Common Commands
Containers
docker run node
Runs and instances of an image. If the image does not exist docker will pull an instance
docker ps
List running containers and basic information
docker ps -a
List containers both running or stopped and basic information
docker stop silly_sammet
Stops a running container
docker rm silly_sammet
Remove a stopped container run docker ps -a to confirm removal
docker run -p 80:80 docker/getting-started
Runs docker in the foreground
docker run -d -p 80:80 docker/getting-started
the -d flag will run docker in the background
docker attach <id>
or
docker attach <name>
Interactive Terminal
By default docker containers do not accept inputs through the terminal to enable this use the -it flag for interactive terminal
docker run -it
Port Mapping
docker
Tags
docker run node:12
A tag is a flag to specify a particular flavor of an image, the command without a tag will default to latest
Images
Show Images
docker images
Remove an Image
Note: the image cannot be in use by any container
docker rmi node
docker run node
Runs and image if the image already exists on machine else pulls latest image and runs.
Run Container
docker run --rm -it -p 3000:3000/tcp <imageName>
docker pull node
Pulls an instance of an image
Containers only run as log as the process they contain is running is live, such as a database or web service.
Build Image
docker build .
or
docker build ./path/to/dir
or best practice tag your image with a name
docker build . -t <imageName>
Reference
For Review
- port mapping
- volume mapping