Learn how to build and ship software for the cloud. 🚀
Hi, I'm Tom. When I'm not eating egg sandwiches, I'm on a mission to help you become awesome with DevOps, Kubernetes and the cloud.
I'm teaching everything I know. Explore these tutorials and level-up in DevOps engineering, Linux, automation, developing and shipping cloud-native apps!
Working with containers
- How to Find Docker Images
- How I Created a Python Development Environment with Docker
- How to Start Containers Automatically, with Podman and Systemd
- My Docker Development Workflow: Code, Build, Push, Run
- SSH into a Docker container? Use docker exec instead
- Using volumes with rootless podman, explained
- Rootless container/host networking in Podman, without the hassle
- Managing your Podman containers with Cockpit on Fedora
- The differences between Docker, containerd, CRI-O and runc
- What are containers used for?
- 14 best practices for containerising your Java applications
- How To Communicate Between Docker Containers
- Containers: one single process, or multiple processes?
DevOps Engineering & Linux
- Linux for DevOps: The Beginner's Guide
- How to Hide Sensitive Things in GitHub Actions Logs
- How to Run an Ansible Playbook
- DevOps Project Ideas
- Can't SSH? You Might Have Too Many Keys
- Build a Java container CI/CD pipeline with Concourse
- Ansible Tips: How to Use a Loop to Render Multiple Templates
- Get your branches right: Git branching for microservices
- Using volumes with rootless podman, explained
- Rootless container/host networking in Podman, without the hassle
- The 7 essential stages of a CI/CD pipeline
- Get your metrics on: How to measure DevOps success
Kubernetes & OpenShift
- How Do You Deploy and Manage Apps in Kubernetes?
- Tekton Debugging: How to List Files in a Task
- How to use Ingress Objects on OpenShift
- How to Override Any Spring Boot Property in Kubernetes
- Create a Docker Build Pipeline with Jenkins on OpenShift
- Old Pods' Home: Why is Kubernetes using an old image?
- What are the main Kubernetes architecture components?
- Kubernetes Troubleshooting: Where's My App (ffs)
- How To Use Kubernetes Custom Resources To Sell More Burgers
- How to Deploy a React app to OpenShift
- How to Deploy a Node.js app on OpenShift
- How to Create a Cluster Admin User in OpenShift, the Easy Way
- How to Build an Image from a Dockerfile in OpenShift
- Image Streams in OpenShift: What You Need to Know
- How to Deploy a Web Server on OpenShift
- Developing with Kubernetes on Fedora
- Kubernetes ImagePullBackOff error: what you need to know
- Kubernetes Deployment spec examples
- Learn Kubernetes with these Essential Training Resources
- Helm: A cheat sheet
- How do Pods communicate in Kubernetes?
AWS
Java and Spring
- How to List All Spring Boot Application Properties
- The Honest (and Opinionated) Guide to Java IDEs
- Spring Boot app metrics - with Prometheus and Micrometer
- How to create a simple HTTP server in Java - with Undertow
- 14 best practices for containerising your Java applications
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Tools & Utilities
- 'docker run' Command Generator - enter your container details and generate a
docker runcommand - YAML to JSON Convertor - the classic
- Kubernetes Manifest Cleaner - remove cluster-specific info from your Kubernetes manifests, similar to
kubectl get --export - See all tools →