🚀 Docker Commands You Must Know! 🐳

Docker simplifies application deployment, making it easier to build, ship, and run applications anywhere. Whether you're a beginner or a seasoned developer, here are the key Docker commands you should have at your fingertips!

🚀 Why Do We Need Docker? 🐳

"It works on my machine" Problem 🛑
Developers often face issues where an application works on one system but fails on another due to different environments, dependencies, or OS configurations. Docker solves this by containerizing applications, ensuring consistency across different machines.

🔹Docker Basics

docker version        # Check Docker version  
docker info           # Get system-wide information  
docker help           # Get help on Docker commands  

🔹Managing Containers

docker ps                      # List running containers  
docker ps -a                   # List all containers (including stopped ones)  
docker run <image>             # Run a container from an image  
docker start <container_id>    # Start a stopped container  
docker stop <container_id>     # Stop a running container  
docker restart <container_id>  # Restart a container  
docker rm <container_id>       # Remove a container  
docker logs <container_id>     # View container logs  

🔹Working with Images

docker images             # List all images  
docker pull <image>       # Download an image from Docker Hub  
docker build -t <name> .  # Build an image from a Dockerfile  
docker rmi <image_id>     # Remove an image  

🔹Executing Commands in Containers

docker exec -it <container_id> bash       # Access a running container  
docker inspect <container_id>             # Get detailed container info  
docker cp <container_id>:/path/to/file .  # Copy file from container  

🔹** Volumes & Storage**

docker volume create <volume_name>  # Create a volume  
docker volume ls                    # List volumes  
docker volume rm <volume_name>      # Remove a volume  
docker run -v <volume_name>:/app <image> # Mount a volume to a container  

🔹Networking in Docker

docker network ls                      # List networks  
docker network create <network_name>   # Create a custom network  
docker network connect <network_name> <container_id> # Connect a container to a network  
docker network inspect <network_name>  # Get details of a network  

🔹Docker Compose

docker-compose up -d  # Start services in the background  
docker-compose down   # Stop and remove containers  
docker-compose ps     # List services  
docker-compose logs   # View logs of all services  

🔹Clean Up Docker Resources

docker system prune -a          # Remove unused data, containers, and images  
docker volume prune             # Remove unused volumes  
docker network prune            # Remove unused networks  
docker rmi $(docker images -q)  # Remove all images  
docker rm $(docker ps -aq)      # Remove all containers  

🔥 Mastering these commands will make your Docker experience much smoother! Which one do you use the most? Let me know in the comments! 👇