Nodes
|
|
---------------
|
|
|
|
You must configure each node you intend to include in your Ceph cluster.
|
|
Identify nodes for your Ceph cluster. ::
|
|
|
|
knife node list
|
|
|
|
.. note: for each host where you installed Chef and executed ``chef-client``,
|
|
the Chef server should have a minimal node configuration. You can create
|
|
additional nodes with ``knife node create {node-name}``.
|
|
|
|
For each node you intend to use in your Ceph cluster, configure the node
|
|
as follows::
|
|
|
|
knife node edit {node-name}
|
|
|
|
The node configuration should appear in your text editor. Change the
|
|
``chef_environment`` value to ``Ceph`` (or whatever name you set for your
|
|
Ceph environment).
|
|
|
|
In the ``run_list``, add ``"recipe[ceph::apt]",`` to all nodes as
|
|
the first setting, so that Chef can install or update the necessary packages.
|
|
Then, add at least one of::
|
|
|
|
"role[ceph-mon]"
|
|
"role[ceph-osd]"
|
|
"role[ceph-mds]"
|
|
"role[ceph-radosgw]"
|
|
|
|
If you add more than one role, separate them with a comma. Run ``hostname``
|
|
on your command line, and replace the ``{hostname}`` setting of the ``name``
|
|
key to the host name for the node. ::
|
|
|
|
{
|
|
"chef_environment": "Ceph",
|
|
"name": "{hostname}",
|
|
"normal": {
|
|
"tags": [
|
|
|
|
]
|
|
},
|
|
"run_list": [
|
|
"recipe[ceph::apt]",
|
|
"role[ceph-mon]",
|
|
"role[ceph-mds]"
|
|
]
|
|
}
|
|
|
|
.. _prepdisks:
|
|
|
|
Prepare OSD Disks
|
|
-----------------
|
|
|
|
Configuring a node with an OSD role tells Chef that the node will run at
|
|
least one OSD. However, you may run many OSDs on one host. For example,
|
|
you may run one ``ceph-osd`` daemon for each data disk on the system.
|
|
This step prepares the OSD disk(s) and tells Chef how many OSDs the
|
|
node will be running.
|
|
|
|
|
|
For the Ceph 0.48 Argonaut release, install ``gdisk``::
|
|
|
|
sudo apt-get install gdisk
|
|
|
|
For the Ceph 0.48 Argonaut release, on each hard disk that will store data for
|
|
an OSD daemon, configure the hard disk for use with Ceph. Replace ``{fsid}``
|
|
with the UUID you generated while using ``uuidgen -r``.
|
|
|
|
.. important: This procedure will erase all information in ``/dev/{disk}``.
|
|
|
|
::
|
|
|
|
sudo sgdisk /dev/{disk} --zap-all --clear --mbrtogpt --largest-new=1 --change-name=1:'ceph data' --typecode=1:{fsid}
|
|
|
|
Create a file system and allocate the disk to your cluster. Specify a
|
|
filesystem (e.g., ``ext4``, ``xfs``, ``btrfs``). When you execute
|
|
``ceph-disk-prepare``, remember to replace ``{fsid}`` with the UUID you
|
|
generated while using ``uuidgen -r``::
|
|
|
|
sudo mkfs -t ext4 /dev/{disk}
|
|
sudo mount -o user_xattr /dev/{disk} /mnt
|
|
sudo ceph-disk-prepare --cluster-uuid={fsid} /mnt
|
|
sudo umount /mnt
|
|
|
|
Finally, simulate a hotplug event. ::
|
|
|
|
sudo udevadm trigger --subsystem-match=block --action=add
|
|
|
|
|
|
.. _runchefclient:
|
|
|
|
Run ``chef-client`` on each Node
|
|
--------------------------------
|
|
|
|
Once you have completed the preceding steps, you must run ``chef-client``
|
|
on each node. For example::
|
|
|
|
sudo chef-client
|
|
|
|
.. _proceedtoops:
|
|
|
|
Proceed to Operating the Cluster
|
|
--------------------------------
|
|
|
|
Once you complete the deployment, you may begin operating your cluster.
|
|
See `Operating a Cluster`_ for details.
|
|
|
|
|
|
.. _Managing Cookbooks with Knife: http://wiki.opscode.com/display/chef/Managing+Cookbooks+With+Knife
|
|
.. _Installing Chef: ../../install/chef
|
|
.. _Operating a Cluster: ../../init/ |