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Docker is an open-source project to easily create lightweight, portable, self-sufficient containers from any application. The same container that a developer builds and tests on a laptop can run at scale, in production, on VMs, bare metal, OpenStack clusters, public clouds and more.
CHAPTER 1 :
Introduction
Three Ways - Containers, VMs and Bare Metals
Whats under the hood - Namespaces, Cgroups and OverlayFS
Portability, Density, Consistency - The Key Features of Docker
The Docker Evolution Story
Docker Workflow and Components
CHAPTER 2 :
Setting up the Environment
Option 1: Docker for Mac/Windows
Option 2: Using Docker Toolbox
Option 3: codespaces.io
CHAPTER 3 :
Introduction
Testing Waters with Docker
Launching our first Container
Launching Container Like a VM with Interactive Mode
Namespaces in Action - Learning Whats contained and whats not
Making Containers Persist
Connecting to a Running Container
Pause, Stop Remove
Lab: Getting Started with Docker (Offline)
CHAPTER 4 :
Introduction
Port Mapping Primer - Launching and Connecting to a Web Application
Renaming, Top, Attaching and Detaching
Inspecting Containers and Foregrounding
Limiting Resources - Memory
Prioritising CPU Utilisation
CHAPTER 5 :
Introduction
How to package an application into a Docker Image
Building Docker Image the Imperative Way
Launching and customizing a Container
Committing the container into an Image and Validating
Troubleshooting Image Builds, Publishing to Docker Hub
Automating Image builds with a Dockerfile
Image build cache, Dangling Images, Image Tagging
Testlab Openshift
CHAPTER 6 :
Introduction
Docker Host Networking Primer
Inspecting the default Bridge
Creating Networks - Bridge, None and Host
Multi Host Networking and Overlay
CHAPTER 7 :
Introduction
Compose Primer Launching Redis Container
Using Container Linking to connect Services
Creating Docker Compose Specifications
Launching Application Stack with Docker Compose
CHAPTER 8 :
Introduction
Need for and key features of Container Orchestration Engine
Docker Swarm Key Concepts
Provisioning 5 nodes Swarm cluster with 3 managers and 2 workers
Provisioning a high available replicated Service manually
Extending docker compose to deploy in Production with stack deploy
Adding deploy and replication configuration for voting app
Container and Node fault tolerance in action with Swarm
Zero Downtime Deployment and Rolling Updates
CHAPTER 9:
Why kubernetes
Launching a kubernetes cluster on Google Cloud Platform
Deploying and publishing frontend app on GKE
High Availability and Release Strategies with Deployments
Publishing Applications with Services
Pods - unit of deployment
When to run more than one container in a pod ?
Kubernetes Internal Service Discovery
Assignment - Deploy application for shopping cart
Solution - Carts Application Deployment
Scaling applications manually and with auto scaler
Zero Downtime Deployment
Quick dive into kubectl, a CLI client for kubernetes
