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@jamesjoyneriv

James Joyner

@jamesjoyneriv·San Jose, California·Joined January 2023

DevOps

About

I'm a Sr. Systems Software Engineer with a focus on DevOps principles.

Available for

Freelance work with OpenStack, Terraform, Prometheus, Grafana, Gitlab, and Python.

James Joyner's blogs

DevOps A.I. Toolkitblog.devopsaitoolkit.com6 posts

About

I'm a Sr. Systems Software Engineer with a focus on DevOps principles.

Available for

Freelance work with OpenStack, Terraform, Prometheus, Grafana, Gitlab, and Python.

James Joyner's blogs

DevOps A.I. Toolkitblog.devopsaitoolkit.com6 posts

Articles Comments

Recently published

JJJames Joynerinblog.devopsaitoolkit.com·Jul 15 · 4 min read

Docker Compose in Production: What Changes and What Breaks

Docker Compose is so good at local development that it's tempting to just point it at a production server and call it a day. And you can — Compose runs in production fine. But the docker-compose.yml t

JJJames Joynerinblog.devopsaitoolkit.com·Jul 15 · 4 min read

The Docker Debugging Playbook: exec, logs, inspect & stats

When a container misbehaves, the difference between a five-minute fix and a lost afternoon is usually knowing which command to reach for. Docker gives you a small, powerful toolkit for looking inside

JJJames Joynerinblog.devopsaitoolkit.com·Jul 13 · 4 min read

Hardening a Docker Container: From Root to Least-Privilege in 8 Steps

By default, a Docker container runs its process as root, with a broad set of Linux capabilities, on a writable filesystem, able to make almost any syscall. That's convenient for getting started and te

JJJames Joynerinblog.devopsaitoolkit.com·Jul 11 · 9 min read

kubernetes limits

Kubernetes Limits and Requests: A Practical 2026 Guide Summary: Requests reserve resources for scheduling; limits cap runtime usage. Setting them wrong drives waste, with average cluster CPU utilizati

JJJames Joynerinblog.devopsaitoolkit.com·Jul 10 · 4 min read

Docker Networking, Explained by the 5 Errors It Throws at You

Docker networking is one of those topics you can ignore until, suddenly, you can't. Everything runs fine on your laptop, then a container can't reach another container, or a port won't bind, or DNS re