diff options
Diffstat (limited to 'docs/installationprocedure')
| -rw-r--r-- | docs/installationprocedure/architecture.rst | 58 | ||||
| -rw-r--r-- | docs/installationprocedure/baremetal.rst | 3 | ||||
| -rw-r--r-- | docs/installationprocedure/references.rst | 2 |
3 files changed, 62 insertions, 1 deletions
diff --git a/docs/installationprocedure/architecture.rst b/docs/installationprocedure/architecture.rst index c63da27c..f1861d0a 100644 --- a/docs/installationprocedure/architecture.rst +++ b/docs/installationprocedure/architecture.rst @@ -23,6 +23,64 @@ The overcloud is OPNFV. Configuration will be passed into undercloud and the undercloud will use OpenStack's orchestration component, named Heat, to execute a deployment that will provision the target OPNFV nodes. +Apex High Availability Architecture +=================================== + +Undercloud +---------- + +The undercloud is not Highly Available. End users do not depend on the +underloud. It is only for management purposes. + +Overcloud +--------- + +Apex will deploy three control nodes in an HA deployment. Each of these nodes +will run the following services: + +- Stateless OpenStack services +- MariaDB / Galera +- RabbitMQ +- OpenDaylight +- HA Proxy +- Pacemaker & VIPs + +Stateless OpenStack services + All running statesless OpenStack services are load balanced by HA Proxy. + Pacemaker monitors the services and ensures that they are running. + +Stateful OpenStack services + All running stateful OpenStack services are load balanced by HA Proxy. + They are monitored by pacemaker in an active/passive failover configuration. + +MariaDB / Galera + The MariaDB database is replicated across the control nodes using Galera. + Pacemaker is responsible for a proper start up of the Galera cluster. HA + Proxy provides and active/passive failover methodology to connections to the + database. + +RabbitMQ + The message bus is managed by Pacemaker to ensure proper start up and + establishment of clustering across cluster members. + +OpenDaylight + OpenDaylight is currently installed on all three control nodes but only + started on the first control node. OpenDaylight's HA capabilities are not yet + mature enough to be enabled. + +HA Proxy + HA Proxy is monitored by Pacemaker to ensure it is running across all nodes + and available to balance connections. + +Pacemaker & VIPs + Pacemaker has relationships and restraints setup to ensure proper service + start up order and Virtual IPs associated with specific services are running + on the proper host. + +VM Migration is configured and VMs can be evacuated as needed or as invoked +by tools such as heat as part of a monitored stack deployment in the overcloud. + + OPNFV Scenario Architecture =========================== diff --git a/docs/installationprocedure/baremetal.rst b/docs/installationprocedure/baremetal.rst index eb48a289..d41c77e0 100644 --- a/docs/installationprocedure/baremetal.rst +++ b/docs/installationprocedure/baremetal.rst @@ -205,7 +205,8 @@ Edit the 2 settings files in /etc/opnfv-apex/. These files have comments to help you customize them. 1. deploy_settings.yaml - This file includes basic configuration options deployment. + This file includes basic configuration options deployment, and also documents + all available options. Alternatively, there are pre-built deploy_settings files available in (``/etc/opnfv-apex/``). These files are named with the naming convention os-sdn_controller-enabled_feature-[no]ha.yaml. These files can be used in diff --git a/docs/installationprocedure/references.rst b/docs/installationprocedure/references.rst index 5ff2a542..a63a8421 100644 --- a/docs/installationprocedure/references.rst +++ b/docs/installationprocedure/references.rst @@ -18,6 +18,8 @@ OPNFV `OPNFV Apex project page <https://wiki.opnfv.org/apex>`_ +`OPNFV Apex release notes <http://artifacts.opnfv.org/apex/colorado/docs/releasenotes/release-notes.html#references>`_ + OpenStack --------- |