All posts by Jack Roper - Infrastructure as Code Expert

Jack Roper

Jack Roper is a highly experienced IT professional with close to 20 years of experience, focused on cloud and DevOps technologies. He specializes in Terraform, Azure, Azure DevOps, and Kubernetes and holds multiple certifications from Microsoft, Amazon, and Hashicorp. Jack enjoys writing technical articles for well-regarded websites.

License and certifications

HashiCorp Certified: Terraform Associate
CKA: Certified Kubernetes Administrator
Microsoft Certified: Azure Virtual Desktop Specialty
Microsoft Certified: Azure Developer Associate
AWS Certified Solutions Architect – Associate

How to Create AWS EC2 Instance Using Terraform

Terraform15 min read

How to Create AWS EC2 Instance Using Terraform

Learn how to create an EC2 instance on AWS using Terraform with examples including configuration files and user_data.

Get the newsletter

News on Spacelift, product updates, all IaC & DevOps

Recent posts

Exit Code 137 – Fixing OOMKilled Kubernetes Error

Kubernetes13 min read

Exit Code 137 – Fixing OOMKilled Kubernetes Error

In this article, we will look at the OOMKilled error (exit code 137) in Kubernetes - what are the common causes and how to fix exit code 137.

How to Test Terraform Code – Strategies & Tools

Terraform18 min read

How to Test Terraform Code – Strategies & Tools

Learn how to test your Terraform code and ensure that all changes are deployed quickly and safely.

What is Container Security? 10 Best Practices & Solutions

General21 min read

What is Container Security? 10 Best Practices & Solutions

Implement 10 container security best practices to ensure key components of your container architecture are protected from potential threats.

How to Set & Use Terraform Environment Variables

Terraform17 min read

How to Set & Use Terraform Environment Variables

Explore what Terraform environment variables are, when and why you would use them, and how to set them with examples of each.

Terraform Refresh Command – Example Usage

Terraform4 min read

Terraform Refresh Command – Example Usage

Learn what the Terraform refresh is and why it is recommended not to use this command directly.

Terraform For Loop – Expression Overview with Examples

Terraform13 min read

Terraform For Loop – Expression Overview with Examples

Learn how to use a for loop in Terraform - iterating over a list and a map, nested loop, expression with an if clause, and other examples.

Terraform Kubernetes Provider: Manage & Deploy Resources

Kubernetes12 min read

Terraform Kubernetes Provider: Manage & Deploy Resources

Learn how you can use the Terraform Kubernetes provider to manage objects on your Kubernetes cluster.

How to Use tfenv to Manage Multiple Terraform Versions

Terraform6 min read

How to Use tfenv to Manage Multiple Terraform Versions

Explore Terraform version manager tfenv, with examples of how to install it and use it to add, change and uninstall different Terraform versions.

How to Use Terraform Console Command – Examples

Terraform6 min read

How to Use Terraform Console Command – Examples

Explore the terraform console command and see examples of how to use it (including expressions, config files, and variables).

What are Kubernetes Custom Resource Definitions (CRDs)?

Kubernetes6 min read

What are Kubernetes Custom Resource Definitions (CRDs)?

Explore Custom Resource Definitions (CRDs) in Kubernetes, learn what they are, possible use cases, and how to get started creating your own CRDs.

How to Provision Azure AKS Cluster Using Terraform

Azure12 min read

How to Provision Azure AKS Cluster Using Terraform

Learn how to use Terraform to create and deploy an Azure Kubernetes Service (AKS) cluster with just four lines of code. AKS module overview.

Using Terraform to Set Up and Deploy Docker Containers

Terraform11 min read

Using Terraform to Set Up and Deploy Docker Containers

Check out how to use Terraform for automation to set up Docker containers on Windows and deploy a demo container.

What are Kubernetes Namespaces? Usage Examples & Tutorial

Kubernetes11 min read

What are Kubernetes Namespaces? Usage Examples & Tutorial

What are Kubernetes namespaces, and when to use them? See how to create a namespace with kubectl and a YAML file.

OpenShift vs. Kubernetes : Product & Project Comparison

Kubernetes13 min read

OpenShift vs. Kubernetes : Product & Project Comparison

OpenShift vs Kubernetes: what are the differences and similarities between two popular container orchestration management systems?

How to Use the If / Else Statement in Terraform – Examples

Terraform6 min read

How to Use the If / Else Statement in Terraform – Examples

Take a look at the Terraform if statement block and conditional expressions in Terraform with a few examples.

CronJob in Kubernetes – Automating Tasks on a Schedule

Kubernetes17 min read

CronJob in Kubernetes – Automating Tasks on a Schedule

See how to define, schedule and run a CronJob in Kubernetes and K8s manifest files. The spec options, troubleshooting and examples.

Guide to Kubernetes Liveness Probes with Examples

Kubernetes14 min read

Guide to Kubernetes Liveness Probes with Examples

Defining probes correctly can improve pod resilience and availability. Take a look at liveness probes in Kubernetes, with some useful examples.

Using Kubectl Exec Command: Connect to Kubernetes Containers

Kubernetes7 min read

Using Kubectl Exec Command: Connect to Kubernetes Containers

Learn how to use the kubectl exec command to get into a Pod bash shell of running container in your Kubernetes (K8S) cluster.

Load more posts

IaC Was Just The Beginning

You need a collaborative environment for building the platform your teams need, with deep insight, full control, and unlimited flexibility. Build better with Spacelift.

Liftoff with Spacelift!

The Practitioner’s Guide to Scaling Infrastructure as Code

Transform your IaC management to scale

securely, efficiently, and productively

into the future.

ebook global banner

Share your data and download the guide