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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
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.

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Recent posts

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 with Docker Compose, Swarm and when building Docker images.

Docker vs. Kubernetes: Container Solutions Comparison
Docker13 min read
Docker vs. Kubernetes: Container Solutions 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 2025
General12 min read
16 Most Useful Container Orchestration Tools in 2025

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.

What Is a Dockerfile And How To Build It – Best Practices
Docker13 min read
What Is a Dockerfile And How To Build It – Best Practices

Learn what Dockerfile is, an example of how to create and use one, and some best practices you should follow.

Docker Volumes – Guide with Examples
Docker11 min read
Docker Volumes – Guide with Examples

Learn what Docker Volumes are and the use cases they enable with some practical examples of using volumes with Docker and Docker Compose.

What Is ArgoCD? A Practical Tutorial With Kubernetes
General13 min read
What Is ArgoCD? A Practical Tutorial With Kubernetes

In this article we will cover the basics of Argo CD and show how to use it with Kubernetes.

What is a Kubeconfig File & How to Create It [Tutorial]
Kubernetes12 min read
What is a Kubeconfig File & How to Create It [Tutorial]

Learn why and how to use Kubeconfig file for Kubernetes clusters and how to merge Kubeconfigs into one file to use Kubectl commands.

Guide to Kubernetes StatefulSet – When to Use It and Examples
Kubernetes11 min read
Guide to Kubernetes StatefulSet – When to Use It and Examples

How and when to use Kubernetes StatefulSet objects to reliably manage state in your cluster. See a practical example.

Kubernetes CI/CD Pipelines – 7 Best Practices and Tools
Kubernetes10 min read
Kubernetes CI/CD Pipelines – 7 Best Practices and Tools

Learn some best practices and techniques for managing CI/CD pipelines with Kubernetes and five tools you can try out.

Prometheus Monitoring for Kubernetes Cluster [Tutorial]
Kubernetes13 min read
Prometheus Monitoring for Kubernetes Cluster [Tutorial]

How does Prometheus work with Kubernetes? Install, set up, and run Prometheus in Kubernetes using kube-prometheus-stack.

Docker Tutorial for Beginners – Introduction & Getting Started
Docker14 min read
Docker Tutorial for Beginners – Introduction & Getting Started

What is Docker? How to get started with Docker? See our Docker tutorial for beginners with practical examples of common container management tasks.

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