This section describes how to install and configure the OpenStack Identity service, code-named keystone, on the controller node. For scalability purposes, this configuration deploys Fernet tokens and the Apache HTTP server to handle requests.
Note
Ensure that you have completed the prerequisite installation steps in the Openstack Install Guide before proceeding.
Before you install and configure the Identity service, you must create a database.
Use the database access client to connect to the database
server as the root
user:
$ mysql -u root -p
Create the keystone
database:
MariaDB [(none)]> CREATE DATABASE keystone;
Grant proper access to the keystone
database:
MariaDB [(none)]> GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'localhost' \
IDENTIFIED BY 'KEYSTONE_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'%' \
IDENTIFIED BY 'KEYSTONE_DBPASS';
Replace KEYSTONE_DBPASS
with a suitable password.
Exit the database access client.
Note
Default configuration files vary by distribution. You might need
to add these sections and options rather than modifying existing
sections and options. Also, an ellipsis (...
) in the configuration
snippets indicates potential default configuration options that you
should retain.
Run the following command to install the packages:
# yum install openstack-keystone httpd mod_wsgi
Edit the /etc/keystone/keystone.conf
file and complete the following
actions:
In the [database]
section, configure database access:
[database]
# ...
connection = mysql+pymysql://keystone:KEYSTONE_DBPASS@controller/keystone
Replace KEYSTONE_DBPASS
with the password you chose for the database.
Note
Comment out or remove any other connection
options in the
[database]
section.
Note
The host, controller
in this example, must be resolvable.
In the [token]
section, configure the Fernet token provider:
[token]
# ...
provider = fernet
Populate the Identity service database:
# su -s /bin/sh -c "keystone-manage db_sync" keystone
Initialize Fernet key repositories:
# keystone-manage fernet_setup --keystone-user keystone --keystone-group keystone
# keystone-manage credential_setup --keystone-user keystone --keystone-group keystone
Bootstrap the Identity service:
Note
Before the Queens release, keystone needed to be run on two separate ports to accommodate the Identity v2 API which ran a separate admin-only service commonly on port 35357. With the removal of the v2 API, keystone can be run on the same port for all interfaces.
# keystone-manage bootstrap --bootstrap-password ADMIN_PASS \
--bootstrap-admin-url http://controller:5000/v3/ \
--bootstrap-internal-url http://controller:5000/v3/ \
--bootstrap-public-url http://controller:5000/v3/ \
--bootstrap-region-id RegionOne
Replace ADMIN_PASS
with a suitable password for an administrative user.
Edit the /etc/httpd/conf/httpd.conf
file and configure the
ServerName
option to reference the controller node:
ServerName controller
Create a link to the /usr/share/keystone/wsgi-keystone.conf
file:
# ln -s /usr/share/keystone/wsgi-keystone.conf /etc/httpd/conf.d/
A secure deployment should have the web server configured to use SSL or running behind an SSL terminator.
Start the Apache HTTP service and configure it to start when the system boots:
# systemctl enable httpd.service
# systemctl start httpd.service
Configure the administrative account
$ export OS_USERNAME=admin
$ export OS_PASSWORD=ADMIN_PASS
$ export OS_PROJECT_NAME=admin
$ export OS_USER_DOMAIN_NAME=Default
$ export OS_PROJECT_DOMAIN_NAME=Default
$ export OS_AUTH_URL=http://controller:5000/v3
$ export OS_IDENTITY_API_VERSION=3
Replace ADMIN_PASS
with the password used in the
keystone-manage bootstrap
command in keystone-install-configure-rdo.
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