Ansible: A Complete Course with Step-by-Step Demo and Labs

Create and manage static inventories by adding hosts and groups to the default inventory and a custom inventory file, including web servers and US groups, then verify with list-hosts.

Describe where ansible.cfg files live (project directory, home, global) and how precedence selects the active file, and how to edit for defaults.

Configure an ssh key on the control node, deploy it to managed hosts with an Ansible playbook using the authorized_key module, and manage privilege escalation with become settings.

Learn to run a single Ansible task with ad hoc commands without writing a playbook, using host patterns, modules, and inventory options for quick tests and one-off changes.

Practice running ad hoc commands across multiple managed hosts with privilege escalation using become, and verify file changes with the copy module on both the control node and server a.

learn to implement playbooks in ansible by writing simple yaml-based playbooks, running them across multiple hosts with the ansible-playbook command, and using ad hoc commands for quick tasks.

Write and run Ansible playbooks to install httpd, copy index.html, and start the httpd service. Prepare inventory with web group, validate yaml syntax, run the playbook, and verify with curl.

Build Ansible playbooks with multiple plays for different hosts, manage privilege escalation with remote_user and become, and use idempotent modules like copy over shell.

Master Ansible variable handling by defining and referencing host, group, and play variables; learn variable precedence, vault encrypted variables, facts, and how to use registers in playbooks.

Define and use playbook variables to install the Apache web server, open firewall ports, start services, deploy content, and verify the web page responds with status 200.

Master managing secrets in ansible by encrypting variables in secret.yaml, decrypting them, and running a playbook to create a user on a web server using vault.

Create a YAML playbook to manage variables and facts, install web server packages, configure basic authentication, and verify access with a URI task in this Ansible lab.

Learn how ansible handlers trigger after task changes via notify, restarting services and applying configuration updates, demonstrated by a configure_db playbook that sets the database password.

Explore how to handle task failure in an Ansible playbook, including ignore_errors, block rescue, and always. Configure a host and database group, and define web_package and db_package variables.

Set up an Ansible lab on Red Hat Enterprise Linux 9 VMs by enabling cockpit, configuring firewall, creating virtual machines, and registering with an activation key to install RHEL 9.3.

Clone and power two virtual machines, rename hosts, take snapshots, then install Ansible core on the control node, verify the version, and prepare the lab for remote management.

Set up ssh key-based authentication between the control node and the managed node by generating an rsa key pair with ssh-keygen, copying it with ssh-copy-id, and logging in without password.

Master practical Ansible ad-hoc commands to manage hosts using the pin and user modules. Learn command structure, inventory usage, become privileges, idempotency, and error handling for effective system administration.