Getting Started with Docker

Slides for a talk I gave at the [Franklin developer lunch & learn](http://www.meetup.com/franklin-developer-lunch/events/229490023/). The related repo is available on [GitHub](https://github.com/leejones/docker-lunch-and-learn).

Transcript

1. GETTING STARTED WITH DOCKER / Lee Jones @scribblethink image source: docker.com
2. LONELY PLANET Web Operations Engineer
3. WHAT IS DOCKER? Docker allows you to package an application with all of its dependencies into a standardized unit for so ware development. docker.com/what-docker
4. TOOLS + WORKFLOWS
5. SOFTWARE LIFECYCLE DEVELOP -> TEST -> DEPLOY -> OPERATE docker can be leveraged at each point
6. SIMPLIFY LOCAL DEVELOPMENT SETUP bin/setup
7. VIDEOS 2 WATCH A web application for noting videos that you want to watch later. 2 components Ruby on Rails web application Postgresql database
8. TOOLS
9. TERMINOLOGY is a good reference for terminology docs.docker.com
10. DOCKER (ENGINE) client daemon (server) image source: docs.docker.com
11. IMAGE The read-only artifact that Docker "builds" Images contain one or more layers.
12. DOCKERFILE The blueprint for building an image
13. DOCKERIZE Adding docker to a project
14. TAG A human readable reference to a specific image
15. REGISTRY A public or private repository where images are stored
16. CONTAINER The execution environment where your service or task runs
17. DOCKER COMPOSE A tool for orchestrating containers in development
18. DOCKER MACHINE A tool for managing docker hosts
19. INSTALLATION Install on , , or . Linux Mac Windows
20. DOCKER TOOLBOX recommended method for Mac or Windows users (for now) image source: docker.com
21. DOCKER MACHINE image source: docs.docker.com
22. DOCKER FOR MAC AND WINDOWS Docker announced beta on March 24, 2016. Docker for Mac and Windows
23. HELLO-WORLD docker run hello-world
24. OUTPUT $> docker run hello-world Hello from Docker. This message shows that your installation appear To generate this message, Docker took the follow 1. The Docker client contacted the Docker daemo 2. The Docker daemon pulled the "hello-world"
25. DOCKER HUB You can find the on Docker Hub. hello-world image
26. DOCKERFILE FROM scratch COPY hello / CMD ["/hello"]
27. WORKFLOWS
28. VIDEOS 2 WATCH EXAMPLE EXPLAINED Understanding what's going on in bin/setup.
29. DOCKERFILE FROM ruby:2.2.4 RUN apt-get update -qq && apt-get install -y bui RUN mkdir /videos2watch WORKDIR /videos2watch ADD Gemfile /videos2watch/Gemfile ADD Gemfile.lock /videos2watch/Gemfile.lock RUN bundle install ADD . /videos2watch
30. DOCKER-COMPOSE.YML version: '2' services: db: image: postgres:9.1 web: build: . command: bundle exec unicorn -p 3000 -o volumes:
31. CONFIG/DATABASE.YML development: &development adapter: postgresql database: videos2watch_development username: postgres password: host: db test: &test
32. BIN/SETUP echo "## Starting Postgresql..." docker-compose up -d db sleep 5 # wait for database to start echo "## Setting up databases..." docker-compose run --rm web rake db:setup docker-compose run --rm -e RAILS_ENV=test web ra
33. DOCKER MACHINE
34. EDIT A VIEW
35. TEST SUITE
36. CONSOLE
37. LEARN MORE (I highly recommend) (they are really good) The Docker Book Docker Docs Best practices for writing Dockerfiles
38. THANK YOU! The slides, notes, and Dockerfile from this presentation are available at . github.com/leejones/docker-lunch-and-learn / Lee Jones @scribblethink