docker1.txt

# Docker

Docker is a automation tool that helps in easy deployement 
of software and run applications using 
containers.

# Containers:-
     Containers allows a developer to package up an application
with all the parts its need, such as library,database and others, and
ship them all togerther as a single package.

# How docker works

Docker forms a docker image using dockerfile.
  Dockerfile consists of application , requirement etc.
Then this docker image launch a docker container which is a run time instance

@ To find docker images docker hub is one of the best source.

Docker architecture contains 
1. Docker Client
2. Docker Server

Basics terminology that you must aware of:-
1. Dockerfile
2. Docker images
3. Docker Containers
4. Docker Hub/ Registry
5. Docker Client
6. Docker Server
7. Docker Engine


# Benefits of using Docker

1. Build app only once
2. No worries that the application will not perform the same way it did on testing env
3.Portability
4.Version Control
5.Isolation
6.Productivity
7.Docker simplifies
DevOps

# if you don't want to install docker on your OS then you can work on it online through "play with docker" or katakuda.