This is the companion page to my Git and GitHub blueprint - a free three-hour-twenty-minute course that starts at git init and ends with you rewriting history on purpose and resolving merge conflicts without sweating. Everything on this blog - Terraform, Ansible, Kubernetes manifests, this very site - lives in Git, …

This is the companion page to my free Terraform Associate full course - five hours and twenty-five minutes of hands-on Terraform in nineteen chapters. The video walks through every lab; this page gives you the timestamps, the detailed blog post for each chapter (most chapters are a condensed version of a post on this …

Every cloud journey starts with the same boring but important step - getting an account without getting a bill. In this Part-1 of my Google Cloud series we are going to create a Google Cloud account from scratch, claim the $300 welcome credit, and - this is the part most tutorials skip - understand exactly what the …

You have just installed a Kubernetes cluster - with kubeadm, with Kubespray, on a fresh EC2 instance - you type kubectl get nodes, and instead of your nodes you get - 1$ kubectl get nodes 2The connection to the server localhost:8080 was refused - did you specify the right host or port? Nothing is listening on …

Identities are sorted - an IAM user (Part-1), accounts (Part-2) and roles (Part-3). Time to run something. Amazon EC2 (Elastic Compute Cloud) is the virtual server service, and in this Part-4 we launch one from the console, connect to it, and understand every choice on the launch page so that nothing on the bill …

Before the full VPC build in Part-5 of the AWS series - which takes an hour and creates fifteen resources - here is the five-minute version that the short video above gives you in 27 seconds: what a VPC is, what a subnet is, and the handful of words around them. If you can explain this page to a colleague, the rest of …

Most of this blog uses Terraform to build AWS infrastructure, so people ask me regularly - do I still need to know CloudFormation? The answer is yes, for three reasons - it is the native infrastructure-as-code service of AWS and shows up everywhere (Control Tower, Service Catalog, SAM, CDK, the "Launch …

Every network tutorial on this blog - the AWS VPC, VPC peering, Transit Gateway, Cloud WAN, the GCP VPC posts, even the Kubernetes setup - starts with something like 10.0.0.0/16. If that slash-sixteen has always been a thing you copy rather than a thing you understand, this post fixes it in ten minutes. CIDR - …

Your laptop has the address 192.168.1.10. So does your neighbour's. So do roughly a hundred million other laptops in the world right now - and yet every one of them can open this page. The trick that makes that possible is NAT, network address translation, and it is also the trick behind the AWS NAT Gateway that lets …

In this blog post we are going to build a private AI assistant that lives on Telegram, remembers you, reads your inbox on demand, and sends you a triaged email briefing every morning at 7 - all running on your own server with n8n, self-hosted on a VPS for roughly the price of two coffees a month. This is the companion …