Create Octavia policy roles and legacy admin-owner rules

Octavia has introduced new roles for more granular access policies.
This will create those keystone roles and if the legacy parameter
is set create admin or user rules which are similar what Neutron
allowed before.

Change-Id: I2d6b7278d7d4af2669cba7ac760dae0bc8e6f183
(cherry picked from commit 03767ae49c47e70bbd0fef2d4c655cba638507f9)

defaults/main.yml

@@ -16,7 +16,7 @@
 ## Verbosity Options
 debug: False
 
-## Octavia stnadalone (v2) experimental
+## Octavia standalone (v2) experimental
 octavia_v2: false
 
 ## Activate Octavia V1 API
@@ -25,6 +25,13 @@ octavia_v1: True
 ## Allow TLS listener
 octavia_tls_listener_enabled: True
 
+# Legacy policy disables the requirement for load-balancer service users to
+# have one of the load-balancer:* roles.  It provides a similar policy to
+# legacy OpenStack policies where any user or admin has access to load-balancer
+# resources that they own.  Users with the admin role has access to all
+# load-balancer resources, whether they own them or not.
+octavia_legacy_policy: False
+
 # Set the package install state for distribution and pip packages
 # Options are 'present' and 'latest'
 octavia_package_state: "latest"

tasks/main.yml

@@ -82,6 +82,11 @@
   tags:
     - octavia-install
 
+- include: octavia_policy.yml
+  tags:
+    - octavia-install
+    - octavia-config
+
 
 - name: Flush handlers
   meta: flush_handlers

tasks/octavia_policy.yml

@@ -0,0 +1,51 @@
+---
+# Copyright 2017, Rackspace US, Inc.
+#
+# 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.
+
+- name: Create load-balancer_observer role
+  keystone:
+    command: "ensure_role"
+    endpoint: "{{ keystone_service_adminurl }}"
+    login_user: "{{ keystone_admin_user_name }}"
+    login_password: "{{ keystone_auth_admin_password }}"
+    login_project_name: "{{ keystone_admin_tenant_name }}"
+    region_name: "{{ octavia_service_region }}"
+    service_name: "{{ octavia_service_name }}"
+    service_type: "{{ octavia_service_type }}"
+    insecure: "{{ keystone_service_adminuri_insecure }}"
+    role_name: "{{ item }}"
+  register: add_role
+  until: add_role|success
+  retries: 5
+  delay: 10
+  no_log: True
+  with_items:
+    - load-balancer_observer
+    - load-balancer_global_observer
+    - load-balancer_member
+    - load-balancer_admin
+    - load-balancer_quota_admin
+
+- name: Set legacy role policies
+  config_template:
+    src: policy.json.j2
+    dest: /etc/octavia/policy.json
+    owner: "{{ octavia_system_user_name }}"
+    group: "{{ octavia_system_group_name }}"
+    mode: "0640"
+    config_overrides: "{{ octavia_policy_overrides }}"
+    config_type: "json"
+  notify:
+    - Restart octavia services
+  when: octavia_legacy_policy

templates/policy.json.j2

@@ -0,0 +1,11 @@
+{
+    "context_is_admin": "role:admin or role:load-balancer_admin",
+    "admin_or_owner": "is_admin:True or project_id:%(project_id)s",
+
+    "load-balancer:read": "rule:admin_or_owner",
+    "load-balancer:read-global": "is_admin:True",
+    "load-balancer:write": "rule:admin_or_owner",
+    "load-balancer:read-quota": "rule:admin_or_owner",
+    "load-balancer:read-quota-global": "is_admin:True",
+    "load-balancer:write-quota": "is_admin:True"
+}

tests/os_octavia-overrides.yml

@@ -53,6 +53,7 @@ octavia_service_project_domain_id: default
 octavia_service_user_domain_id: default
 octavia_service_user_name: "octavia"
 octavia_ansible_endpoint_type: "internal"
+octavia_legacy_policy: True
 
 
 octavia_health_hmac_key: secrete