RH294 - ch01s04

Preface A: Introduction

Section A.1: Red Hat Enterprise Linux Automation with Ansible

Section A.2: Orientation to the Classroom Environment

Section A.3: Obtaining a Trial Subscription to Red Hat Ansible Automation Platform

Chapter 1: Introducing Ansible

Section 1.1: Automating Linux Administration with Ansible

Section 1.2: Quiz: Automating Linux Administration with Ansible

Section 1.3: Installing Ansible

SectionSection 1.4: Guided Exercise: Installing Ansible

Section 1.5: Summary

Chapter 2: Implementing an Ansible Playbook

Section 2.1: Building an Ansible Inventory

Section 2.2: Guided Exercise: Building an Ansible Inventory

Section 2.3: Managing Ansible Configuration Files

Section 2.4: Guided Exercise: Managing Ansible Configuration Files

Section 2.5: Writing and Running Playbooks

Section 2.6: Guided Exercise: Writing and Running Playbooks

Section 2.7: Implementing Multiple Plays

Section 2.8: Guided Exercise: Implementing Multiple Plays

Section 2.9: Lab: Implementing an Ansible Playbook

Section 2.10: Summary

Chapter 3: Managing Variables and Facts

Section 3.1: Managing Variables

Section 3.2: Guided Exercise: Managing Variables

Section 3.3: Managing Secrets

Section 3.4: Guided Exercise: Managing Secrets

Section 3.5: Managing Facts

Section 3.6: Guided Exercise: Managing Facts

Section 3.7: Lab: Managing Variables and Facts

Section 3.8: Summary

Chapter 4: Implementing Task Control

Section 4.1: Writing Loops and Conditional Tasks

Section 4.2: Guided Exercise: Writing Loops and Conditional Tasks

Section 4.3: Implementing Handlers

Section 4.4: Guided Exercise: Implementing Handlers

Section 4.5: Handling Task Failure

Section 4.6: Guided Exercise: Handling Task Failure

Section 4.7: Lab: Implementing Task Control

Section 4.8: Summary

Chapter 5: Deploying Files to Managed Hosts

Section 5.1: Modifying and Copying Files to Hosts

Section 5.2: Guided Exercise: Modifying and Copying Files to Hosts

Section 5.3: Deploying Custom Files with Jinja2 Templates

Section 5.4: Guided Exercise: Deploying Custom Files with Jinja2 Templates

Section 5.5: Lab: Deploying Files to Managed Hosts

Section 5.6: Summary

Chapter 6: Managing Complex Plays and Playbooks

Section 6.1: Selecting Hosts with Host Patterns

Section 6.2: Guided Exercise: Selecting Hosts with Host Patterns

Section 6.3: Including and Importing Files

Section 6.4: Guided Exercise: Including and Importing Files

Section 6.5: Lab: Managing Complex Plays and Playbooks

Section 6.6: Summary

Chapter 7: Simplifying Playbooks with Roles and Ansible Content Collections

Section 7.1: Describing Role Structure

Section 7.2: Quiz: Describing Role Structure

Section 7.3: Creating Roles

Section 7.4: Guided Exercise: Creating Roles

Section 7.5: Deploying Roles from External Content Sources

Section 7.6: Guided Exercise: Deploying Roles from External Content Sources

Section 7.7: Getting Roles and Modules from Content Collections

Section 7.8: Guided Exercise: Getting Roles and Modules from Content Collections

Section 7.9: Reusing Content with System Roles

Section 7.10: Guided Exercise: Reusing Content with System Roles

Section 7.11: Lab: Simplifying Playbooks with Roles and Ansible Content Collections

Section 7.12: Summary

Chapter 8: Troubleshooting Ansible

Section 8.1: Troubleshooting Playbooks

Section 8.2: Guided Exercise: Troubleshooting Playbooks

Section 8.3: Troubleshooting Ansible Managed Hosts

Section 8.4: Guided Exercise: Troubleshooting Ansible Managed Hosts

Section 8.5: Lab: Troubleshooting Ansible

Section 8.6: Summary

Chapter 9: Automating Linux Administration Tasks

Section 9.1: Managing Software and Subscriptions

Section 9.2: Guided Exercise: Managing Software and Subscriptions

Section 9.3: Managing Users and Authentication

Section 9.4: Guided Exercise: Managing Users and Authentication

Section 9.5: Managing the Boot Process and Scheduled Processes

Section 9.6: Guided Exercise: Managing the Boot Process and Scheduled Processes

Section 9.7: Managing Storage

Section 9.8: Guided Exercise: Managing Storage

Section 9.9: Managing Network Configuration

Section 9.10: Guided Exercise: Managing Network Configuration

Section 9.11: Lab: Automating Linux Administration Tasks

Section 9.12: Summary

Chapter 10: Comprehensive Review: Red Hat Enterprise Linux Automation with Ansible

Section 10.1: Comprehensive Review

Section 10.2: Lab: Deploying Ansible

Section 10.3: Lab: Creating Playbooks

Section 10.4: Lab: Managing Linux Hosts and Using System Roles

Section 10.5: Lab: Creating Roles

Bookmark this page

P 1 2 3 4 5 6 7 8 9 10

Guided Exercise: Installing Ansible

In this exercise, you install automation content navigator on a control node that runs Red Hat Enterprise Linux.

