Ansible
Ansible Vault, Roles and the Road to Production
Encrypt secrets with Ansible Vault and keep them out of logs, refactor playbooks into a role, lean on lint and CI, and name what actually changes when this becomes real infrastructure.
Linux
Ansible
Deploy nginx with Ansible: Handlers, Reloads and Health Checks
Install nginx, deploy a page and meet handlers: the Ansible mechanism that reloads a service only when something actually changed, with a health check that fails the run when the service does not answer, verified against real systemd.
Ansible
Manage Users, SSH Keys and Sudo with Ansible
Onboard and offboard users across a group of Linux servers with one playbook: accounts, SSH keys and sudo rules defined as data, applied with loops and validated before they land.
Ansible
Write Your First Real Ansible Playbook: Baseline a Linux Server
Turn ad-hoc commands into a repeatable playbook that brings Linux servers to a known baseline, with check mode, diff mode and idempotence explained properly.
Ansible
Understand Ansible Inventory, Facts and Ad-Hoc Commands
Learn how Ansible decides which hosts to manage, how to run ad-hoc commands against groups, and how to use facts to answer real operational questions.
Fedora
Fedora 44 Is Out: GNOME 50, GCC 16, Ruby 4.0, and Wine That Just Works
Fedora 44 released 28 April 2026. GNOME 50, kernel 6.19, NTSYNC for Wine, GCC 16, Ruby 4.0, CMake 4 with ninja. What changed and how to upgrade safely.
DevOps
Bare-Metal Kubernetes Storage: Longhorn Setup (Part 2)
After setting up NFS storage in Part 1, I still had a problem: if my Unraid NAS went down, everything stopped. In this guide, I install Longhorn v1.10.1 on my bare-metal Kubernetes cluster for distributed storage with automatic failover. I tested it by shutting down a worker node, the data survived.
Linux
Managing Docker Compose Applications with systemd - A Portainer Example
Stop manually restarting containers after reboots. Use systemd to auto-start Docker Compose apps and manage them with systemctl. Includes Portainer example.