Introduction – challenges building and deploying Microservices

• Challenge
• Solution

What are Containers ? How different from VMs ?

• Old Story & Cloud Computing
• How are these VMs created ?
• Problems deploying Microservices on VMs ?
• How are containers different from VMs ?

Definition of Containers, Containerization, Docker

• What is a container?
• What is Software Containerization ?
• What is Docker ?
• What happens inside the Containerization concept ?
• Namespaces
• cgroups
• How Docker works on MacOS & Windows

Docker Components & Architecture

• Docker Client
• Docker Server
• Docker Registry
• Flow

Docker Installation

Docker Image Generation

• Approach 1 – Docker File
• Approach 2 – BuildPacks
• Approach 3 – Google Jib

Docker File – Generating Docker Image – Approach 1

• Behind Scenes – What are the steps ?
• Writing the Docker File
• Generate Docker Image from Dockerfile
• Check for all Docker images – from CLI
• Inspect Docker image
• Run a Docker Container from Docker image
• docker run
• Run container in detached mode
• Know existing containers
• Start/Stop existing Docker container
• Create multiple containers from a Docker Image
• Port mapping in Docker
• Steps to be Followed
• Challenges with Dockerfile approach

BuildPacks – Generating Docker Image – Approach 2

• What are Buildpacks ?
• How to generate Docker image using Buildpacks ?
• Check for all Docker images – from CLI
• Run a Docker Container from Docker image
• docker run
• Steps followed

Google Jib – Generating Docker Images

• How to generate Docker image
• Steps to be Followed

Dockerfile v/s Buildpack v/s Google Jib

Pushing Docker images from local system to remote Docker Hub repository

• docker image push command
• Validate Images in Docker repository
• Pull the image from Docker repository

Docker Compose

• Need for Docker Compose
• What is it ?
• Check Docker Compose version
• Get started with Docker Compose
• Creating Microservices in a single network
• Running all Microservices using Docker Compose file
• Stopping all the containers

Deep Dive on Docker commands

Important Docker Extensions