[install] Add cinder backup service

Add instructions to optionally install and configure the
Block Storage (cinder) backup service on the storage node.

Change-Id: Idf61bf9249c34cafcd37f97c37f33983e9a2a000
Co-Authored-By: Matt Kassawara <mkassawara@gmail.com>
Closes-Bug: #1547173

doc/install-guide-debconf/source/cinder-backup-install.rst

@@ -0,0 +1 @@
+../../install-guide/source/cinder-backup-install.rst

doc/install-guide/source/cinder-backup-install.rst

@@ -0,0 +1,82 @@
+.. _cinder-backup-install:
+
+Install and configure the backup service
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Optionally, install and configure the backup service. For simplicity,
+this configuration uses the Block Storage node and the Object Storage
+(swift) driver, thus depending on the
+`Object Storage service <http://docs.openstack.org/project-install-guide/newton/object-storage>`_.
+
+.. note::
+
+   You must :ref:`install and configure a storage node <cinder-storage>` prior
+   to installing and configuring the backup service.
+
+Install and configure components
+--------------------------------
+
+.. note::
+
+   Perform these steps on the Block Storage node.
+
+.. only:: obs
+
+   #. Install the packages:
+
+      .. code-block:: console
+
+         # zypper install openstack-cinder-backup
+
+.. only:: rdo
+
+   #. Install the packages:
+
+      .. code-block:: console
+
+         # yum install openstack-cinder
+
+.. only:: ubuntu or debian
+
+   #. Install the packages:
+
+      .. code-block:: console
+
+        # apt-get install cinder-backup
+
+2. Edit the ``/etc/cinder/cinder.conf`` file
+   and complete the following actions:
+
+   * In the ``[DEFAULT]`` section, configure backup options:
+
+     .. code-block:: ini
+
+        [DEFAULT]
+        ...
+        backup_driver = cinder.backup.drivers.swift
+        backup_swift_url = SWIFT_URL
+
+     Replace ``SWIFT_URL`` with the URL of the Object Storage service, typically
+     ``http://10.0.0.51:8080/v1/AUTH_`` if using the installation guide
+     architecture.
+
+Finalize installation
+---------------------
+
+.. only:: obs or rdo
+
+   Start the Block Storage backup service and configure it to
+   start when the system boots:
+
+   .. code-block:: console
+
+      # systemctl enable openstack-cinder-backup.service
+      # systemctl start openstack-cinder-backup.service
+
+.. only:: ubuntu or debian
+
+   Restart the Block Storage backup service:
+
+   .. code-block:: console
+
+      # service cinder-backup restart

doc/install-guide/source/cinder-verify.rst

@@ -26,4 +26,9 @@ Verify operation of the Block Storage service.
       +------------------+------------+------+---------+-------+----------------------------+-----------------+
       | cinder-scheduler | controller | nova | enabled |   up  | 2014-10-18T01:30:54.000000 |       None      |
       | cinder-volume    | block1@lvm | nova | enabled |   up  | 2014-10-18T01:30:57.000000 |       None      |
+      | cinder-backup    | block1     | nova | enabled |   up  | 2014-10-18T01:30:59.000000 |       None      |
       +------------------+------------+------+---------+-------+----------------------------+-----------------+
+
+   .. note::
+
+      The ``cinder-backup`` service only appears if you :ref:`cinder-backup-install`.

doc/install-guide/source/cinder.rst

@@ -9,6 +9,7 @@ Block Storage service
    common/get_started_block_storage.rst
    cinder-controller-install.rst
    cinder-storage-install.rst
+   cinder-backup-install.rst
    cinder-verify.rst
    cinder-next-steps.rst
 
@@ -25,7 +26,3 @@ on controllers, compute nodes, or standalone storage nodes.
 For more information, see the
 `Configuration Reference <http://docs.openstack.org/mitaka/config-reference/block-storage/volume-drivers.html>`__.
 
-.. note::
-
-   This chapter omits the backup manager because it depends on the
-   Object Storage service.