Update to use oslo.messaging service for RPC and Notify

This introduces oslo.messaging variables that define the RPC and
Notify transports for the OpenStack services. These parameters replace
the rabbitmq values and are used to generate the messaging
transport_url for the service. The association of the messaging
backend server to the oslo.messaging services will then be transparent
to the trove service.

This patch:
* Add oslo.messaging variables for RPC and Notify to defaults
* Update transport_url generation (add for notification)
* Add oslo.messaging to tests inventory
* Update tests
* Update docs
* Update extras
* Add release note

Change-Id: Ia01317343ae6fbc790d64b5ba282c8c069750d45

defaults/main.yml

@@ -119,14 +119,26 @@ trove_galera_use_ssl: "{{ galera_use_ssl | default(False) }}"
 trove_galera_ssl_ca_cert: "{{ galera_ssl_ca_cert | default('/etc/ssl/certs/galera-ca.pem') }}"
 trove_galera_connection_string: "mysql+pymysql://{{ trove_galera_user}}:{{ trove_galera_password }}@{{ trove_galera_address }}/{{ trove_galera_database_name }}?charset=utf8{% if trove_galera_use_ssl | bool %}&ssl_ca={{ trove_galera_ssl_ca_cert }}{% endif %}"
 
+## Oslo Messaging vars
+# RPC
+trove_oslomsg_rpc_transport: rabbit
+trove_oslomsg_rpc_servers: "{{ rabbitmq_servers }}"
+trove_oslomsg_rpc_port: 5672
+trove_oslomsg_rpc_use_ssl: False
+trove_oslomsg_rpc_userid: trove
+trove_oslomsg_rpc_vhost: /trove
+
+# Notify
+trove_oslomsg_notify_transport: rabbit
+trove_oslomsg_notify_servers: "{{ rabbitmq_servers }}"
+trove_oslomsg_notify_port: 5672
+trove_oslomsg_notify_use_ssl: False
+trove_oslomsg_notify_userid: trove
+trove_oslomsg_notify_vhost: /trove
+
 # Rabbit vars
 trove_control_exchange: trove
 trove_rabbit_notification_topic: notification
-trove_rabbitmq_userid: trove
-trove_rabbitmq_vhost: /trove
-trove_rabbitmq_use_ssl: False
-trove_rabbitmq_port: 5672
-trove_rabbitmq_servers: "{{ rabbitmq_servers }}"
 
 # The trove guest agent in the deployed DB VMs need access to OpenStack services (keystone, swift, etc)
 # and also to rabbitmq. The way it gets access (networking) these services may differ.
@@ -141,8 +153,10 @@ trove_provider_network: "{{ provider_networks|map(attribute='network')|selectatt
 trove_provider_ip_from_q: "{{ trove_provider_network['ip_from_q'] }}"
 # The name of the network address pool
 trove_container_net_name: "{{ trove_provider_ip_from_q }}_address"
-trove_guest_rabbitmq_servers: "{% for host in groups[rabbitmq_host_group] %}{{ hostvars[host]['container_networks'][trove_container_net_name]['address'] }}{% if not loop.last %},{% endif %}{% endfor %}"
+trove_guest_oslomsg_rpc_servers: "{% for host in groups[oslomsg_rpc_host_group] %}{{ hostvars[host]['container_networks'][trove_container_net_name]['address'] }}{% if not loop.last %},{% endif %}{% endfor %}"
-trove_guest_rabbitmq_use_ssl: "{{ trove_rabbitmq_use_ssl }}"
+trove_guest_oslomsg_rpc_use_ssl: "{{ trove_oslomsg_rpc_use_ssl }}"
+trove_guest_oslomsg_notify_servers: "{% for host in groups[oslomsg_notify_host_group] %}{{ hostvars[host]['container_networks'][trove_container_net_name]['address'] }}{% if not loop.last %},{% endif %}{% endfor %}"
+trove_guest_oslomsg_notify_use_ssl: "{{ trove_oslomsg_notify_use_ssl }}"
 # For OpenStack services that have public, admin, and internal access, use the public ones for the guest VMs.
 trove_guest_auth_url: "{{ keystone_service_publicurl }}"
 trove_guest_swift_url: "{{ trove_service_publicuri_proto }}://{{ external_lb_vip_address }}:{{ swift_proxy_port }}/v1/AUTH_"
@@ -168,7 +182,8 @@ trove_service_net_endpoint_type: internal
 trove_enable_secure_rpc_messaging: "True"
 trove_required_secrets:
   - trove_galera_password
-  - trove_rabbitmq_password
+  - trove_oslomsg_rpc_password
+  - trove_oslomsg_notify_password
   - trove_service_password
   - trove_admin_user_password
   - trove_taskmanager_rpc_encr_key

