Docker in a Flash

Lightning Talk for Women Who Code about using Docker for environment management.

Transcript

1. Docker
   in a Flash
   Alice Goldfuss
   @alicegoldfuss
   

   View Slide

2. I’m
   Alice
   SRE @
   

   View Slide

3. @alicegoldfuss
   WTF?
   Yay!
   Me
   

   View Slide

4. @alicegoldfuss
   WTF?
   Yay!
   Me Coworker
   

   View Slide

5. @alicegoldfuss
   Staging
   

   View Slide

6. @alicegoldfuss
   Staging Production
   

   View Slide

7. @alicegoldfuss
   Common factor?
   

   View Slide

8. @alicegoldfuss
   The
   Environment
   @alicegoldfuss
   

   View Slide

9. @alicegoldfuss
   

   View Slide

10. @alicegoldfuss
    Docker Basics
    - Containerization software
    - Open source
    o github.com/docker/docker
    - Linux only
    

    View Slide

11. @alicegoldfuss
    VMs
    host OS
    hypervisor
    guest OS guest OS
    bin / lib bin / lib
    app A app B
    

    View Slide

12. @alicegoldfuss
    VMs Containers
    host OS host OS
    hypervisor Docker engine
    guest OS guest OS
    bin / lib bin / lib
    app A app B
    bin / lib bin / lib
    app A app B app B
    

    View Slide

13. @alicegoldfuss
    Dockerfile
    

    View Slide

14. @alicegoldfuss
    Dockerfile
    Image
    

    View Slide

15. @alicegoldfuss
    Image
    Container
    Dockerfile
    

    View Slide

16. @alicegoldfuss
    # Example my_app/Dockerfile
    # Pull base image.
    FROM dockerfile/ubuntu
    # Install Ruby.
    RUN apt-get install -y ruby
    # Install Sinatra.
    RUN gem install sinatra
    

    View Slide

17. @alicegoldfuss
    # Example my_app/Dockerfile
    # Pull base image.
    FROM dockerfile/ubuntu <-- image layer
    # Install Ruby.
    RUN apt-get install -y ruby <-- image layer
    # Install Sinatra.
    RUN gem install sinatra <-- image layer
    

    View Slide

18. @alicegoldfuss
    ubuntu
    ruby
    sinatra
    your image
    

    View Slide

19. @alicegoldfuss
    your image
    container container container
    

    View Slide

20. @alicegoldfuss
    Share it!
    Yay! Divine!
    your image
    

    View Slide

21. @alicegoldfuss
    Ship it!
    your image your image
    

    View Slide

22. @alicegoldfuss
    Ship it!
    your image
    your image
    your image
    your image
    your image
    your image
    

    View Slide

23. @alicegoldfuss
    Docker at New Relic
    docker host 1 docker host 2
    docker host 3 docker host 4
    

    View Slide

24. @alicegoldfuss
    Docker Tools
    - Centurion
    o github.com/newrelic/centurion
    - Dogestry
    o github.com/dogestry/dogestry
    

    View Slide

25. Thanks!
    @alicegoldfuss
    

    View Slide