Managing Containers

Managing containers is one of the most common tasks you’ll perform in Docker. This guide covers how to run, list, stop, and remove containers, along with some powerful flags to customize their behavior. 🚀

1. Running Containers

The docker run command is used to create and start a new container from an image.

Basic Run

docker run <image_name>

Advanced Run Flags

Detached Mode (-d): Runs the container in the background.
Terminal window
```
docker run -d <image_name>
```
Naming a Container (--name): Assigns a specific name to your container.
Terminal window
```
docker run --name my-container <image_name>
```
Port Mapping (-p): Maps a host port to a container port.
Terminal window
```
docker run -p 8080:80 <image_name>
```
Volume Mounting (-v): Syncs a local directory with a container directory.
Terminal window
```
docker run -v $(pwd):/app <image_name>
```
Interactive Shell (-it): Runs the container and opens an interactive terminal.
Terminal window
```
docker run -it <image_name> sh
```

2. Monitoring & Logs

List Running Containers:
Terminal window
```
docker ps
```
List All Containers (including stopped):
Terminal window
```
docker ps -a
```
View Container Logs:
Terminal window
```
docker logs <container_id_or_name>
```
Attach to a Running Container:
Terminal window
```
docker attach <container_id_or_name>
```

3. Stopping & Starting

Stop a Container:
Terminal window
```
docker stop <container_id_or_name>
```
Start a Stopped Container:
Terminal window
```
docker start <container_id_or_name>
```
Kill a Container (force stop):
Terminal window
```
docker kill <container_id_or_name>
```

4. Removing Containers

Remove a Stopped Container:
Terminal window
```
docker rm <container_id_or_name>
```
Force Remove a Running Container:
Terminal window
```
docker rm -f <container_id_or_name>
```
Remove All Stopped Containers:
Terminal window
```
docker container prune
```

5. File Operations

Copy Files: Copy files/folders between a container and the local filesystem.
Terminal window
```
docker cp <container_id>:/path/to/file ./
```

Pro Tip: Clean Up Everything 🧹

To stop all running containers at once, you can use:

docker stop $(docker ps -q)

And to remove all stopped containers, use docker container prune!