doc/source/configure-trove.rst

@@ -10,15 +10,15 @@ Configuring Trove
 
 Trove provides DBaaS to an OpenStack deployment. It deploys guest VMs that
 provide the desired DB for use by the end consumer. The trove guest VMs need
-connectivity back to the trove services via RPC (rabbitmq) and the OpenStack
+connectivity back to the trove services via RPC (oslo.messaging) and the
-services. The way these guest VM get access to those services could be via
+OpenStack services. The way these guest VM get access to those services could be
-internal networking (in the case of rabbitmq) or via public interfaces (in the
+via internal networking (in the case of oslo.messaging) or via public interfaces
-case of OpenStack services). For the example configuration, we'll designate
+(in the case of OpenStack services). For the example configuration, we'll
-a provider network as the network for trove to provision on each guest VM. The
+designate a provider network as the network for trove to provision on each guest
-guest can then connect to rabbitmq via this network and to the OpenStack
+VM. The guest can then connect to oslo.messaging via this network and to the
-services externally. Optionally, the guest VMs could use the internal network
+OpenStack services externally. Optionally, the guest VMs could use the internal
-to access OpenStack services, but that would require more containers being
+network to access OpenStack services, but that would require more containers
-bound to this network.
+being bound to this network.
 
 The deployment configuration outlined below may not be appropriate for
 production environments. Review this very carefully with your own security
@@ -45,14 +45,14 @@ An example entry into ``openstack_user_config.yml`` is shown below:
         net_name: "dbaas-mgmt"
         group_binds:
           - neutron_linuxbridge_agent
-          - rabbitmq
+          - oslomsg_rpc
 
 Make sure to modify the other entries in this file as well.
 
 The ``net_name`` will be the physical network that is specified when creating
 the neutron network. The default value of ``dbaas-mgmt`` is also used to
-lookup the addresses of the rabbitmq container. If the default is not used then
+lookup the addresses of the rpc messaging container. If the default is not used
-some variables in ``defaults\main.yml`` will need to be overwritten.
+then some variables in ``defaults\main.yml`` will need to be overwritten.
 
 By default this role will not create the neutron network automaticaly. However,
 the default values can be changed to create the neutron network. See the

releasenotes/notes/oslo-messaging-backends-65287400dba86fce.yaml

@@ -0,0 +1,20 @@
+---
+features:
+  - Support separate oslo.messaging services for RPC and Notifications
+    to enable operation of separate and different messaging backend servers.
+deprecations:
+  - |
+    The rabbitmq server parameters have been replaced by corresponding
+    oslo.messaging RPC and Notify parameters in order to abstract the
+    messaging service from the actual backend server deployment.
+    - trove_oslomsg_rpc_servers replaces trove_rabbitmq_servers
+    - trove_oslomsg_rpc_port replaces trove_rabbitmq_port
+    - trove_oslomsg_rpc_use_ssl replaces trove_rabbitmq_use_ssl
+    - trove_oslomsg_rpc_userid replaces trove_rabbitmq_userid
+    - trove_oslomsg_rpc_vhost replaces trove_rabbitmq_vhost
+    - added trove_oslomsg_notify_servers
+    - added trove_oslomsg_notify_port
+    - added trove_oslomsg_notify_use_ssl
+    - added trove_oslomsg_notify_userid
+    - added trove_oslomsg_notify_vhost
+    - added trove_oslomsg_notify_password

templates/trove-conductor.conf.j2

@@ -5,7 +5,7 @@ debug = {{ debug }}
 trove_auth_url = {{ trove_auth_url }}
 conductor_manager = trove.conductor.manager.Manager
 trove_conductor_workers={{ trove_conductor_workers }}
-transport_url = rabbit://{% for host in trove_rabbitmq_servers.split(',') %}{{ trove_rabbitmq_userid }}:{{ trove_rabbitmq_password }}@{{ host }}:{{ trove_rabbitmq_port }}{% if not loop.last %},{% else %}/{{ trove_rabbitmq_vhost }}{% endif %}{% endfor %}
+transport_url = {{ trove_oslomsg_rpc_transport }}://{% for host in trove_oslomsg_rpc_servers.split(',') %}{{ trove_oslomsg_rpc_userid }}:{{ trove_oslomsg_rpc_password }}@{{ host }}:{{ trove_oslomsg_rpc_port }}{% if not loop.last %},{% else %}/{{ trove_oslomsg_rpc_vhost }}{% endif %}{% endfor %}
 
 {# There must be a blank line above or the following line will be appended to the previous. #}
 control_exchange = {{ trove_control_exchange }}
@@ -21,4 +21,7 @@ enabled = {{ trove_profiler_enabled }}
 connection = "{{ trove_galera_connection_string }}"
 
