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James Walker

James Walker is the founder of Heron Web, a UK-based software development studio providing bespoke solutions for SMEs. He has experience managing complete end-to-end web development workflows with DevOps, CI/CD, Docker, and Kubernetes. James is also a technical writer and has written extensively about the software development lifecycle, current industry trends, and DevOps concepts and technologies.
James Walker
Docker Compose – What is It, Example & Tutorial
Docker15 min read

Docker Compose – What is It, Example & Tutorial

What is Docker Compose? See a getting started tutorial for beginners with file structure, commands, how to install, how to use, and docker compose examples.

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Recent posts

Fixing Kubernetes CreateContainerConfigError & CreateContainerError
Kubernetes9 min read
Fixing Kubernetes CreateContainerConfigError & CreateContainerError

What is CreateContainerConfigError and CreateContainerError in Kubernetes? See common causes and how to fix and debug.

Kubernetes StatefulSet vs. Deployment with Use Cases
Kubernetes11 min read
Kubernetes StatefulSet vs. Deployment with Use Cases

See the differences between Kubernetes StatefulSet vs. Deployment. Including the table comparison and use cases for each.

Docker ENTRYPOINT and CMD : Differences & Examples
Docker8 min read
Docker ENTRYPOINT and CMD : Differences & Examples

What is ENTRYPOINT in Docker, how to run and why do we use it? See ENTRYPOINT vs. CMD comparison and examples of using them together.

What is Kubecost & How to Use It [Tutorial]
Kubernetes11 min read
What is Kubecost & How to Use It [Tutorial]

Kubecost overview and its features as a cost allocation & optimization tool. Learn how to install Kubecost and use it to make savings in your own cluster.

How to Install Kubernetes – 4 Different Ways [Step-by-Step]
Kubernetes12 min read
How to Install Kubernetes – 4 Different Ways [Step-by-Step]

Learn how to install Kubernetes cluster with this step-by-step guide. See how to set it up using Minikube, MicroK8s, K3s, and Kubeadm

21 Docker Security Best Practices: Daemon, Image, Containers
Docker14 min read
21 Docker Security Best Practices: Daemon, Image, Containers

This Docker security best practices guide includes key steps you can take to secure the Docker daemon, create safer images, and protect containers at runtime.

Guide to Kubernetes Certification in 2024: Path, Exams & Cost
Kubernetes12 min read
Guide to Kubernetes Certification in 2024: Path, Exams & Cost

Are you looking to get your Kubernetes certifications? We'll cover the available courses, their cost and how to prepare. Pick the right K8s certification path!

Kubernetes Persistent Volumes – Tutorial and Examples
Kubernetes14 min read
Kubernetes Persistent Volumes – Tutorial and Examples

What are Persistent Volumes in Kubernetes? How PVs work, and how to get started? See types, access modes, and best practices.

How to Scale CI/CD – 7 Steps to Optimize Your Pipelines
General12 min read
How to Scale CI/CD – 7 Steps to Optimize Your Pipelines

Take a look at some of the CI/CD scaling problems, learn how to detect them. Learn how to scale and optimize your CI/CD pipelines.

Docker Cheat Sheet – 36 Docker CLI Commands
Docker16 min read
Docker Cheat Sheet – 36 Docker CLI Commands

This Docker cheat sheet include a quick reference to all the important CLI commands you need when using Docker!

What is AWS STS – Security Token Service?
AWS11 min read
What is AWS STS – Security Token Service?

AWS STS definition and overview. See an example of how to assume a role with AWS STS.

How to Run Kubernetes on AWS – Tutorial
Kubernetes15 min read
How to Run Kubernetes on AWS – Tutorial

In this step-by-step tutorial, you'll learn three different ways to handle Kubernetes deployments on AWS, including their benefits and drawbacks.

How to Keep Docker Secrets Secure: Complete Guide
Docker12 min read
How to Keep Docker Secrets Secure: Complete Guide

Secrets are sensitive values. Learn how to use your Docker secrets securely when building Docker images and starting containers.

Docker vs. Kubernetes: Tools Comparison
Docker10 min read
Docker vs. Kubernetes: Tools Comparison

Both Docker and Kubernetes are container tools. See their similarities and differences, and the advantages of using each tool.

Docker Networking – Basics, Network Types & Examples
Docker12 min read
Docker Networking – Basics, Network Types & Examples

With this Docker networking introduction, you'll learn how Docker networks function and the basics of using them with your container deployments.

15 Common Kubernetes Pitfalls & Challenges
Kubernetes13 min read
15 Common Kubernetes Pitfalls & Challenges

See the common Kubernetes pitfalls and their solutions to get more control over your cluster and its deployments.

16 Most Useful Container Orchestration Tools in 2024
General12 min read
16 Most Useful Container Orchestration Tools in 2024

Container orchestrators are the key to modern DevOps workflows - see the list of the best container orchestration tools and platforms.

What is a Kubernetes Operator? Definition & Examples
Kubernetes10 min read
What is a Kubernetes Operator? Definition & Examples

Learn what the Kubernetes operator is, how it works, and how to write one. See different operator examples. Operator vs controller explained.

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