# Docker Cheatsheet

### **Docker Concepts:**

1. Images: Read-only templates used to create Docker containers.
    
2. Containers: Running instances of Docker images.
    
3. Dockerfile: A text file that contains instructions to build a Docker image.
    
4. Docker Registry: A centralized repository for storing and sharing Docker images (e.g., Docker Hub).
    

### Commands for Installing Docker

Installing docker on Ubuntu machine-

sudo apt install [**docker.io**](http://docker.io)

### Basic Docker Commands

Image Management:

* `docker images`: List all available Docker images.
    
* `docker pull <image_name>`: Download an image from a registry.
    
* `docker build -t <image_name> <path_to_dockerfile>`: Build an image using a Dockerfile.
    
* `docker rmi <image_name>`: Remove an image.
    

1. Container Management:
    
    * `docker run <image_name>`: Create and start a new container from an image.
        
    * `docker ps`: List running containers.
        
    * `docker ps -a`: List all containers (including stopped ones).
        
    * `docker start <container_id>`: Start a stopped container.
        
    * `docker stop <container_id>`: Stop a running container.
        
    * `docker rm <container_id>`: Remove a container.
        
2. Interacting with Containers:
    
    * `docker exec -it <container_id> <command>`: Run a command inside a running container.
        
    * `docker cp <container_id>:<container_path> <host_path>`: Copy files between a container and the host.
        
3. Networking:
    
    * `docker network ls`: List Docker networks.
        
    * `docker network create <network_name>`: Create a new Docker network.
        
    * `docker network connect <network_name> <container_id>`: Connect a container to a network.
        
4. Volumes:
    
    * `docker volume ls`: List Docker volumes.
        
    * `docker volume create <volume_name>`: Create a new Docker volume.
        
    * `docker run -v <volume_name>:<container_path> <image_name>`: Mount a volume in a container.
        
5. Docker Compose:
    
    * `docker-compose up`: Create and start containers defined in a Compose file.
        
    * `docker-compose down`: Stop and remove containers defined in a Compose file.
        
6. Miscellaneous:
    
    * `docker logs <container_id>`: View the logs of a container.
        
    * `docker inspect <container_id>`: Get detailed information about a container.
        

**Thanks for Reading!**