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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 database=4
References:
https://hub.docker.com
https://github.com/docker/compose/releases
https://docs.docker.com/compose/compose-file/
https://www.google.co.in/search?q=microservices+example&rlz=1C5CHFA_enIN734IN734&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjE3LPQqYfcAhXGpY8KHQHmB4gQ_AUICigB#imgrc=4466IjbSng_wcM:
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