fixing file name, adding short perex

topics/compute/openstack/docs/new-generation.md → topics/compute/openstack/docs/migration-to-g2-openstack-cloud.md

-# New generation of OpenStack cloud services
+# Migration to the new generation of OpenStack cloud services
+e-INFRA CZ is upgrading its cloud service to improve operational efficiency and reliability. The new architecture spans over Brno and Ostrava datacenters. The Brno site will need to be migrated, staring during Q1/2024. The process involves gradually transitioning user workloads, ensuring minimal disruption and close cooperation with principal investigators
+
 ## Introduction
 The cloud, which is used daily by approximately 250 e-INFRA CZ users supported by the flexibility of the cloud and performance of the HPC system's broad spectrum of research activities in the Czech Republic. The cloud services in current generation was introduced on the network of Masaryk University in 2017 and was built on more than 300 physical machines. The design of the cloud service was at that time very smart. We have utilized the power of “Infrastructure as a code” principle, having all configuration in git repositories. Thanks to the IaC it is easy to track changes to the infrastructure, ensure it’s consistency and integrity, do team reviews and run continuous integration and deployment for automatic rollout of changes to the infrastructure. Utilization of this principle is widely used by software developers, where these practices are much easier to implement. The time has passed and the technologies we used to use to manage the cloud system, which was our own set of Puppet and Ansible scripts are now a bit deprecated, and there are better alternatives out there, supported by a broader community. These new tools do the work in a more efficient manner. 
 

topics/compute/openstack/mkdocs.yml

@@ -3,7 +3,7 @@ docs_dir: ./docs/
 
 nav:
   - index.md
-  - new-generation.md
+  - migration-to-g2-openstack-cloud.md
   - Getting started:
     # - getting-started/creating-project.md
     - getting-started/creating-first-infrastructure.md