Lifthub is a lift platform as a service that allows users to host lift-based applications with ease, offering web and git access without complicated settings. It features a seamless development cycle including template selection, MySQL database integration, and an isolated environment for user applications. Future plans include support for more components and resources, as well as a beta testing phase allowing a growing number of users.

1. Lifthub #2 Lift Platform as a Service Kazuo KASHIMA @k4200 (English) @kaigaiengineer (Japanese) d.hatena.ne.jp/k4200

2. Table of Contents Introduction Demo Architecture Program Future

3. INTRODUCTION

4. What is Lifthub? (rpscala 26) In short, Lift version of Heroku. http:// heroku.com / Users can host Lift based apps. No complicated settings Access via web and git Experimental project, at this moment. http:// www.lifthub.net /

5. What is Lift? “ The most powerful, most secure web framework” Has lots of cutting edge features. Seamless Ajax support “ Designer friendly templates” (CSS selectors) Security implemented by default (and behind the scene) Next Rails?

6. How to use Lifthub? Sign up and register your SSH public key. Create a project. Choose a template (NEW) Choose a database (Currently, only MySQL) Development git pull git push Deploy the app using the UI. Run & have fun!

7. DEMO

8. ARCHITECTURE

9. Old (rpscala 26) nginx MySQL Server Manager ： ： User applications Management application jetty Lifthub Port 80 Port 9000 Port 9001 Port 9xxx Port 8080 deploy start/stop requests create jetty a.war jetty b.war jetty x.war

10. New MySQL nginx MySQL Server Manager ： User apps Management app Port 80 127.0.m.n deploy create/start/stop requests FreeBSD jail Process ： GitRepo Manager 127.0.x.y Gitorious (ngix+passenger) create jetty a.war jetty x.war jetty Lifthub Scala Remote actor

11. Environment User applications Lift 2.2 and 2.3 based templates Jetty 6 (7 will be supported soon.) FreeBSD jail (FreeBSD 8.2) Amazon EC2 Management application Lift 2.2 Jetty 6 Ubuntu 10.04.2 LTS Sakura VPS

12. Reverse proxy Each user app Runs in a jail (isolated environment). Has a local IP address (127.0.x.y). *.lifthub.net -> 111.171.209.16 Nginx works as a reverse proxy. http://appfoo.lifthub.net/ -> 127.0.m.n:8080 http://appbar.lifthub.net/ -> 127.0.x.y:8080

13. Development cycle Lifthub Gitorious jetty MySQL ssh key Create user & Register ssh key Register Create project git pull Create Create git push Build & deploy a.war sbt package etc. proj-a proj-a proj-a sbt

14. PROGRAM

15. Components Web UI Lift native features MegaProtoUser CRUDify CSS Selectors External library JGit Akka Server Manager (Akka Remote Actor) Calls “sbt” command

16. Components (cont’d) GitRepoManager (Akka Remote Actor) Calls ruby scripts to access Gitorious https://github.com/k4200/gitorious-script

17. Other programs and libraries Gitorious Github clone (?) More features than gitosis. Setup isn’t easy. http://gitorious.org/gitorious JGit Java implementation of git http://www.jgit.org/ Commons Exec http:// commons.apache.org /exec/

18. Tips sbt sub projects (rpscala 26) http://d.hatena.ne.jp/k4200/20110211/1297416108 Akka Remote Actors (coming soon?) JGit http://d.hatena.ne.jp/k4200/20110304/1299244614 http://d.hatena.ne.jp/k4200/20110321/1300691773

19. FUTURE

20. Schedule Date Plan ～ Apr Development (alpha) 2~3 users May Closed beta ~ 20 users June Beta ~ 100 users July Release

21. TODO Create more templates Different scenarios Different components More components PostgreSQL KVS Document DBs Media servers etc.

22. TODO (cont’d) Resource management Memory (-Xmx) Disk (quota ?) CPU Best effort for non-paid users Allocate separate EC2 instances to paid users? Nice UI! Documents and tutorials

23. Help needed! Testers Developers Anyone interested in Scala and/or Lift Designer