Containers Under the Hood

🚀 Course Title: Containers Under the Hood

🎓 Course Instructor: Systems Guy

Course Headline: A Bottom-up Approach to Docker and Kubernetes

Dive deep into the world of Containers with a hands-on, foundational understanding of Linux mechanisms like Namespaces, Overlay Filesystems, and Cgroups. This course doesn't just scratch the surface; it takes you on an enlightening journey from the basics to the advanced features of Docker and Kubernetes.

Why this Course? 🤔

• Unique Approach: Unlike other courses, this one starts with the core mechanisms behind containers, giving you a deeper understanding of how things work.
• Comprehensive Understanding: You'll learn not just how to use Docker and Kubernetes, but why they function the way they do.
• Broad Skillset: The knowledge you gain from this course will be applicable beyond just Docker and Kubernetes; it will enhance your overall understanding of Linux and system virtualization.

Course Content Breakdown 📚

Foundational Concepts:

• Linux Basics: A quick refresh on essential command-line operations and system navigation if needed.
• Container Landscape: Introduction to Docker, Kubernetes, and their significance.

Core Mechanisms:

1. Namespaces: Understanding resource isolation and how it is achieved with Namespaces.
2. Mount Namespaces: Exploring file system isolation and its implications.
3. Cgroups: Learning about CPU and memory allocation in a containerized environment.
4. Control Groups (Kubernetes): Applying Cgroup concepts specifically for Kubernetes orchestration.

Advanced Topics:

• Image Layering: Breaking down multi-layered images to understand how Docker builds its images.
• Docker Networking: Inside the networking magic within containers.
• Persistent Data and Volumes: Ensuring data survival across container restarts and reinstances.

Container Orchestration with Kubernetes:

• Kubernetes Components: Getting to know the control plane and worker nodes.
• Pod Lifecycle: Managing the lifecycle of pods, the smallest deployable units in Kubernetes.
• Service Discovery: Understanding how services are exposed within a cluster.
• Resource Orchestration: Deep dive into how Kubernetes orchestrates CPU and memory for pods.

Real-world Applications:

• Use Cases: Seeing how these concepts apply to real-world scenarios in software development, deployment, and operation.
• Best Practices: Learning the do's and don'ts when working with Docker and Kubernetes.

Prerequisites & Requirements 🔧

• Curiosity and Patience: A key ingredient for a successful learning experience.
• Basic Programming Skills: Essential for understanding the command-line interface and scripting.
• Linux Familiarity: Some exposure to Linux command-line operations will be helpful.
• No Prior Container Experience Needed: The course includes groundwork on Docker and Kubernetes concepts.
• VM Provided: Recommended to have the free virtual machine that accompanies this course for hands-on practice.

Learning Approach 🔍

• Paced Learning: Do not rush through the content; take your time to understand each component thoroughly.
• Hands-on Practice: Regularly engage with examples and exercises to solidify your understanding.
• Breaks and Reflection: Allow time for digestion and reflection on the concepts covered.

Disclaimer 📙

This course is not affiliated, certified, accredited, or endorsed by Docker, Inc., Kubernetes, or The Linux Foundation. It is an independent educational resource designed to provide a deep understanding of container technologies and their underlying mechanisms.

Join us on this journey to unravel the mystery of Containers from under the hood! 🚗👨‍💻👩‍💻