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openstack-manuals/doc/install-guide/source/cinder-controller-node.rst
Jeremy Stanley 023add12b8 Install Guide: Switch from MySQL-python to PyMySQL 
As discussed in the Liberty Design Summit "Moving apps to Python 3"
cross-project workshop, the way forward in the near future is to
switch to the pure-python PyMySQL library as a default.

https://etherpad.openstack.org/p/liberty-cross-project-python3

This change only updates the Install Guide.

Change-Id: I71ff1841af54f5db870e836bc1c62499096a712e
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Install and configure controller node

This section describes how to install and configure the Block Storage service, code-named cinder, on the controller node. This service requires at least one additional storage node that provides volumes to instances.

To configure prerequisites

Before you install and configure the Block Storage service, you must create a database, service credentials, and API endpoint.

  1. To create the database, complete these steps:

    1. Use the database access client to connect to the database server as the root user:

      $ mysql -u root -p

    2. Create the cinder database:

      CREATE DATABASE cinder;

    3. Grant proper access to the cinder database:

      GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'localhost' \
  IDENTIFIED BY 'CINDER_DBPASS';
GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'%' \
  IDENTIFIED BY 'CINDER_DBPASS';

      Replace CINDER_DBPASS with a suitable password.

    4. Exit the database access client.

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

    $ source admin-openrc.sh

  3. To create the service credentials, complete these steps:

    1. Create a cinder user:

      $ openstack user create --password-prompt cinder
User Password:
Repeat User Password:
+----------+----------------------------------+
| Field    | Value                            |
+----------+----------------------------------+
| email    | None                             |
| enabled  | True                             |
| id       | 881ab2de4f7941e79504a759a83308be |
| name     | cinder                           |
| username | cinder                           |
+----------+----------------------------------+

    2. Add the admin role to the cinder user:

      $ openstack role add --project service --user cinder admin
+-------+----------------------------------+
| Field | Value                            |
+-------+----------------------------------+
| id    | cd2cb9a39e874ea69e5d4b896eb16128 |
| name  | admin                            |
+-------+----------------------------------+

    3. Create the cinder service entities:

      $ openstack service create --name cinder \
  --description "OpenStack Block Storage" volume
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Block Storage          |
| enabled     | True                             |
| id          | 1e494c3e22a24baaafcaf777d4d467eb |
| name        | cinder                           |
| type        | volume                           |
+-------------+----------------------------------+
      $ openstack service create --name cinderv2 \
  --description "OpenStack Block Storage" volumev2
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Block Storage          |
| enabled     | True                             |
| id          | 16e038e449c94b40868277f1d801edb5 |
| name        | cinderv2                         |
| type        | volumev2                         |
+-------------+----------------------------------+

      Note

      The Block Storage service requires both the volume and volumev2 services. However, both services use the same API endpoint that references the Block Storage version 2 API.

  4. Create the Block Storage service API endpoints:

    $ openstack endpoint create \
  --publicurl http://controller:8776/v2/%\(tenant_id\)s \
  --internalurl http://controller:8776/v2/%\(tenant_id\)s \
  --adminurl http://controller:8776/v2/%\(tenant_id\)s \
  --region RegionOne \
  volume
+--------------+-----------------------------------------+
| Field        | Value                                   |
+--------------+-----------------------------------------+
| adminurl     | http://controller:8776/v2/%(tenant_id)s |
| id           | d1b7291a2d794e26963b322c7f2a55a4        |
| internalurl  | http://controller:8776/v2/%(tenant_id)s |
| publicurl    | http://controller:8776/v2/%(tenant_id)s |
| region       | RegionOne                               |
| service_id   | 1e494c3e22a24baaafcaf777d4d467eb        |
| service_name | cinder                                  |
| service_type | volume                                  |
+--------------+-----------------------------------------+
    $ openstack endpoint create \
  --publicurl http://controller:8776/v2/%\(tenant_id\)s \
  --internalurl http://controller:8776/v2/%\(tenant_id\)s \
  --adminurl http://controller:8776/v2/%\(tenant_id\)s \
  --region RegionOne \
  volumev2
+--------------+-----------------------------------------+
| Field        | Value                                   |
+--------------+-----------------------------------------+
| adminurl     | http://controller:8776/v2/%(tenant_id)s |
| id           | 097b4a6fc8ba44b4b10d4822d2d9e076        |
| internalurl  | http://controller:8776/v2/%(tenant_id)s |
| publicurl    | http://controller:8776/v2/%(tenant_id)s |
| region       | RegionOne                               |
| service_id   | 16e038e449c94b40868277f1d801edb5        |
| service_name | cinderv2                                |
| service_type | volumev2                                |
+--------------+-----------------------------------------+

To install and configure Block Storage controller components

obs

  1. Install the packages:

    # zypper install openstack-cinder-api openstack-cinder-scheduler python-cinderclient

rdo

  1. Install the packages:

    # yum install openstack-cinder python-cinderclient python-oslo-db

ubuntu

  1. Install the packages:

    # apt-get install cinder-api cinder-scheduler python-cinderclient

2.

rdo

Copy the /usr/share/cinder/cinder-dist.conf file to /etc/cinder/cinder.conf.

# cp /usr/share/cinder/cinder-dist.conf /etc/cinder/cinder.conf
# chown -R cinder:cinder /etc/cinder/cinder.conf

Edit the /etc/cinder/cinder.conf file and complete the following actions:

  1. In the [database] section, configure database access:

    [database]
...
connection = mysql+pymysql://cinder:CINDER_DBPASS@controller/cinder

    Replace CINDER_DBPASS with the password you chose for the Block Storage database.

  2. In the [DEFAULT] and [oslo_messaging_rabbit] sections, configure RabbitMQ message queue access:

    [DEFAULT]
...
rpc_backend = rabbit

[oslo_messaging_rabbit]
...
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = RABBIT_PASS

    Replace RABBIT_PASS with the password you chose for the openstack account in RabbitMQ.

  3. In the [DEFAULT] and [keystone_authtoken] sections, configure Identity service access:

    [DEFAULT]
...
auth_strategy = keystone

[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = cinder
password = CINDER_PASS

    Replace CINDER_PASS with the password you chose for the cinder user in the Identity service.

    Note

    Comment out or remove any other options in the [keystone_authtoken] section.

  4. In the [DEFAULT] section, configure the my_ip option to use the management interface IP address of the controller node:

    [DEFAULT]
...
my_ip = 10.0.0.11

  5. In the [oslo_concurrency] section, configure the lock path:

    [oslo_concurrency]
...
lock_path = /var/lock/cinder

  6. (Optional) To assist with troubleshooting, enable verbose logging in the [DEFAULT] section:

    [DEFAULT]
...
verbose = True

  1. Populate the Block Storage database:

    # su -s /bin/sh -c "cinder-manage db sync" cinder

To finalize installation

obs or rdo

  1. Start the Block Storage services and configure them to start when the system boots:

    # systemctl enable openstack-cinder-api.service openstack-cinder-scheduler.service
# systemctl start openstack-cinder-api.service openstack-cinder-scheduler.service

ubuntu

  1. Restart the Block Storage services:

    # service cinder-scheduler restart
# service cinder-api restart

  2. By default, the Ubuntu packages create an SQLite database.

    Because this configuration uses an SQL database server, you can remove the SQLite database file:

    # rm -f /var/lib/cinder/cinder.sqlite
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