 [oslo_messaging_rabbit]
-ssl={{ trove_rabbitmq_use_ssl }}
+ssl={{ trove_oslomsg_rpc_use_ssl }}
+
+[oslo_messaging_notifications]
+transport_url = {{ trove_oslomsg_notify_transport }}://{% for host in trove_oslomsg_notify_servers.split(',') %}{{ trove_oslomsg_notify_userid }}:{{ trove_oslomsg_notify_password }}@{{ host }}:{{ trove_oslomsg_notify_port }}{% if not loop.last %},{% else %}/{{ trove_oslomsg_notify_vhost }}{% endif %}{% endfor %}

templates/trove-guestagent.conf.j2

@@ -6,7 +6,7 @@ nova_proxy_admin_user = {{ trove_service_user_name }}
 nova_proxy_admin_pass = {{ trove_service_password }}
 nova_proxy_admin_tenant_name = {{ trove_service_project_name }}
 
-transport_url = rabbit://{% for host in trove_rabbitmq_servers.split(',') %}{{ trove_rabbitmq_userid }}:{{ trove_rabbitmq_password }}@{{ host }}:{{ trove_rabbitmq_port }}{% if not loop.last %},{% else %}/{{ trove_rabbitmq_vhost }}{% endif %}{% endfor %}
+transport_url = {{ trove_oslomsg_rpc_transport }}://{% for host in trove_oslomsg_rpc_servers.split(',') %}{{ trove_oslomsg_rpc_userid }}:{{ trove_oslomsg_rpc_password }}@{{ host }}:{{ trove_oslomsg_rpc_port }}{% if not loop.last %},{% else %}/{{ trove_oslomsg_rpc_vhost }}{% endif %}{% endfor %}
 
 {% if trove_swift_enabled is defined %}
 swift_url = {{ trove_guest_swift_url }}
@@ -56,7 +56,10 @@ log_file = trove-guestagent.log
 [oslo_messaging_rabbit]
 # Connect over SSL for RabbitMQ. (boolean value)
 # Deprecated group/name - [DEFAULT]/rabbit_use_ssl
-ssl = {{ trove_guest_rabbitmq_use_ssl }}
+ssl = {{ trove_guest_oslomsg_rpc_use_ssl }}
+
+[oslo_messaging_notifications]
+transport_url = {{ trove_oslomsg_notify_transport }}://{% for host in trove_oslomsg_notify_servers.split(',') %}{{ trove_oslomsg_notify_userid }}:{{ trove_oslomsg_notify_password }}@{{ host }}:{{ trove_oslomsg_notify_port }}{% if not loop.last %},{% else %}/{{ trove_oslomsg_notify_vhost }}{% endif %}{% endfor %}
 
 # ========== Datastore Specific Configuration Options ==========
 

templates/trove-taskmanager.conf.j2

@@ -3,7 +3,7 @@
 [DEFAULT]
 debug = {{ debug }}
 update_status_on_fail = True
-transport_url = rabbit://{% for host in trove_rabbitmq_servers.split(',') %}{{ trove_rabbitmq_userid }}:{{ trove_rabbitmq_password }}@{{ host }}:{{ trove_rabbitmq_port }}{% if not loop.last %},{% else %}/{{ trove_rabbitmq_vhost }}{% endif %}{% endfor %}
+transport_url = {{ trove_oslomsg_rpc_transport }}://{% for host in trove_oslomsg_rpc_servers.split(',') %}{{ trove_oslomsg_rpc_userid }}:{{ trove_oslomsg_rpc_password }}@{{ host }}:{{ trove_oslomsg_rpc_port }}{% if not loop.last %},{% else %}/{{ trove_oslomsg_rpc_vhost }}{% endif %}{% endfor %}
 
 {# There must be a blank line above or the following line will be appended to the previous. #}
 control_exchange = {{ trove_control_exchange }}
@@ -100,6 +100,9 @@ enabled = {{ trove_profiler_enabled }}
 #trace_sqlalchemy = True
 
 [oslo_messaging_rabbit]
-ssl={{ trove_rabbitmq_use_ssl }}
+ssl={{ trove_oslomsg_rpc_use_ssl }}
+
+[oslo_messaging_notifications]
+transport_url = {{ trove_oslomsg_notify_transport }}://{% for host in trove_oslomsg_notify_servers.split(',') %}{{ trove_oslomsg_notify_userid }}:{{ trove_oslomsg_notify_password }}@{{ host }}:{{ trove_oslomsg_notify_port }}{% if not loop.last %},{% else %}/{{ trove_oslomsg_notify_vhost }}{% endif %}{% endfor %}
 
