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Video of What is Docker Compose How to create docker compose file How to use Compose in Docker course by Automation Step by Step channel, video No. 13 free certified online
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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/releases
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 database4
References:
https://hub.docker.com
https://github.com/docker/compose/releases
https://docs.docker.com/compose/compose-file/
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