This document provides a comprehensive guide for developers on getting started with Docker, covering key concepts such as containers, images, and Dockerfiles. It includes essential commands for managing Docker images, containers, and inspecting those containers. The author also shares personal insights and contact information for further engagement.

1. GETTING STARTED WITH DOCKER
(for developers)
BY: CURT GRATZ

8. ‣ Why you should contain
everything in containers
that contain things
‣ Everything about Docker
‣ Euclid's proof of the
infinitude of primes
What we won’t be covering

9. ‣ Learn about Docker from a developers
perspective
‣ Learn how to get started with Docker
‣ Learn the basic Docker commands you will use
every day as a developer
‣ Get Docker installed and running on your machine
What we will be covering

10. ‣ Husband
‣ Dad
‣ Coach
‣ Youth Leader
‣ Co-Owner of Computer Know How
‣ Member of Team ColdBox
‣ Open CFML Foundation Board
The Obligatory Who Am I?

11. ‣ Tried Docker
‣ Deployed Docker
‣ Installed Docker locally
‣ Written a Dockerfile
‣ An image on Docker Hub
Little about you

12. Matrix of Hell

13. How shipping solved the problem

14. How containers solve the problem

15. Docker is Open Source

16. Written in Go

17. Its not Ruby, so the Python
people are happy

18. Its not Python, so the Ruby
people are happy

19. Its not Node.JS, so most people
are happy

20. Its not Java, so everyone is happy

21. Its not CFML, so no one is happy

22. A contract between Dev and Ops

23. Build Once Run Anywhere

24. Cattle, not Pets

25. Install Party

27. Image
Image, a hierarchy of files, with meta-data for how
to run a container.

28. Container
Container, a contained running process, started
from an image.

29. Registry
Registry, a repository of images. - Public or Private

30. Dockerfile
Dockerfile, a script for creating images.

31. Volume
Storage outside the container.

33. Commands for images
‣ $ docker images # shows all images.
‣ $ docker import # creates an image from a tarball.
‣ $ docker build # creates image from Dockerfile.
‣ $ docker commit # creates image from a container.
‣ $ docker rmi # removes an image.
‣ $ docker history # list changes of an image.

34. Commands for Dockerfile
‣ FROM - The image the new image will be based on.
‣ COPY - Copy a file or dir into the image
‣ ADD - Like copy, but can be a URL or unpack a tar
‣ RUN - Ran a command inside the container
‣ ONBUILD - Run commands when building
‣ CMD - Default command to run
‣ ENV - Set a environment variable
‣ EXPOSE - expose a port
‣ VOLUME - Specify that a directory should be stored outside the union file
system

35. Commands for containers
‣ $ docker create # creates a container but does not start it.
‣ $ docker run # creates and starts a container.
‣ $ docker stop # stops it.
‣ $ docker start # will start it again.
‣ $ docker restart # restarts a container.
‣ $ docker rm # deletes a container.
‣ $ docker kill # sends a SIGKILL to a container.
‣ $ docker exec # executes a command in a running container.

36. Commands for inspecting
‣ $ docker ps # shows running containers.
‣ $ docker inspect # info on a container (incl. IP address).
‣ $ docker logs # gets logs from container.
‣ $ docker events # gets events from container.
‣ $ docker port # shows public facing port of container.
‣ $ docker top # shows running processes in container.
‣ $ docker diff # shows changed files in container's FS.
‣ $ docker stats # shows metrics, memory, cpu, filsystem

37. Demo time

38. “Thank you.”
–hold up applause sign here

39. ‣ Email - gratzc@compknowhow.com
‣ Blog - http://www.compknowhow.com/blog/
‣ Twitter - gratzc
‣ Skype - gratzc
‣ Snapchat - gratzc
‣ League of Legends - gratzc
Contact Info