Docker Tutorial

Docker is a powerful tool used for developing, packaging, and deploying applications efficiently. Docker is a container management service. Docker was released in 2013. It is open-source and available for different platforms like Windows, macOS, and Linux. Docker is quickly shipping, testing, and deploying code. So that it reduces your delay between writing code and running it in production. You can create self-contained environments known as containers. That can run consistently on different platforms.

You need to install the Docker engine on your computer or device. The Docker engine allows you to create and manage docker containers, docker images, docker hub, docker desktop, etc.

In this Docker Tutorial, you’ll learn all the basic to advanced concepts like Docker installation, Docker container, Docker commands, Docker run, Docker images, Docker compose, Docker engine, Docker networking, etc.

Table of Content Docker

• Introduction
• Docker Installation
• Docker Commands
• Docker Run
• Docker Images
• Docker Compose
• Docker Engine, Storage
• Docker Networking
• Docker Registry
• Docker Containers and Managing Containers
• Docker Swarm

Introduction

• Introduction to Docker
• Features of Docker
• Docker Architecture
• Docker Hub
• Docker Cloud

Docker Installation

• Docker Installation on Windows
• Docker Installation on Windows using Chocolatey
• Docker Installation on Ubuntu
• Docker Installation on macOS
• Docker Installation on Arch-based Linux
• Docker Installation on RedHat

Docker Commands

• Docker Instructions
• Run Commands Inside Containers
• USER Instruction

Docker Run

• Dockerfile
• Syntax of Dockerfile
• How to Build a Web Server Docker File?

Docker Images

• Docker Images
• Working with Images
• Publish Docker Images in Hub
• Create a Customized Image
• Use Image Tags
• How to use Next.js Image
• How to use Local Image with Minikube

Docker Compose

• Introduction to Docker Compose
• Compose tools to run Multi Container Apps

Docker Engine, Storage

• Docker Storage
• Docker Data Storage
• Backup Docker Container
• Manage Volumes using CLI

Docker Networking

• Docker Networking
• Docker Ports
• Creating a Network and connecting a Container
• Connecting Two Docker Containers Over the Same Network
• Default Bridge Networking
• Create your own secure Home Network using Pi-hole and Docker

Docker Registry

• Docker Registry
• Docker – Public Repositories
• Docker – Private Registries
• Creating a Private Repository and Push an Image to That Private Repository
• Using Public Repositories To Host Docker Images

Docker Containers and Managing Containers

• Containerization using Docker
• Docker Container Virtualization
• Docker Container for Node.js
• Remove Containers
• Push a Container Image to a Docker Repository
• Docker Container Linking
• Manage Containers using CLI
• Mount Volume inside Container
• Difference between Images and Container
• Difference between Virtual Machines and Containers
• How to Install Linux Package in Docker Container
• Copying Files to and from Docker Containers
• Run MongoDB as Container
• Container for Node.js
• Container for NGNIX
• How to Provide the Static IP to a Docker Container?

Docker Swarm

• Introduction to Docker Swarm
• Difference between Kubernetes and Docker Swarm

Miscellaneous

• Running a Java Application using Docker
• Running a PHP Application using Docker
• Running a Python Application using Docker
• How to Dockerize an ExpressJS App?
• How to Dockerize a ReactJS App?
• Docker Vs Kubernetes
• Deploying WebApps on Docker
• Docker Continuous Integration
• Difference Between Vagrant and Docker
• How to Setup Jenkins in Docker Container?

Docker Container: A Docker container is a lightweight and executable package of software. It includes everything used to run an application, code, libraries, and dependencies. You don’t need to allocate any memory for the application. It can automatically generate space according to the requirements.

Why to learn Docker?

A couple of years back, when organizations needed other applications, they buy a server without knowing the performance requirement of the software/application. This results waste of money and resources. Then Virtual machines come onto the market, which allows engineers to run multiple applications on the same resource but as a completely different server. But Every application to run on a Virtual machine requires OS and every OS needs its own CPU, RAM, etc. to run. Which increases the cost.

Then Docker Model comes into the scope, which overcomes the drawbacks of the Virtual Machine. It reduces the wastage of resources by sharing OS, memory, and CPU, and It offers many benefits for developers and system administrators, like consistency, portability, efficiency, security, scalability, and version control. These benefits make it easier to manage and deploy applications.

Features of Docker

• Docker reduces the size of development by providing a smaller part of the OS via containers.
• It is easier to work on the same project by different teams with the help of Containers.
• Docker containers can be deployed anywhere, on any physical, or virtual machines and on the cloud.
• Docker containers are lightweight so, it becomes easy to scale them.

Advantages of Docker

• Docker uses less memory.
• The full operating system is not required to run an application.
• Containers run faster than the other Virtual Machines.
• It is lightweight.
• It allows us to use a remote repository to share your containers with other teams.
• To reduce the risks, it uses dependencies.

Disadvantages of Docker

• Complexity will increase due to layering.
• It is difficult to manage a large number of containers.
• For an application that needs better graphics, Docker is not suitable for it.
• Cross-platform compatibility is not allowed.

Conclusion

Docker is a software development framework that allows you to package and run apps inside virtual machines on a server. It’s often used to create and test applications before deploying them on a real, physical server. This allows organizations to test and deploy their applications quickly and with minimal resources. Docker also makes it easy to package and update apps on any server, regardless of its hardware configuration.