Docker has become an indispensable tool in the world of software development and deployment. It enables developers to create, deploy, and run applications in lightweight, portable containers. Whether you're a seasoned Docker user or just getting started, having a cheat sheet of basic Docker commands can be incredibly helpful. In this guide, we'll provide you with a handy Docker command cheat sheet to keep at your fingertips.
Prerequisites
Before you dive into Docker commands, make sure you have Docker installed on your system. You can download and install Docker from the official Docker website.
Docker Basics
1. Check Docker Version
To verify that Docker is installed and see its version:
docker --version
2. Display Docker Info
For detailed information about your Docker installation:
docker info
3. List Running Containers
To see the list of running containers:
docker ps
4. List All Containers
To see all containers, including stopped ones:
docker ps -a
5. Pull Docker Image
To download a Docker image from a registry (e.g., Docker Hub):
docker pull <image_name>
6. Search for Docker Images
To search for Docker images on Docker Hub:
docker search <image_name>
7. Run a Docker Container
To start a container based on an image:
docker run <image_name>
Add the -d flag to run the container in detached mode.
8. Stop a Running Container
To stop a running container gracefully:
docker stop <container_id>
9. Remove a Container
To remove a stopped container:
docker rm <container_id>
10. Remove an Image
To remove a Docker image:
docker rmi <image_name>
11. List Docker Images
To list all locally available Docker images:
docker images
12. Display Container Logs
To view the logs of a running container:
docker logs <container_id>
13. Execute Commands Inside a Container
To run a command inside a running container:
docker exec -it <container_id> <command>
14. Copy Files To/From a Container
To copy files to/from a container:
docker cp <file> <container_id>:<destination_path>
15. Inspect Container/Network/Volume
To view detailed information about a container/network/volume:
docker inspect <container_id>/<network_name>/<volume_name>
Conclusion
This Docker command cheat sheet provides a quick reference to essential Docker commands that every developer should be familiar with. Docker simplifies the process of building, deploying, and scaling applications, making it a valuable tool for modern software development.
Remember that this is just the tip of the iceberg when it comes to Docker's capabilities. As you become more experienced with Docker, you'll discover many more advanced commands and features to enhance your containerization workflow. Docker's official documentation is a fantastic resource to explore those advanced topics further.
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