Docker Cheatsheet

Welcome to the Docker Cheatsheet! This cheat sheet provides a quick reference to essential Docker commands and their usage. Docker is a powerful platform for developing, shipping, and running applications in containers.

Table of Contents

• List All Available Images
• Pull an Image
• List Running Containers
• List All Containers
• Start a Container
• Run a Container
• Run a Container with Options
• Stop a Container
• Kill a Container
• Remove a Container
• Remove a Container (Forcefully)
• Prune Images
• Prune Containers
• Exec command

List all available images

docker images

Pull an image

docker pull <image_name>:<tag>

Pull the latest version of an image (if the tag is not mentioned)

List running containers

docker ps

List all containers

docker ps -a

Start a container

docker start <container_name/id>

Run a container

docker run <image_name>

Create and start a container, giving it a random name

Run a container with options

docker run -d -p <host_port>:<container_port> --rm --name <container_name> <image_name>

Create and run a container with the specified options:

• -d: Run the container in detach mode, which means the container continues running even if we kill the terminal.
• -p <host_port>:<container_port>: Map a port on the host to a port on the container.
• --rm: Automatically remove the container when it exits.
• --name <container_name>: Specify a custom name for the container.
• -it: Run the container in interactive mode (Eg. docker run -it node).
• -e: Used for mentioning the environment variables.
• -v: For mind bound volumes. Syntax: -v hostmachine_working_directory:docker_container_directory. Eg. -v ($pwd):/app ( ($pwd) is a shortcut for getting current directory in mac or linux )

Stop a container

docker stop <container_name/id>

Stop a running container with cleanup

Kill a container

docker kill <container_name/id>

Forcefully terminate a container without cleanup

Remove a container

docker rm <container_name/id>

Remove a container forcefully

docker rm -f <container_name/id>

Forcefully remove a container (even if it's not stopped)

Prune images

docker image prune 

Remove all unused images

Prune containers

docker container prune

Remove all unused containers

Exec command

docker exec [OPTIONS] <container_name/id> COMMAND [ARG...]

To execute a command inside a running container.(Eg. docker exec -it my-sql-container bash)