What is Docker Compose | How to create docker compose file | How to use Compose

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I am Raghav & Today we will learn :
1. What | Why - Docker Compose
2. How to install
3. How to create docker compose file
4. How to use docker compose file to create services
5. Basic Commands

TIPS
Docker compose
: tool for defining & running multi-container docker applications
: use yaml files to configure application services (docker-compose.yml)
: can start all services with a single command : docker compose up
: can stop all services with a single command : docker compose down
: can scale up selected services when required

Step 1 : install docker compose
  (already installed on windows and mac with docker)
  docker-compose -v
 
  2 Ways

  1.  https://github.com/docker/compose/rel...

  2. Using PIP
   pip install -U docker-compose

Step 2 : Create docker compose file at any location on your system
  docker-compose.yml

Step 3 : Check the validity of file by command
   docker-compose config

Step 4 : Run docker-compose.yml file by command
  docker-compose up -d

Steps 5 : Bring down application by command
  docker-compose down

TIPS
How to scale services

—scale
docker-compose up -d --scale database=4

References:
https://hub.docker.com

https://github.com/docker/compose/rel...

https://docs.docker.com/compose/compo...

https://www.google.co.in/search?q=mic...
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