tripleo-docs/doc/source/install/advanced_deployment/api_policies.rst

Configuring API access policies

Each OpenStack service, has its own role-based access policies. They determine which user can access which resources in which way, and are defined in the service’s policy.json file.

Warning

While editing policy.json is supported, modifying the policy can have unexpected side effects and is not encouraged.

supports custom API access policies through parameters in TripleO Heat Templates. To enable this feature, you need to use some parameters to enable the custom policies on the services you want.

Creating an environment file and adding the following arguments to your openstack overcloud deploy command will do the trick:

$ cat ~/nova-policies.yaml
parameter_defaults:
  NovaApiPolicies: { nova-context_is_admin: { key: 'compute:get_all', value: '' } }

-e nova-policies.yaml

In this example, we allow anyone to list Nova instances, which is very insecure but can be done with this feature.