Insights on DevOps, cloud infrastructure, Kubernetes, and Linux systems. I write about the things I learn and the problems I solve.
A staging drill on Argo Rollouts showed Datadog kubernetes_state.pod.ready gates take 4–7 minutes to become queryable and can false-pass or false-fail. HTTP analysis against the canary preview service passed in ~45 seconds.
A step by step guide
A personal reflection on the reasons behind my recent hiatus from public technical writing and community knowledge sharing.
My intensive study strategy for passing both the Associate Cloud Engineer and Professional Cloud Architect exams in just 30 days, including my honest take on using exam dumps.
A comprehensive roadmap for aspiring DevOps engineers, outlining the essential skills, tools, and learning path I would follow if I were starting my career from scratch.
A complete guide for freelancers on understanding Upwork's payment cycles, hourly vs. fixed-price protection, and available withdrawal methods.
A troubleshooting guide to resolve the common issue where external monitors fail to wake up from suspend mode on Ubuntu, covering graphics driver and kernel configuration fixes.
A guide to significantly reducing CI/CD costs by configuring GitLab Runners to auto-scale using AWS EC2 Spot Instances via Docker Machine.
A personal reflection on transitioning from full-time employment to freelance DevOps work on Upwork, covering client acquisition, project management, and key takeaways.
A step-by-step guide to configuring GitLab CI Runners to automatically scale up and down by provisioning Virtual Machines on VMware vSphere on demand.
A practical guide to configuring network interfaces, setting static IP addresses, and managing DNS settings in Linux using command-line tools.
A guide to managing container lifecycles and ensuring high availability using Docker's restart policies: no, on-failure, always, and unless-stopped.
A definitive guide to calculating the optimal swap partition size for Linux servers and desktops based on available RAM and Red Hat's official recommendations.
A deep dive into how Red Hat Enterprise Linux 7 boots up, covering the transition from BIOS/UEFI, GRUB2, kernel loading, to systemd initialization.
A comprehensive guide to managing Linux background services (daemons) using systemd, systemctl, and service commands.
A comprehensive guide on managing Linux storage devices, understanding the file system tree, and using essential commands like mount, umount, fdisk, and mkfs.