Welcome to YAUB - Yet Another Useless Blog
The articles in this blog shall help to easily test and understand specific issues so they can be reproduced and tested on local environments.
You can find the most recent posts on this site or walk through the different categories via the left navigation.
Recent Posts
Automated ETCD Backup
Securing ETCD is one of the major Day-2 tasks for a Kubernetes cluster. This article will explain how to create a backup using OpenShift Cronjob.
Working with Environments
Imagine you have one OpenShift cluster and you would like to create 2 or more environments inside this cluster, but also separate them and force the environments to specific nodes, or use specific inbound routers. All this can be achieved using labels, IngressControllers and so on. The following article will guide you to set up dedicated compute nodes for infrastructure, development and test environments as well as the creation of IngressController which are bound to the appropriate nodes.
Advanced Cluster Security - Authentication
Red Hat Advanced Cluster Security (RHACS) Central is installed with one administrator user by default. Typically, customers request an integration with existing Identity Provider(s) (IDP). RHACS offers different options for such integration. In this article 2 IDPs will be configured as an example. First OpenShift Auth and second Red Hat Single Sign On (RHSSO) based on Keycloak
Ansible Style Guide
You should always follow the Best Practices and Ansible Lint rules defined by the Ansible documentation when developing playbooks.
Although very basic, the Best Practices document gives a few guidelines to be able to carry out well-structured playbooks and roles, it contains recommendations that evolve with the project, so it is recommended to review it regularly. It is advisable to review the organization of content in Ansible.
The Ansible Lint documentation shows us through this tool the syntax rules that will be checked in the testing of roles and playbooks, the rules that will be checked are indicated in this document in their respective section.
Stumbling into Azure Part II: Setting up a private ARO cluster
Automation Controller and LDAP Authentication
The following article shall quickly, without huge background information, deploy an Identity Management Server (based on FreeIPA) and connect this IDM to an existing Automation Controller so authentication can be tested and verified based on LDAP.
Stumbling into Azure Part I: Building a site-to-site VPN tunnel for testing
Stumbling into Quay: Upgrading from 3.3 to 3.4 with the quay-operator
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