Cloud-Computing

Table of Contents Introduction What is Amazon EC2? Key Components You Need to Know Prerequisites and Setup Step-by-Step: Launching Your First EC2 Instance Connecting to Your Instance Understanding Instance Types and Configurations Security Groups and Network Settings User Data Scripts and Automation Managing Your Instances: Stopping vs. Terminating Cost Optimization and Free Tier Benefits Advanced Topics: IAM Roles and Elastic IPs Troubleshooting Common Issues Next Steps and Resources Conclusion Introduction Amazon EC2 (Elastic Compute Cloud) stands as one of the most powerful and widely-used services in the AWS ecosystem[1]. Whether you’re a developer looking to host applications, a data scientist setting up computing environments, or an infrastructure engineer managing cloud resources, understanding EC2 is essential in today’s cloud-first world. ...

Docker has revolutionized software development and deployment by providing lightweight, portable containers that package applications and their dependencies together. But how exactly does Docker work under the hood to achieve this isolation and efficiency? This article takes a comprehensive look at Docker’s internal architecture, explaining the key components and how they interact to create and run containers. Table of Contents Introduction Docker’s Client-Server Architecture Key Docker Components Docker CLI Docker Daemon (dockerd) Container Runtime (containerd and runc) Linux Kernel Features How Docker Creates and Runs a Container Filesystem Management with OverlayFS Networking and Isolation Resource Management via cgroups Conclusion Introduction Docker containers provide isolated environments that behave like virtual machines but share the host OS kernel, making them highly efficient. This is achieved through a combination of Linux kernel features, container runtimes, and Docker’s own architecture. Understanding these layers helps in optimizing container usage and troubleshooting complex issues. ...