Essential Docker Commands

Image Management

Pull an Image from Docker Hub

docker pull image_name:tag

List Downloaded Images

docker images

Remove an Image

docker rmi image_name:tag

Container Lifecycle

Create a Container

docker run --name -d container_name image_name:tag

• --name -> give name to container

• -d -> detach mode. Container will run in background.

Container with Port Mapping

docker run -d -p 3000:5173 --name rc1 react-image

• -p -> Map port 3000 of host machine to 5173 port exposed by the docker container

Start a Container

docker start container_name

Stop a Running Container

docker stop container_name

Restart a Container

docker restart container_name

Remove a Stopped Container

docker rm container_name

Container Management

List Running Containers

docker ps

List All Containers (Including Stopped)

docker ps -a

View Logs of a Container

docker logs container_name

Access a Shell Inside a Container

docker exec -it container_name /bin/sh

• it -> runs the Docker image in interactive mode (keep Standard Input Stream)

• /bin/bash -> shell inside the container

Networking

List Docker Networks

docker network ls

Create a Docker Network

docker network create new_name # new bridge netwok will be created

Container with New Network

docker run -d --network=new_name --name secure image_name

Volume Management

Create a Volume

docker volume create volume_name

List Volumes

`docker volume ls

Attach a Volume to a Container

# docker run -v dirLocalDirectory:dirContainerDirectory -d -p 3000:5173 --name rc1 react-image
docker run -v $(pwd):/app/ -d -p 3000:5173 --name rc1 react-image

Docker Compose (for Multi-Container Applications)

Start Containers Defined in a Compose File

docker-compose up

Stop and Remove Containers Defined in a Compose File

docker-compose down

Rebuild Images each time

docker-compose up --build

Cleanup

Remove All Stopped Containers

docker container prune

Remove All Unused Images

docker image prune

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There are many more commands to go with, but these are some of the most basic and important ones.

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