After sometime I created a recipe to configure the Openshift SNO in my lab with libvirt virtualization.
I’m intend to create an Ansible playbook project in the future.
Read morAfter sometime I created a recipe to configure the Openshift SNO in my lab with libvirt virtualization.
I’m intend to create an Ansible playbook project in the future.
Read morVelero is a tool that enables backup and restore Kubernetes cluster resources and persistent volumes. It simplifies the task of taking backups/restores, migrating resources to other clusters, and replication of clusters.
Kubernetes Pods with persistent volumes are important for data persistence because containers are being created and destroyed, depending on the load and on the specifications of the developers. Pods and containers can self-heal and replicate. They are, in essence, ephemeral.
Before start this post I’ve been posted some hands on and conceptual docs to understand since the beginning this solution.
Ceph is open source, software-defined storage maintained by RedHat. It’s capable of block, object, and file storage. The clusters of Ceph are designed in order to run on any hardware with the help of an algorithm called CRUSH (Controlled Replication Under Scalable Hashing). This algorithm ensures that all the data is properly distributed across the cluster and data quickly without any constraints. Replication, Thin provisioning, Snapshots are the key features of the Ceph storage.
There are good reasons for using Ceph as IaaS and PaaS storage :
Site : https://ceph.io/
Continue reading “Ceph : An overview”In this post will be presented how to deploy the environment by ceph ansible.
An ansible deployment is the most standardized and official format among the main vendors using Ceph. Ex: Suse, Oracle and Redhat.
The installation presented in this document will use a similar flow for deploying:
If you would like to get an overview about Ceph these document could help you.
Continue reading “Ceph : Cluster deployment”Kubesray is a group of Ansible playbooks for deployment a Kubernetes cluster in most metal and most clouds.
Official site: https://kubespray.io/
As described by project git repository :
My intention for this lab is show a deployment on premisses environment, so if you found this post directly without had a Kubernetes background maybe this overview can help you.
Continue reading “Kubernetes : Deploy a production ready cluster with Ansible.”Kubernetes is a powerful open-source system, initially developed by Google, for managing containerized applications in a clustered environment. It aims to provide better ways of managing related, distributed components and services across varied infrastructure.
We talk about system architecture and how it solves problems with use cases to handle containerized deployments and scaling.
Kubernetes official site : https://kubernetes.io/
Continue reading “Kubernetes: An Overview”