openstack/openstack-manuals
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Add etcd configuration steps for RHEL and CentOS

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Closes-Bug: #1740233

Change-Id: I59de4a7bf009a866c978512c6466803ba850f9c1
Signed-off-by: blkart <blkart.org@gmail.com>
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blkart 2018-01-03 00:30:24 +08:00
parent 64e109dabb
commit c2bc36fe7e
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doc/install-guide/source/environment-etcd-rdo.rst Normal file
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Etcd for RHEL and CentOS
~~~~~~~~~~~~~~~~~~~~~~~~
OpenStack services may use Etcd, a distributed reliable key-value store
for distributed key locking, storing configuration, keeping track of service
live-ness and other scenarios.
Install and configure components
--------------------------------
#. Install the package:
.. code-block:: console
# yum install etcd
.. end
2. Edit the ``/etc/etcd/etcd.conf`` file and set the ``ETCD_INITIAL_CLUSTER``,
``ETCD_INITIAL_ADVERTISE_PEER_URLS``, ``ETCD_ADVERTISE_CLIENT_URLS``,
``ETCD_LISTEN_CLIENT_URLS`` to the management IP address of the controller
node to enable access by other nodes via the management network:
.. code-block:: ini
#[Member]
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="http://10.0.0.11:2380"
ETCD_LISTEN_CLIENT_URLS="http://10.0.0.11:2379"
ETCD_NAME="controller"
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://10.0.0.11:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://10.0.0.11:2379"
ETCD_INITIAL_CLUSTER="controller=http://10.0.0.11:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster-01"
ETCD_INITIAL_CLUSTER_STATE="new"
.. end
Finalize installation
---------------------
#. Enable and start the etcd service:
.. code-block:: console
# systemctl enable etcd
# systemctl start etcd
.. end