TL;DR What you build: four servers (lb-1, app-1, app-2, db-1), four roles (common, postgres, app, nginx_lb), two playbooks (site.yml from zero, deploy.yml for every new version), a Flask API with a /health endpoint, PostgreSQL with its password in Ansible Vault, and a GitHub Actions workflow that deploys on push. Where …

Introduction The number one reason people give up on learning Ansible is not Ansible. It is the lab. "I need three servers", "I don't have a cloud account", "my free tier expired", "the IPs changed again". So for my Ansible course I built a lab that runs entirely on your laptop, …

Introduction Welcome to another Ansible blog post! Today we'll dive deep into Ansible Handlers. Before we jump straight into the demo, let's lay a solid foundation by understanding the 'what' and 'when' of Ansible Handlers - and especially the when, because that is where almost every handler bug comes from. Table of …

Introduction There are a couple of ways in which you can securely connect to a remote server using Ansible. Using the SSH Keys (Public, Private) Using the remote server password Both methods are widely used by DevOps practitioners, and both are secure. But still, if I would like to vote for Using the SSH keys for …

Table of Content What is YAML? Example of YAML? Why Ansible needs YAML? Example of Ansible Playbook written in YAML What are rules for writing Ansible Playbook using YAMLs? Advantages of YAML in Ansible YAML vs Other Data Serialization Formats What is YAML? YAML is a recipe for computers that helps them understand what …

TL;DR Public repository: ansible.builtin.git with repo, dest and version. The first run reports changed=true and the commit it checked out; the second run reports changed=false because the module compares the commit before and after. Private repository over SSH: add key_file pointing at a deploy key on the target and …

TL;DR --limit (or -l) is an intersection: the play runs on the hosts matched by its hosts: line and by your pattern. It can shrink the host list, never grow it. The patterns: web1 (one host), db (a group), web1,db2 (a list), 'web*' (wildcard), 'all:!db' (exclude), 'prod:&web' (intersect), 'web[0:1]' (position in …

It's conceivable that the directory where pip installed Ansible is not in your system's PATH environment variable if you used pip to install Ansible and are getting the error message - 1zsh: command not found: ansible. There are a few options for fixing this issue depending on your local Ansible configuration. So …

Are you interested in finding out how to automate your IT infrastructure and manage your servers with Ansible? You've come to the proper location if so! We'll go in-depth on the in this blog article and demonstrate how to use the following - Inventory file - What are Hosts or Inventory Files? Tasks - How to define …

TL;DR The message is a relay, not a reason. Ansible's service module ran systemctl start apache2, systemd ran apachectl start, apachectl exited non-zero. The reason is in journalctl -u apache2 -n 20 on the target. Three causes cover almost every case: something else on port 80 (AH00072: make_sock: could not bind to …