Introduction to Cloud Foundry

Presented at Singapore Ruby Group

Transcript

1. Introduction to Cloud Foundry
   A Developer’s Perspective
   

   View Slide

2. Michael Cheng
   @CoderKungfu
   michaelccm@singaporepower.com.sg
   

   View Slide

3. Cloud Computing
   

   View Slide

4. Platform as a Service
   • Platform as a service (PaaS) is a category of cloud computing
   services that provides a platform allowing customers to develop,
   run, and manage applications without the complexity of building and
   maintaining the infrastructure typically associated with developing
   and launching an app.
   • Other people’s server, they maintain it, you just deploy your code +
   data.
   

   View Slide

5. Platform as a Service
   • Public Cloud - Heroku, Google App Engine, Red Hat’s OpenShift,
   AWS Elastic Beanstalk, IBM Bluemix, Azure App Services
   • Private Cloud - Cloud Foundry, OpenShift, Bluemix, Deis, Dokku
   

   View Slide

6. What is Cloud Foundry?
   • Cloud Foundry is a open source
   PaaS software.
   • Cloud Foundry is a platform for
   developing and running cloud
   applications.
   • 12 Factor Apps (http://12factor.net)
   

   View Slide

7. What is Cloud Foundry?
   • Works with many languages and
   frameworks.
   • A platform that allows you to
   automatically provision resources.
   • Enables continuous integration/
   continuous delivery.
   • Allows you to focus on writing cloud
   native applications.
   

   View Slide

8. Languages Supported
   • Java - Grails, Play, Spring, or any other JVM-based language or framework
   • Ruby - JRuby, Rack, Rails, or Sinatra
   • Node.js - Node or JavaScript
   • Binary
   • Go
   • PHP - Cake, Symfony, Zend, Nginx, or HTTPD
   • Python - Django or Flask
   • Staticfile - HTML, CSS, JavaScript, or Nginx
   

   View Slide

9. What is Pivotal Cloud Foundry?
   • Pivotal Cloud Foundry is a reference
   implementation of Cloud Foundry for
   the enterprise.
   • Open source software provides the
   basis for the Pivotal Cloud Foundry
   platform.
   • Pivotal offers additional commercial
   features, enterprise services,
   support, docs, certs, etc.
   

   View Slide

10. Cloud Foundry vs PCF
    • PCF is easier to install
    • Has nicer web GUI.
    • Additional features like auto-scaling,
    LDAP/AD (SAML) support, metrics
    server, notifications, Ops Metrics.
    • Many of the services come installed
    by default (MongoDB, Neo4J,
    RabbitMQ, Redis, etc).
    vs
    

    View Slide

11. View Slide

12. Pivotal Web Services (PWS)
    • Hosted version of PCF.
    • Exactly the same user experience /
    features.
    • Register for a free trial account.
    • http://run.pivotal.io
    

    View Slide

13. View Slide

14. View Slide

15. View Slide

16. View Slide

17. View Slide

18. View Slide

19. Organization
    Spaces
    Logical way of organising users and resources
    

    View Slide

20. View Slide

21. View Slide

22. View Slide

23. Using PCF
    • Mainly interface using the Command Line Interface (CLI)
    • Download the CF CLI here: https://console.run.pivotal.io/2/tools
    • Alternative download: https://github.com/cloudfoundry/
    cli#downloads
    

    View Slide

24. View Slide

25. Demo
    https://github.com/miccheng/rails-guestbook-demo
    

    View Slide

26. Deployment Manifest
    • Application manifests tell cf push what to do with applications.
    • This includes everything from how many instances to create and
    how much memory to allocate to what services applications should
    use.
    • YAML format.
    • Online Generator: http://cfmanigen.mybluemix.net
    

    View Slide

27. Login to app container
    • All apps run in a linux container (LXC)
    • You can SSH into the container if you need to take a look at what’s
    going on (eg. troubleshooting, verify file version, etc)
    • cf ssh -i
    

    View Slide

28. More things…
    • User-provided services - enable developers to use services that are
    not available in the marketplace with their applications running on
    Cloud Foundry.

    (Reference: http://docs.pivotal.io/pivotalcf/1-7/devguide/services/user-provided.html)
    • Managed Services for Cloud Foundry - services integrated with
    Cloud Foundry via APIs, and enable end users to provision reserved
    resources and credentials on demand.

    (Reference: http://docs.pivotal.io/pivotalcf/1-7/services/index.html)
    

    View Slide

29. Q&A
    

    View Slide

30. We are hiring!
    

    View Slide