Docker

Images

• images — list local images
• pull — download an image from hub
• search — search hub for images
• build
• rmi

Containers

• create — create a container
• start — start a stopped container
• run — create and start a container
• stop — stop a running container
• ps -a — list all running and stopped containers

• rm — remove a container

• attach — connect to a running bash prompt (for example)
• logs -f — watch terminal output
• top — inspect processes in container
• exec — run a one-off process in an already-running container
• cp — copy files to/from the container

Cookbook

• run -it [image] [command] - creates a container out of an image and runs a command in it
• run -it [image] /bin/bash - creates a container out of an image and opens you a shell in it
• run --name [new-container] [image]
• logs -f [container]
• exec -it [container] [command] - run a command in a running container
• exec -it [container] /bin/bash - log you in to a running container

Run a temporary container:

Dockerfile in this folder:

docker run --rm -it -v $(pwd):/myapp $(docker build -q .)

docker build . - build an image from the Dockerfile in the current directory

• -q output the built image hash

• $() insert that built image hash

• docker run - run a container
• --rm - remove the container when done
• -it - interactive terminal
• -v mount a volume
• $(pwd) - current directory
• /myapp - path within the container