Docker Command Cheatsheet | iℏ∮dͩ𝛑•💕

Common Docker Commands

Operation	Command	Explanation
Run a container	`docker run -it <image_name>`	Starts a container interactively (`-i` keeps STDIN open, `-t` allocates a pseudo-TTY).
SSH into a container	`docker exec -it <container_id> /bin/bash`	Executes an interactive bash shell inside a running container.
Bind local folder	`docker run -v /host/path:/container/path <image_name>`	Mounts a host directory (`/host/path`) into the container (`/container/path`).
Change port binding	`docker run -p <host_port>:<container_port> <image_name>`	Maps the host’s port (e.g., `8080`) to the container’s port (e.g., `80`).
List running containers	`docker ps`	Shows all active containers. Add `-a` to include stopped containers.
Remove a container	`docker rm <container_id>`	Deletes a stopped container. Use `-f` to force removal of a running container.
List images	`docker images`	Displays all locally stored Docker images.
Remove an image	`docker rmi <image_id>`	Deletes a Docker image. Use `-f` to force removal.
Build an image	`docker build -t <tag_name> <path_to_Dockerfile>`	Builds an image from a `Dockerfile` in the specified directory.
Copy files to container	`docker cp /host/file <container_id>:/container/path`	Copies a file from the host to a running container.
View logs	`docker logs <container_id>`	Displays the logs of a container. Add `-f` to follow live logs.
Stop a container	`docker stop <container_id>`	Gracefully stops a running container.
Start a stopped container	`docker start <container_id>`	Restarts a stopped container.

Notes:

Replace <image_name>, <container_id>, and paths with actual values.
For port binding, ensure the host port is available (e.g., -p 8080:80).
Use docker --help or man docker for detailed syntax.

Example for port binding and volume mounting:

docker run -p 8080:80 -v /home/user/data:/app/data nginx

This runs an Nginx container with host port 8080 mapped to container port 80 and mounts /home/user/data to /app/data.