Learning Docker Compose
What is YAML
YAML is a data serialization language that is often used for writing configuration files. These files have the extension .yml or .yaml.The file consists of key-value pairs and is case-sensitive.YAML is very similar to XML and JSON.
Docker compose
Docker compose uses YAML files , with which we can build and run together multiple containers.
example:
version: '3.9'
services:
web:
image: ubuntu
ports:
- "8000:8000"
the above YAML is same as running the following command :
docker run -d -p 8000:8000 --name web ubuntu
Running multiple containers
For example, we want to run 2 different containers having Mongodb and nginx simultaneously:
- Write a YAML file
docker-compose config:will show if the YAML file has any errordocker-compose -f <yaml_file_name> up: Create and start containers
once you have run the above command all the containers mentioned will get created, You can check by running localHost_ip:27017 and localHost_ip:8001 inside your Chrome.
if you want to stop all the containers you can use,
docker-compose -f <yaml_file_name> down.if you want to check the logs of the container,
docker logs container
Thank you for reading!!