.. _swift-controller:

Install and configure the controller node
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This section describes how to install and configure the proxy service that
handles requests for the account, container, and object services operating
on the storage nodes. For simplicity, this guide installs and configures
the proxy service on the controller node. However, you can run the proxy
service on any node with network connectivity to the storage nodes.
Additionally, you can install and configure the proxy service on multiple
nodes to increase performance and redundancy. For more information, see the
`Deployment Guide <http://docs.openstack.org/developer/swift/deployment_guide.html>`__.

Prerequisites
-------------

The proxy service relies on an authentication and authorization mechanism such
as the Identity service. However, unlike other services, it also offers an
internal mechanism that allows it to operate without any other OpenStack
services. However, for simplicity, this guide references the Identity service
in :doc:`keystone`. Before you configure the Object Storage service, you must
create service credentials and an API endpoint.

.. note::

   The Object Storage service does not use an SQL database on the controller
   node. Instead, it uses distributed SQLite databases on each storage node.

#. Source the ``admin`` credentials to gain access to admin-only CLI commands:

   .. code-block:: console

      $ source admin-openrc.sh

#. To create the Identity service credentials, complete these steps:

   * Create the ``swift`` user:

     .. code-block:: console

        $ openstack user create --domain default --password-prompt swift
        User Password:
        Repeat User Password:
        +-----------+----------------------------------+
        | Field     | Value                            |
        +-----------+----------------------------------+
        | domain_id | default                          |
        | enabled   | True                             |
        | id        | d535e5cbd2b74ac7bfb97db9cced3ed6 |
        | name      | swift                            |
        +-----------+----------------------------------+

   * Add the ``admin`` role to the ``swift`` user:

     .. code-block:: console

        $ openstack role add --project service --user swift admin

     .. note::

        This command provides no output.

   * Create the ``swift`` service entity:

     .. code-block:: console

        $ openstack service create --name swift \
          --description "OpenStack Object Storage" object-store
        +-------------+----------------------------------+
        | Field       | Value                            |
        +-------------+----------------------------------+
        | description | OpenStack Object Storage         |
        | enabled     | True                             |
        | id          | 75ef509da2c340499d454ae96a2c5c34 |
        | name        | swift                            |
        | type        | object-store                     |
        +-------------+----------------------------------+

#. Create the Object Storage service API endpoints:

   .. code-block:: console

      $ openstack endpoint create --region RegionOne \
        object-store public http://controller:8080/v1/AUTH_%\(tenant_id\)s
      +--------------+----------------------------------------------+
      | Field        | Value                                        |
      +--------------+----------------------------------------------+
      | enabled      | True                                         |
      | id           | 12bfd36f26694c97813f665707114e0d             |
      | interface    | public                                       |
      | region       | RegionOne                                    |
      | region_id    | RegionOne                                    |
      | service_id   | 75ef509da2c340499d454ae96a2c5c34             |
      | service_name | swift                                        |
      | service_type | object-store                                 |
      | url          | http://controller:8080/v1/AUTH_%(tenant_id)s |
      +--------------+----------------------------------------------+

      $ openstack endpoint create --region RegionOne \
        object-store internal http://controller:8080/v1/AUTH_%\(tenant_id\)s
      +--------------+----------------------------------------------+
      | Field        | Value                                        |
      +--------------+----------------------------------------------+
      | enabled      | True                                         |
      | id           | 7a36bee6733a4b5590d74d3080ee6789             |
      | interface    | internal                                     |
      | region       | RegionOne                                    |
      | region_id    | RegionOne                                    |
      | service_id   | 75ef509da2c340499d454ae96a2c5c34             |
      | service_name | swift                                        |
      | service_type | object-store                                 |
      | url          | http://controller:8080/v1/AUTH_%(tenant_id)s |
      +--------------+----------------------------------------------+

      $ openstack endpoint create --region RegionOne \
        object-store admin http://controller:8080/v1
      +--------------+----------------------------------+
      | Field        | Value                            |
      +--------------+----------------------------------+
      | enabled      | True                             |
      | id           | ebb72cd6851d4defabc0b9d71cdca69b |
      | interface    | admin                            |
      | region       | RegionOne                        |
      | region_id    | RegionOne                        |
      | service_id   | 75ef509da2c340499d454ae96a2c5c34 |
      | service_name | swift                            |
      | service_type | object-store                     |
      | url          | http://controller:8080/v1        |
      +--------------+----------------------------------+

Install and configure components
--------------------------------

.. include:: shared/note_configuration_vary_by_distribution.rst

#. Install the packages:

   .. only:: ubuntu or debian

      .. code-block:: console

         # apt-get install swift swift-proxy python-swiftclient \
           python-keystoneclient python-keystonemiddleware \
           memcached

   .. only:: rdo

      .. code-block:: console

         # yum install openstack-swift-proxy python-swiftclient \
           python-keystone-auth-token python-keystonemiddleware \
           memcached

   .. only:: obs

      .. code-block:: console

         # zypper install openstack-swift-proxy python-swiftclient \
           python-keystoneclient python-keystonemiddleware \
           python-xml memcached

   .. note::

      Complete OpenStack environments already include some of these
      packages.

.. only:: ubuntu or debian

   2. Create the ``/etc/swift`` directory.

   3. Obtain the proxy service configuration file from the Object Storage
      source repository:

      .. code-block:: console

         # curl -o /etc/swift/proxy-server.conf \
           https://git.openstack.org/cgit/openstack/swift/plain/etc/ \
           proxy-server.conf-sample?h=stable/liberty

.. only:: rdo

   2. Obtain the proxy service configuration file from the Object Storage
      source repository:

      .. code-block:: console

         # curl -o /etc/swift/proxy-server.conf \
           https://git.openstack.org/cgit/openstack/swift/plain/etc/ \
           proxy-server.conf-sample?h=stable/liberty

.. only:: obs

   2. .. include:: swift-controller-include.txt

.. only:: rdo

   3. .. include:: swift-controller-include.txt

.. only:: ubuntu

   4. .. include:: swift-controller-include.txt