Installing Aodh

Aodh provides monitoring and alarm services. Install Aodh on the controller node.

1. Create a database.
   1. Log in to the database as the root user.

      mysql -u root -p

   2. In the database, create an Aodh database and grant permissions.

      CREATE DATABASE aodh; 
      GRANT ALL PRIVILEGES ON aodh.* TO 'aodh'@'localhost' IDENTIFIED BY 'AODH_DBPASS'; 
      GRANT ALL PRIVILEGES ON aodh.* TO 'aodh'@'%' IDENTIFIED BY 'AODH_DBPASS'; 

      

      Replace AODH_DBPASS with the Aodh database user password. The password cannot contain the characters including #@$ and can contain the special characters including &=-_.+!*()

   3. Exit the database.

      exit

2. Create Keystone resource objects.

   openstack user create --domain default --password-prompt aodh 
   openstack role add --project service --user aodh admin 
   openstack service create --name aodh --description "Telemetry" alarming 
   openstack endpoint create --region RegionOne alarming public http://controller:8042 
   openstack endpoint create --region RegionOne alarming internal http://controller:8042 
   openstack endpoint create --region RegionOne alarming admin http://controller:8042

   

   The password cannot contain the characters including #@$ and can contain the special characters including &=-_.+!*()

3. Install Aodh.

   yum install openstack-aodh-api openstack-aodh-evaluator openstack-aodh-notifier openstack-aodh-listener openstack-aodh-expirer python3-aodhclient

4. Modify the configuration file.
   1. Open the file.

      vi  /etc/aodh/aodh.conf

   2. Press i to enter the insert mode and modify the following content:

      [database]
      connection = mysql+pymysql://aodh:AODH_DBPASS@controller/aodh
       
      [DEFAULT] 
      transport_url = rabbit://openstack:RABBIT_PASSWORD@controller
      auth_strategy = keystone 
       
      [keystone_authtoken] 
      www_authenticate_uri = http://controller:5000 
      auth_url = http://controller:5000 
      memcached_servers = controller:11211 
      auth_type = password 
      project_domain_id = default 
      user_domain_id = default 
      project_name = service 
      username = aodh 
      password = AODH_PASSWORD
       
      [service_credentials] 
      auth_type = password 
      auth_url = http://controller:5000/v3 
      project_domain_id = default 
      user_domain_id = default 
      project_name = service 
      username = aodh 
      password = AODH_PASSWORD
      interface = internalURL 
      region_name = RegionOne

      

      Replace AODH_DBPASS with the Aodh database password, RABBIT_PASSWORD with the OpenStack RabbitMQ password, and AODH_PASSWORD with the Aodh user password. The password cannot contain the characters including #@$ and can contain the special characters including &=-_.+!*()

   3. Press Esc to exit the insert mode. Type :wq! and press Enter to save the file and exit.
5. Initialize the database.

   aodh-dbsync

6. Start the Aodh service.

   systemctl enable openstack-aodh-api.service openstack-aodh-evaluator.service openstack-aodh-notifier.service openstack-aodh-listener.service 
   systemctl start openstack-aodh-api.service openstack-aodh-evaluator.service openstack-aodh-notifier.service openstack-aodh-listener.service