Install Murano API¶

Prerequisites¶

Before you install and configure the Application Catalog service, you must create a database, service credentials, and API endpoints.

1. To create the database, complete these steps:

   Murano can use various database types on the back end. For development purposes, SQLite is enough in most cases. For production installations, you should use MySQL or PostgreSQL databases.

   Warning

   Although murano could use a PostgreSQL database on the back end, it wasn’t thoroughly tested and should be used with caution.

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

     $ mysql -u root -p
     

   • Create the murano database:

     CREATE DATABASE murano;
     

   • Grant proper access to the murano database:

     GRANT ALL PRIVILEGES ON murano.* TO 'murano'@'localhost' IDENTIFIED BY 'MURANO_DBPASS';
     

     Replace MURANO_DBPASS with a suitable password.

   • Exit the database access client.

     exit;
     

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

   $ . admin-openrc
   

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

   • Create the murano user:

     $ openstack user create --domain default --password-prompt murano
     

   • Add the admin role to the murano user:

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

   • Create the murano service entities:

     $ openstack service create --name murano --description "Application Catalog" application-catalog
     

4. Create the Application Catalog service API endpoints:

   $ openstack endpoint create --region RegionOne \
     application-catalog public http://<murano-ip>:8082
   $ openstack endpoint create --region RegionOne \
     application-catalog internal http://<murano-ip>:8082
   $ openstack endpoint create --region RegionOne \
     application-catalog admin http://<murano-ip>:8082
   

   Note

   URLs (publicurl, internalurl and adminurl) may be different depending on your environment.

Install and configure components¶

1. Install the packages:

   # apt-get update
   
   # apt-get install murano-engine murano-api
   

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

   • In the [database] section, configure database access:

     [database]
     ...
     connection = mysql+pymysql://murano:MURANO_DBPASS@controller/murano
     

Install the API service and Engine¶

1. Create a folder which will hold all Murano components.

   mkdir ~/murano
   

2. Clone the murano git repository to the management server.

   cd ~/murano
   git clone https://git.openstack.org/openstack/murano
   

3. Set up the murano config file

   Murano has a common config file for API and Engine services.

   First, generate a sample configuration file, using tox

   cd ~/murano/murano
   tox -e genconfig
   

   And make a copy of it for further modifications

   cd ~/murano/murano/etc/murano
   ln -s murano.conf.sample murano.conf
   

4. Edit murano.conf with your favorite editor. Below is an example which contains basic settings you likely need to configure.

   Note

   The example below uses SQLite database. Edit [database] section if you want to use any other database type.

   [DEFAULT]
   debug = true
   verbose = true
   rabbit_host = %RABBITMQ_SERVER_IP%
   rabbit_userid = %RABBITMQ_USER%
   rabbit_password = %RABBITMQ_PASSWORD%
   rabbit_virtual_host = %RABBITMQ_SERVER_VIRTUAL_HOST%
   driver = messagingv2
   
   ...
   
   [database]
   backend = sqlalchemy
   connection = sqlite:///murano.sqlite
   
   ...
   
   [keystone]
   auth_url = 'http://%OPENSTACK_HOST_IP%:5000/v2.0'
   
   ...
   
   [keystone_authtoken]
   auth_uri = 'http://%OPENSTACK_HOST_IP%:5000/v2.0'
   auth_host = '%OPENSTACK_HOST_IP%'
   auth_port = 5000
   auth_protocol = http
   admin_tenant_name = %OPENSTACK_ADMIN_TENANT%
   admin_user = %OPENSTACK_ADMIN_USER%
   admin_password = %OPENSTACK_ADMIN_PASSWORD%
   
   ...
   
   [murano]
   url = http://%YOUR_HOST_IP%:8082
   
   [rabbitmq]
   host = %RABBITMQ_SERVER_IP%
   login = %RABBITMQ_USER%
   password = %RABBITMQ_PASSWORD%
   virtual_host = %RABBITMQ_SERVER_VIRTUAL_HOST%
   
   [networking]
   default_dns = 8.8.8.8 # In case openstack neutron has no default
                         # DNS configured
   

5. Create a virtual environment and install Murano prerequisites. We will use tox for that. The virtual environment will be created under .tox directory.

   cd ~/murano/murano
   tox
   

6. Create database tables for Murano.

   cd ~/murano/murano
   tox -e venv -- murano-db-manage \
     --config-file ./etc/murano/murano.conf upgrade
   

7. Open a new console and launch Murano API. A separate terminal is required because the console will be locked by a running process.

   cd ~/murano/murano
   tox -e venv -- murano-api --config-file ./etc/murano/murano.conf
   

8. Import Core Murano Library.

   cd ~/murano/murano
   pushd ./meta/io.murano
   zip -r ../../io.murano.zip *
   popd
   tox -e venv -- murano --murano-url http://localhost:8082 \
     package-import --is-public io.murano.zip
   

9. Open a new console and launch Murano Engine. A separate terminal is required because the console will be locked by a running process.

   cd ~/murano/murano
   tox -e venv -- murano-engine --config-file ./etc/murano/murano.conf