Building Secure and Scalable Azure Virtual NetworksAzure Virtual Networks (VNets) are a cornerstone of Microsoft's cloud infrastructure, enabling secure and flexible networking for cloud resources. In this article, we’ll explore the key concepts, scenarios, and best practices for designing VNets, bas...Mar 2, 2025·4 min read
Docker Insights and Quick ReferenceBasic Docker Concepts and Terms: Docker Container: A runtime instance of a Docker image. Docker Image: A lightweight, stand-alone, executable package that includes everything needed to run a piece of software. Dockerfile: A text document that cont...Jul 30, 2023·5 min read
Upgrade Kubernetes Cluster on CentOsIn this article, I will demonstrate how to upgrade a Kubernetes cluster on CentOS and explore what happens when attempting to update the Kubernetes version by two versions higher at once. Prerequisites: A functioning Kubernetes cluster. A user with...Jul 27, 2023·3 min read
Terraform Optional Variables and Attributes — Using Null and Optional FlagHow to make Terraform variables optional in resources, especially for attributes in object variables? If you use Terraform modules with other configuration automation tools (e.g. Terragrunt or Ansible) to build your infrastructure, you may need to wr...Jul 27, 2023·5 min read
