Monthly Archives: January 2023
EX294 Red Hat Certified Engineer RHCE – Using Scripts for System Administration Tasks
1. Introduction Hello. Welcome to section One. Using scripts for system administration tasks till now, we already learnt how to write ansible playbooks and how to use ansible ad hoc commands. In this section, we learn how we can use ansible ad hoc commands to run as shell script. In fact, we will be doing… Read More »
7. Introducing and Understanding Ansible Vaults With Example Playbook Hello, welcome to this lecture. In this lecture we’ll learn about ansible vault. Ansible vault as name indicates is a feature of ansible to keep sensitive data such as passwords or keys in encrypted files rather than as plain text in playbooks or roles. We’ll use… Read More »
5. Task: Creating J2 Template to Configure Hosts file as Local DNS on Managed Nodes Hello, welcome to this lecture. In this lecture we learn how we can configure hosts file on the remote nodes as local DNS using Ginger to template file and template module. This is practical example and we often need to… Read More »
3. Task: Creating and Deploying Jinja2 Template to Managed Nodes Using Playbook Hello, welcome to this lecture. In this lecture we learn how we can use template module to deploy Ginger to template file, to remote nodes or to remote node. Here is task description create a template hostname dot j two. Here we are… Read More »
1. Understanding jinja2 if statement Hello, welcome to this lecture. In this lecture we’ll discuss about Ginger Two template if statement. We will be using Ginger Two if and for statements later on, while creating Ginger Two template files. So this is important to understand them. We’ll learn how two if statement works with the… Read More »
EX294 Red Hat Certified Engineer RHCE – Setting Up LAB Environment
1. LAB Setup details Hello, welcome to this section. In this section we will prepare lab setup environment for this course. First of all we’ll discuss about lab setup details. We will use five CentOS eight VMs installed using Oracle VirtualBox. I am using windows machine as host machine and I have VirtualBox installed on… Read More »
EX294 Red Hat Certified Engineer RHCE – Introduction
1. Introducing Exam Objectives and Format Welcome again. In this lecture I will introduce exam objectives and exam format. On the exam you are expected to perform different system administration tasks using NCBL. So as a prerequisite you must know all the objectives of Rscsa Exam and you must know different commands you used to… Read More »
EX294 Red Hat Certified Engineer RHCE – Exploring Core Components of Ansible Part 7
19. Ansible facts and Accessing Ansible facts using Jinja2 expressions Hello, welcome to this lecture. In this lecture we learn about ansible facts and how we can access different ansible facts variables. We know ansible facts are data information about remote systems like operating system, they use IP addresses assigned on different interfaces, hostname disk… Read More »
EX294 Red Hat Certified Engineer RHCE – Exploring Core Components of Ansible Part 6
16. Understanding Mixed Variable(Dict+List) with Playbook example Hello. Welcome to this lecture. In this lecture we will discuss about complex variable consisting of board, dictionary and list variables. Here we have words section defined variable. Name is users. So this user’s variable is list of two items which are further dictionaries. So here this is… Read More »
EX294 Red Hat Certified Engineer RHCE – Exploring Core Components of Ansible Part 5
13. Understanding Simple Ansible Variable with playbook example Hello, welcome to this lecture. In this lecture we’ll learn about ansible variables. We know ansible playbooks are written in YAML. YAML supports dictionary variables, list variables and complex variables using dictionaries and lists both. So in this lecture we’ll understand what our dictionary variables, what are… Read More »
