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
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.
Note
This guide uses the Apache HTTP server with mod_wsgi
to serve Identity
service requests on port 5000. By default, the keystone service still
listens on this port. The package handles all of the Apache configuration
for you (including the activation of the mod_wsgi
apache2 module and
keystone configuration in Apache).
Run the following command to install the packages:
# apt install keystone
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.
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:
Note
The --keystone-user
and --keystone-group
flags are used to specify the
operating system’s user/group that will be used to run keystone. These are provided
to allow running keystone under another operating system user/group. In the example
below, we call the user & group keystone
.
# 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/apache2/apache2.conf
file and configure the
ServerName
option to reference the controller node:
ServerName controller
The ServerName
entry will need to be added if it does not already exist.
A secure deployment should have the web server configured to use SSL or running behind an SSL terminator.
Restart the Apache service:
# service apache2 restart
Configure the administrative account by setting the proper environmental variables:
$ 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
These values shown here are the default ones created from keystone-manage bootstrap
.
Replace ADMIN_PASS
with the password used in the
keystone-manage bootstrap
command in keystone-install-configure-ubuntu.
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