Creating a separate role with a task¶

You can create a separate role and attach a custom task to that role. Examples in this section describe installation of a Redis database server. You can apply similar principles for other tasks.

To create a separate role with a task:

1. Create a .yaml file with a user-friendly name.

   For example, redis.yaml.

2. Open the file for editing and add meta information:

   Example:

   meta:
     description: Simple Redis server
     name: Controller
   name: redis
   volumes_roles_mapping:
     - allocate_size: min
       id: os
   

3. Create a role using Fuel CLI:

   fuel role --rel 1 --create --file <my.yaml>
   

   Example:

   fuel role --rel 1 --create --file redis.yaml
   

4. Log in to the Fuel Web UI.

5. In the Nodes tab, verify that the required role is created.

6. Attach a task to the newly created role:

   1. Log in to Fuel CLI.

   2. Install the required Puppet modules.

      Example:

      puppet module install thomasvandoren-redis
      

   3. Write a simple manifest to the required location. For example: /etc/puppet/modules/redis/example/simple_redis.pp and include redis.

   4. Create a deployment task in you tasks.yaml. For example, in /etc/puppet/modules/redis/example/redis_tasks.yaml.

      Example:

       # redis group
       - id: redis
         type: group
         role: [redis]
         required_for: [deploy_end]
         tasks: [globals, hiera, netconfig, install_redis]
         parameters:
         strategy:
         type: parallel
      
      # Install simple redis server
      - id: install_redis
        type: puppet
        requires: [netconfig]
        required_for: [deploy_end]
        parameters:
          puppet_manifest: /etc/puppet/modules/redis/example/simple_redis.pp
          puppet_modules: /etc/puppet/modules
          timeout: 180
      

   5. Synchronize deployment tasks:

      fuel rel --sync-deployment-tasks --dir <path-to-puppet-manifest>
      

      Example:

      fuel rel --sync-deployment-tasks --dir /etc/puppet/mitaka-9.0/
      

   6. Configure and create an OpenStack environment with all required network, storage, and other settings.

   7. Provision a node with the created role:

      Example:

      fuel node --node <node_ID> --env <env_ID> --provision
      

   8. Deploy a node with the created role:

      fuel node --node <node_ID> --env <env_ID> --deploy