1a885ddd1f
Recently we updated our test jobs so that all of them use the `deploy-env` Ansible role which utilizes the Kubeadm to deploy the test Kubernetes cluster. The role works for both multi-node and single-node environments. Although the deployment of Kubernetes itself is out of scope of Openstack-Helm, we recommen using this role to deploy test and development Kubernetes clusters. So at the moment there is no need to provide different sets of tools single-node and multi-node test envs. Now this is a matter of the Ansible inventory file. Also the deployment procedure of OpenStack on top of Kubernetes using Helm is the same for multi-node and single-node clusters because it only relies on the Kubernetes API. We will be improving the `deploy-env` role even futher and we will be cleaning up the deployment scripts and the documentation so to provide a clear experience for the Openstack-Helm users. Change-Id: I70236c4a2b870b52d2b01f65b1ef9b9518646964
55 lines
2.4 KiB
ReStructuredText
55 lines
2.4 KiB
ReStructuredText
Deploy OpenStack backend
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OpenStack is a cloud computing platform that consists of a variety of
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services, and many of these services rely on backend services like RabbitMQ,
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MariaDB, and Memcached for their proper functioning. These backend services
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play crucial roles in OpenStack's architecture.
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RabbitMQ
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~~~~~~~~
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RabbitMQ is a message broker that is often used in OpenStack to handle
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messaging between different components and services. It helps in managing
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communication and coordination between various parts of the OpenStack
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infrastructure. Services like Nova (compute), Neutron (networking), and
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Cinder (block storage) use RabbitMQ to exchange messages and ensure
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proper orchestration.
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MariaDB
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~~~~~~~
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Database services like MariaDB are used as the backend database for several
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OpenStack services. These databases store critical information such as user
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credentials, service configurations, and data related to instances, networks,
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and volumes. Services like Keystone (identity), Nova, Glance (image), and
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Cinder rely on MariaDB for data storage.
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Memcached
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~~~~~~~~~
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Memcached is a distributed memory object caching system that is often used
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in OpenStack to improve performance and reduce database load. OpenStack
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services cache frequently accessed data in Memcached, which helps in faster
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data retrieval and reduces the load on the database backend. Services like
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Keystone and Nova can benefit from Memcached for caching.
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Deployment
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----------
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The following scripts `rabbitmq.sh`_, `mariadb.sh`_, `memcached.sh`_ can be used to
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deploy the backend services.
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.. code-block:: bash
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cd ~/osh/openstack-helm
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./tools/deployment/component/common/rabbitmq.sh
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./tools/deployment/component/common/mariadb.sh
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./tools/deployment/component/common/memcached.sh
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.. note::
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These scripts use Helm charts from the `openstack-helm-infra`_ repository. We assume
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this repo is cloned to the `~/osh` directory. See this :doc:`section </install/before_deployment>`.
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.. _rabbitmq.sh: https://opendev.org/openstack/openstack-helm/src/branch/master/tools/deployment/component/common/rabbitmq.sh
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.. _mariadb.sh: https://opendev.org/openstack/openstack-helm/src/branch/master/tools/deployment/component/common/mariadb.sh
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.. _memcached.sh: https://opendev.org/openstack/openstack-helm/src/branch/master/tools/deployment/component/common/memcached.sh
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.. _openstack-helm-infra: https://opendev.org/openstack/openstack-helm-infra.git
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