Docker Cheat Sheet

Docker Cheat Sheet


Continuing our series of cheat sheets here is a look at Docker.

If like me you have a million things going through your head, cheat sheets can be an amazing bible to have to reference. To find out some core information about Docker take a look here

Take a look at this collection of commands.

Build Commands

Build an image from the Dockerfile in the current directory and tag the image

  • docker build -t myimage:1.0

  • List all images that are locally stored with the Docker Engine

  • docker image ls

  • Delete an image from the local image store

  • docker image rm alpine:3.4
  • Run Commands

    Run a container from the Alpine version 3.9 image, name the running container “web” and expose port 5000 externally, mapped to port 80 inside the container.

  • docker container run –name web -p 5000:80 alpine:3.9

  • Stop a running container through SIGTERM

  • docker container stop web

  • Stop a running container through SIGKILL

  • docker container kill web

  • List the networks

  • docker network ls

  • List the running containers (add –all to include stopped containers)

  • docker container ls

  • Delete all running and stopped containers

  • docker container rm -f $(docker ps -aq)

  • Print the last 100 lines of a container’s logs

  • docker container logs –tail 100 web
  • Share Commands

    Pull an image from a registry

  • docker pull myimage:1.0

  • Retag a local image with a new image name and tag

  • docker tag myimage:1.0 myrepo/myimage:2.0

  • Push an image to a registry

  • docker push myrepo/myimage:2.0
  • Docker Management Commands

    All commands below are called as options to the base docker command. Run docker –help for more information on a particular command.

  • app* – Docker Application
  • assemble* – Framework-aware builds (Docker Enterprise)
  • builder – Manage builds
  • cluster – Manage Docker clusters (Docker Enterprise)
  • config – Manage Docker configs
  • context – Manage contexts
  • engine – Manage the docker Engine
  • image – Manage images
  • network – Manage networks
  • node – Manage Swarm nodes
  • plugin – Manage plugins
  • registry* – Manage Docker registries
  • secret – Manage Docker secrets
  • service – Manage services
  • stack – Manage Docker stacks
  • swarm – Manage swarm
  • system – Manage Docker
  • template* – Quickly scaffold services (Docker Enterprise)
  • trust – Manage trust on Docker images
  • volume – Manage volumes
  • Here is a tutorial for Docker, it is 2 hours long but it starts from the beginning and by the end you will be comfortable with understanding and using Docker.

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    Date: July 13, 2020

    Author: Magnetar IT

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