Outcomes

You should be able to install automation content navigator on a control node.

As the student user on the workstation machine, use the lab command to prepare your system for this exercise.

This command prepares your environment and ensures that all required resources are available.

[student@workstation ~]$ lab start intro-install

Procedure 1.1. Instructions

On the workstation machine, install the ansible-navigator RPM package that provides automation content navigator so that you can use that machine as your control node.
```
[student@workstation ~]$ sudo dnf install ansible-navigator
[sudo] password for student: student
Last metadata expiration check: 0:12:47 ago on Fri 29 Jul 2022 11:10:54 AM EDT.
Dependencies resolved.
...output omitted...
Is this ok [y/d/N]: y
...output omitted...
```
Note
This lab environment is already configured with the remote RPM package repository needed to install ansible-navigator. In a production setting, you would need to use subscription-manager to register your system with Red Hat Subscription Management and enable the ansible-automation-platform-2.2-for-rhel-9-x86_64-rpms repository first.
Verify that automation content navigator is installed on the system. Run the ansible-navigator command with the --version option.
```
[student@workstation ~]$ ansible-navigator --version
ansible-navigator 2.1.0
```
Log in to the container registry. Use the podman login command to log in to the automation hub registry at utility.lab.example.com. Use admin as the username and redhat as the password.
```
[student@workstation ~]$ podman login utility.lab.example.com
Username: admin
Password: redhat
Login Succeeded!
```

Download the execution environment container image. Run the ansible-navigator images command to make automation content navigator download the execution environment image and display a list of the available images.

[student@workstation ~]$ ansible-navigator images
...output omitted...
Running the command: podman pull utility.lab.example.com/ee-supported-rhel8:latest
...output omitted...

After the ee-supported-rhel8:latest image is downloaded, ansible-navigator displays the list of images in interactive mode:

  Image                 Tag     Execution environment    Created      Size
0│ee-supported-rhel8    latest  True                     5 weeks ago  1.32 GB


^b/PgUp page up ^f/PgDn page down ↑↓ scroll esc back [0-9] goto :help help

Press Esc to exit the image list.

Finish

On the workstation machine, run the lab finish intro-install script to clean up this exercise.

[student@workstation ~]$ lab finish intro-install

This concludes the guided exercise.

Discuss Red Hat Enterprise Linux Automation with Ansible

Go to community

Red Hat Linux Automation with Ansible (RH294)

Haley_Ruccio

24 lip 2023

Learn how to automate Linux system administration tasks with Red Hat Ansible Automation PlatformRed Hat Enterprise Linux Automation with Ansible (RH294) is designed for Linux administrators and developers who need to automate repeatable and error-prone steps for system provisioning, configuration, application deployment, and orchestration. This course is based on Red Hat® Enterprise Linux® 9 and Red Hat Ansible Automation Platform 2.2.Course content summaryInstall Red Hat Ansible Automation Platform on control nodes.Create and update inventories of managed hosts and manage connections to them.Automate administration tasks with Ansible Playbooks and ad hoc commands.Write effective playbooks at scale.Protect sensitive data used by Ansible Automation Platform with Ansible Vault.Reuse code and simplify playbook development with Ansible Roles and Ansible Content Collections.Audience for this courseThis course is geared toward Linux system administrators, DevOps engineers, infrastructure automation engineers, and systems design engineers who are responsible for these tasks:Automating configuration managementEnsuring consistent and repeatable application deploymentProvisioning and deployment of development, testing, and production serversIntegrating with DevOps continuous integration/continuous delivery workflowsPrerequisites for this coursePass the Red Hat Certified System Administrator (RHCSA) exam (EX200), or demonstrate equivalent Red Hat Enterprise Linux knowledge and experience.Take our free assessment to gauge whether this offering is the best fit for your skills.

980

curl finds no route to host?

TPeters

23 lip 2023

I am doing the self-paced course RH294 . With two exercises (Ch.3 final Lab and Ch.4 lab exercise 2) I ran into this problem:after installing and starting a web service, from the classroom web termicaI I cannot reach servera.lab.example.com with curl: "No route to host". This despite the fact that I can ping it, open a shell to it, and install the package on it with Ansible.Anyone else have the same problem?What might be the cause?

1702

Welcome to the Red Hat Linux Automation with Ansible (RH294) group in the Red Hat Learning Community

cschunke

18 lip 2023

We are excited to launch a space dedicated to the Red Hat Training course Red Hat Linux Automation with Ansible! To gain the most value from this group - click the "Join Group" button in the upper right hand corner.We encourage group members to collaborate in this group to discuss topics, ask questions, share best practices and tips, provide course feedback, and share their accomplishments as it relates to RH294.Read more about Red Hat Linux Automation with Ansible here.

351

Revision: rh294-9.0-c95c7de

Red Hat Enterprise Linux Automation with Ansible

Guided Exercise: Installing Ansible

Note