Red Hat - Chronicles of Technology

Red Hat

A collection of 12 posts

Ansible: Ad-Hoc Shell Module

Ansible: Ad-Hoc Shell Module

I shared a tip on handling missing files in an Ansible playbook some time ago. I have now tried to do the same with ad hoc command execution. Here is how you can use extra module arguments.

Installing the npx RPM package on Red Hat Linux

Installing the npx RPM package on Red Hat Linux

npx is a command-line tool that runs Node.js packages, allowing you to use them without needing local or global installation. Essentially you can use it to run a command from a local or remote npm package. However, npx was not found on my Red Hat Enterprise Linux release 9.

AAP: Code Compatibility

AAP: Code Compatibility

Our good old Red Hat Ansible Tower was recently upgraded to the Ansible Automation Platform. Although the AAP adoption was fast, Ansible compatibility tack derailed half an O&M templates in our organization. The error message says, "Invalid data passed to 'loop', it requires a list,

Ansible: Selections

Ansible: Selections

Let's discuss selections in Ansible: if-then-else and case/switch operators. Ansible offers conditional execution for single tasks, blocks, and task imports. In addition, it allows effectively simulate if-then selection.

Ansible: Conditional Playbooks

Ansible: Conditional Playbooks

I have praised Ansible tags all about the previous post. Unfortunately, tags don't go along with Ansible Tower's complex workflows. Let me guide you through the playbook transformation we've done. The answer to this challenge is extra variables.

Keycloak: Use Oracle Autonomous database

Keycloak: Use Oracle Autonomous database

The Keycloack Server documentation recommends an external database to persist realms configuration. The article describes how to configure Oracle Autonomous Transaction Processing service with WildFly/JBoss application server.

Too much security: Is it a thing?

Too much security: Is it a thing?

What I love about Red Hat classes, you get a live environment . This time, my new lab was partially unavailable. I click on the link, glimpse the application page, and then I get a protocol error page.

Ansible NOVA meetup

Ansible NOVA meetup

If you live in metro DC area and interesting in RedHat Ansible come and join us to learn how you can use this marvelous automation tool to manage Oracle Fusion Middleware environments. All details could be found on the event page at https://www.meetup.com/Ansible-NOVA/events/267997275.

NATCAP OUG Meetup

NATCAP OUG Meetup

If you live in the metro DC area and interesting in cutting end technologies come and join us and learn from the first hands. I'm going to talk about containers and virtualization. At the end of the presentation, I'll show you ho you can have your very own RedHat OpenShift 4 on your laptop.

RedHat OpenShift and private repositories

For a while, I play around with RedHat CodeReady Containers [https://developers.redhat.com/products/codeready-containers]and one thing annoyed me most - access to private repositories. My pet projects are GitLab [https://gitlab.com/mikhailidim]and I'm not ready to expose them as public ones. So, whenever

RedHat CodeReady Containers update

RedHat CodeReady Containers update

Today my during the container start I have got notification that version 1.3.0 is available. During setup I get error that my libvrt bundle is not compatible with the new release. So you can find how I made an error and fix it.

Red Hat OpenShift Overview

Red Hat OpenShift Overview

OpenShift is a family of containerization software developed by Red Hat and has been around since 2011. However, it has recently gained more steam over the past couple of years. In this post, I'll give an introduction to OpenShift, with a series of follow ups that give examples