Differences between Docker and Docker Compose
Both docker and docker composedocker run Docker containers. The two Docker constructs are comparable, but that's about it.
This article will discuss docker composethe main differences between docker and .
Differences between Docker and Docker Compose
The key difference between docker and docker compose is that docker relies solely on the command line (CLI), while docker compose receives configuration information from a YAML file.
The second key difference is that docker-compose can configure and operate multiple containers, while docker can only start one container at a time.
Run the Docker CLI
The Docker engine manages individual containers through the docker CLI. To contact the Docker daemon API, use the client command line.
Sample code:
docker run -d --rm --name=my-website --cpus=1.5 --memory=1048m -p 80:80 -v /usr/share/nginx/html/ nginx:latest
At the same time, we can use the docker-compose CLI to manage multi-container applications. It also moves many of the options you would enter on the docker run CLI into the docker-compose.yml file for easy reuse.
It acts as a staging area on top of the same Docker API used by docker, allowing us to leverage docker commands and a host of shell scripts to accomplish anything that docker compose can accomplish.
YAML file:
version: '3.9'
services:
nginx-test-service:
container_name: sample-website
image: nginx:latest
cpus: 1.5
mem_limit: 1024m
ports:
- "80:80"
volumes:
/usr/share/nginx/html
Example code:
$ docker-compose up -d --rm
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