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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
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.

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News on Spacelift, product updates, all IaC & DevOps

Recent posts

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
Terraform7 min read
How to Use Terraform Console Command – Examples

In this short article, we will explore the terraform console command with some examples of how to use it.

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
Terraform12 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
Terraform6 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
Kubernetes10 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.

How to Delete Pods from a Kubernetes Node with Examples
Kubernetes9 min read
How to Delete Pods from a Kubernetes Node with Examples

Learn how to delete a pod from a Kubernetes (K8S) node with examples using a cluster running on AKS. See different ways how to achieve it.

How to View Kubernetes Pod Logs Files With Kubectl
Kubernetes7 min read
How to View Kubernetes Pod Logs Files With Kubectl

The kubectl logs command enables you to access logs from your resources. Learn how to obtain logs from your pods.

Troubleshoot and Fix Kubernetes CrashLoopBackoff Status
Kubernetes9 min read
Troubleshoot and Fix Kubernetes CrashLoopBackoff Status

Learn how to spot Kubernetes CrashLoopBackoff error, how to fix it, and see some reasons why it might occur.

What is Azure DevOps? Services, Advantages & Tutorial
General16 min read
What is Azure DevOps? Services, Advantages & Tutorial

Learn what Azure DevOps is and what it is used for. Check how you can set it up and discover core Azure DevOps services.

Kubectl Apply vs. Kubectl Create – What’s the Difference?
Kubernetes8 min read
Kubectl Apply vs. Kubectl Create – What’s the Difference?

Using both kubectl apply and kubectl create can be useful in different situations. Take a look at the AKS usage example.

How to Restart Kubernetes Pods With Kubectl
Kubernetes7 min read
How to Restart Kubernetes Pods With Kubectl

There is no kubectl restart [podname] command for use with Kubernetes. Learn different ways to achieve a pod ‘restart’ with kubectl.

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