#
# Copyright (C) 2014 Catalyst IT Limited.
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.
#
# Author: Ricardo Rocha <ricardo@catalyst.net.nz>
#
# == Define: ceph::rgw::keystone
#
# Configures keystone auth/authz for the ceph radosgw.
#
### == Name
# # The RGW id. An alphanumeric string uniquely identifying the RGW.
# ( example: radosgw.gateway )
#
### == Parameters
#
# [*rgw_keystone_admin_domain*]
#   (Required) The name of OpenStack domain with admin
#   privilege when using OpenStack Identity API v3.
#
# [*rgw_keystone_admin_project*]
#   (Optional) The name of OpenStack project with admin
#   privilege when using OpenStack Identity API v3
#
# [*rgw_keystone_admin_user*]
#   (Required) The user name of OpenStack tenant with admin
#   privilege (Service Tenant).
#
# [*rgw_keystone_admin_password*]
#   (Required) The password for OpenStack admin user.
#
# [*rgw_keystone_url*]
#   (Optional) The internal or admin url for keystone.
#   Defaults to 'http://127.0.0.1:5000'
#
# [*rgw_keystone_accepted_roles*]
#   (Optional) Roles to accept from keystone.
#   Comma separated list of roles.
#   Defaults to 'member'
#
# [*rgw_keystone_accepted_admin_roles*]
#   (Optional) List of roles allowing user to gain admin privileges.
#   Defaults to 'admin'
#
# [*rgw_keystone_token_cache_size*]
#   (Optional) How many tokens to keep cached.
#   Defaults to 500
#
# [*rgw_s3_auth_use_keystone*]
#   (Optional) Whether to enable keystone auth for S3.
#   Defaults to true
#
# [*rgw_keystone_implicit_tenants*]
#   (Optional) Set 'true' for a private tenant for each user.
#   Defaults to true
#
define ceph::rgw::keystone (
  $rgw_keystone_admin_domain,
  $rgw_keystone_admin_project,
  $rgw_keystone_admin_user,
  $rgw_keystone_admin_password,
  $rgw_keystone_url                  = 'http://127.0.0.1:5000',
  $rgw_keystone_accepted_roles       = 'member',
  $rgw_keystone_accepted_admin_roles = 'admin',
  $rgw_keystone_token_cache_size     = 500,
  $rgw_s3_auth_use_keystone          = true,
  $rgw_keystone_implicit_tenants     = true,
) {

  unless $name =~ /^radosgw\..+/ {
    fail("Define name must be started with 'radosgw.'")
  }

  ceph_config {
    "client.${name}/rgw_keystone_url":                  value => $rgw_keystone_url;
    "client.${name}/rgw_keystone_accepted_roles":       value => join(any2array($rgw_keystone_accepted_roles), ',');
    "client.${name}/rgw_keystone_accepted_admin_roles": value => join(any2array($rgw_keystone_accepted_admin_roles), ',');
    "client.${name}/rgw_keystone_token_cache_size":     value => $rgw_keystone_token_cache_size;
    "client.${name}/rgw_s3_auth_use_keystone":          value => $rgw_s3_auth_use_keystone;
    "client.${name}/rgw_keystone_implicit_tenants":     value => $rgw_keystone_implicit_tenants;
  }

  ceph_config {
    "client.${name}/rgw_keystone_api_version":    value => 3;
    "client.${name}/rgw_keystone_admin_domain":   value => $rgw_keystone_admin_domain;
    "client.${name}/rgw_keystone_admin_project":  value => $rgw_keystone_admin_project;
    "client.${name}/rgw_keystone_admin_user":     value => $rgw_keystone_admin_user;
    "client.${name}/rgw_keystone_admin_password": value => $rgw_keystone_admin_password, secret => true;
  }
}