 {% include 'include_db.j2' %}

templates/trove.conf.j2

@@ -4,7 +4,7 @@ debug = {{ debug }}
 bind_host = {{ trove_service_host }}
 bind_port = {{ trove_service_port }}
 trove_api_workers={{ trove_api_workers }}
-transport_url = rabbit://{% for host in trove_rabbitmq_servers.split(',') %}{{ trove_rabbitmq_userid }}:{{ trove_rabbitmq_password }}@{{ host }}:{{ trove_rabbitmq_port }}{% if not loop.last %},{% else %}/{{ trove_rabbitmq_vhost }}{% endif %}{% endfor %}
+transport_url = {{ trove_oslomsg_rpc_transport }}://{% for host in trove_oslomsg_rpc_servers.split(',') %}{{ trove_oslomsg_rpc_userid }}:{{ trove_oslomsg_rpc_password }}@{{ host }}:{{ trove_oslomsg_rpc_port }}{% if not loop.last %},{% else %}/{{ trove_oslomsg_rpc_vhost }}{% endif %}{% endfor %}
 
 {# There must be a blank line above or the following line will be appended to the previous. #}
 control_exchange = {{ trove_control_exchange }}
@@ -116,6 +116,9 @@ enabled = {{ trove_profiler_enabled }}
 #ca_file = /path/to/ca_file
 
 [oslo_messaging_rabbit]
-ssl = {{ trove_rabbitmq_use_ssl }}
+ssl = {{ trove_oslomsg_rpc_use_ssl }}
+
+[oslo_messaging_notifications]
+transport_url = {{ trove_oslomsg_notify_transport }}://{% for host in trove_oslomsg_notify_servers.split(',') %}{{ trove_oslomsg_notify_userid }}:{{ trove_oslomsg_notify_password }}@{{ host }}:{{ trove_oslomsg_notify_port }}{% if not loop.last %},{% else %}/{{ trove_oslomsg_notify_vhost }}{% endif %}{% endfor %}
 
 {% include 'include_db.j2' %}

tests/inventory

@@ -7,6 +7,12 @@ openstack1
 infra1
 openstack1
 
+[oslomsg_rpc_all]
+infra1
+
+[oslomsg_notify_all]
+infra1
+
 [rabbitmq_all]
 infra1
 

tests/os_trove-overrides.yml

@@ -18,13 +18,20 @@
 
 trove_developer_mode: True
 trove_galera_password: "secrete"
-trove_rabbitmq_port: "{{ rabbitmq_port }}"
+trove_oslomsg_rpc_port: "{{ oslomsg_rpc_port }}"
-trove_rabbitmq_servers: "{{ rabbitmq_servers }}"
+trove_oslomsg_rpc_servers: "{ oslomsg_rpc_servers }}"
-trove_rabbitmq_use_ssl: "{{ rabbitmq_use_ssl }}"
+trove_oslomsg_rpc_use_ssl: "{{ oslomsg_rpc_use_ssl }}"
-trove_rabbitmq_password: "secrete"
+trove_oslomsg_rpc_password: "secrete"
-trove_rabbitmq_userid: trove
+trove_oslomsg_rpc_userid: trove
-trove_rabbitmq_vhost: /trove
+trove_oslomsg_rpc_vhost: /trove
-trove_guest_rabbitmq_servers: "{{ trove_rabbitmq_servers }}"
+trove_guest_oslomsg_rpc_servers: "{{ trove_oslomsg_rpc_servers }}"
+trove_oslomsg_notify_port: "{{ oslomsg_notify_port }}"
+trove_oslomsg_notify_servers: "{ oslomsg_notify_servers }}"
+trove_oslomsg_notify_use_ssl: "{{ oslomsg_notify_use_ssl }}"
+trove_oslomsg_notify_password: "secrete"
+trove_oslomsg_notify_userid: trove
+trove_oslomsg_notify_vhost: /trove
+trove_guest_oslomsg_notify_servers: "{{ trove_oslomsg_notify_servers }}"
 trove_guest_auth_url: "{{ trove_auth_url }}"
 trove_requirements_git_install_branch: master
 trove_service_password: "secrete"

tests/test-install-trove.yml

@@ -21,10 +21,13 @@
   user: root
   gather_facts: true
   pre_tasks:
-    - include: common/ensure-rabbitmq.yml
+    - include: common/ensure-oslomsg.yml
-      vhost_name: "{{ trove_rabbitmq_vhost }}"
+      rpc_vhost: "{{ trove_oslomsg_rpc_vhost }}"
-      user_name: "{{ trove_rabbitmq_userid }}"
+      rpc_user: "{{ trove_oslomsg_rpc_userid }}"
-      user_password: "{{ trove_rabbitmq_password }}"
+      rpc_password: "{{ trove_oslomsg_rpc_password }}"
+      notify_vhost: "{{ trove_oslomsg_notify_vhost }}"
+      notify_user: "{{ trove_oslomsg_notify_userid }}"
+      notify_password: "{{ trove_oslomsg_notify_password }}"
   roles:
     - role: "os_trove"
   vars_files: