Configuring your setup

The AIO development environment uses the configuration files in test/roles/bootstrap-host/defaults/main.yml.

This file describes the default values for the host configuration. In addition to the configuration file, the configuration options can be passed through shell environment variables.

The BOOTSTRAP_OPTS variable is read by the bootstrap script as a space-separated key value pair. It can be used to pass values to override the default ones in the configuration file:

# export BOOTSTRAP_OPTS="${BOOTSTRAP_OPTS} bootstrap_host_loopback_cinder_size=512"

OSA also allows overriding default values for service configuration. These override values are provided in the /etc/openstack_deploy/user_variables.yml file.

The following is an example of overriding the values in nova.conf using the override file:

nova_nova_conf_overrides: 
  DEFAULT: 
    remove_unused_original_minimum_age_seconds: 43200 
  libvirt: 
    cpu_mode: host-model 
    disk_cachemodes: file=directsync,block=none 
  database: 
    idle_timeout: 300 
    max_pool_size: 10

This override file will populate the nova.conf file with the following options:

[DEFAULT] 
remove_unused_original_minimum_age_seconds = 43200 

[libvirt] 
cpu_mode = host-model 
disk_cachemodes = file=directsync,block=none 

[database] 
idle_timeout = 300 
max_pool_size = 10

The override variables can also be passed using a per host configuration stanza in/etc/openstack_deploy/openstack_user_config.yml.

The complete set of configuration options are described in the OpenStack Ansible documentation at http://docs.openstack.org/developer/openstack-ansible/install-guide/configure-openstack.html