With the rise of cloud computing and the death of the Xserve, learn how you can deploy your WebObjects applications on a Linode private virtual server.

1. MONTREAL 1/3 JULY 2011
Deploying to Ubuntu on Linode
David LeBer
Align Software Inc.

2. Overview
• What
• Why
• How
• Q&A

4. Linode Overview
• VPS Supplier
• Xen Virtualized Servers
• Multiple available Linux Distros
• Distributed data centers (1 x UK, 4 x USA)
• Multiple Linode sizes
• Pro-rated billing

5. Linode Sizes

6. Why Linode
• Familiar distros (Ubuntu 10.04 LTS)
• Pricing
• Pooled bandwidth
• Awesome performance (IO and network)
• Private network access
• Free DNS
• Virtual console (Lish)

7. Linode Creation

8. Creating a Linode - 1

9. Creating a Linode - 2

10. Creating a Linode - 3

11. Creating a Linode - 4

12. Creating a Linode - 5

13. Creating a Linode - 6

14. Creating a Linode - 7

15. Creating a Linode - 8

16. KEEP NOTES!

17. Preliminary Setup
• Apply Updates:
• sudo apt-get update
• sudo apt-get upgrade --show-upgradegraded
• Set hostname
• echo "demo" > /etc/hostname
• hostname -F /etc/hostname

18. Preliminary Setup
• Configure Network:
• Add private IP
• sudo nano /etc/network/interfaces
• Edit hosts file
• nano /etc/hosts
• Configure DNS

19. Preliminary Setup
• Set Timezone
• dpkg-reconfigure tzdata
• Create admin user
• adduser admin

20. Preliminary Setup
• Add admin user to /etc/sudoers
• visudo
• add “admin ALL=(ALL) ALL” to User priveleges
• Test ssh login with admin
• Test sudo with admin

21. Secure SSH
• On Linode (as admin)
• cd ~
• mkdir .ssh
• On local machine
• ssh-keygen -t dsa
• ssh admin@demo.domain.com "echo `cat ~/.ssh/id_dsa.pub`
>> ~/.ssh/authorized_keys"

22. Secure SSH
• Test login
• sudo nano /etc/ssh/sshd_config
• Change port: Port 22022
• Disable root login: PermitRootLogin no
• Allow only admin user: AllowUsers admin
• Disable password auth: PasswordAuthentication no

23. Secure SSH
• Restart: sudo /etc/init.d/ssh restart
• Do not close terminal!
• Test login

24. Firewall
• sudo apt-get install ufw
• sudo ufw allow 22022
• sudo ufw allow 80
• sudo ufw allow ...
• sudo ufw enable

25. Oh Crap!

26. Linode Typical Types
512
Apache 2048
PHP MySQL
1024
Apache 512
wotaskd Jenkins
apps SVN
512
Monitor

27. Install Java
• sudo echo "deb http://archive.canonical.com/ lucid partnern
deb-src http://archive.canonical.com/ lucid partner " >> /etc/apt/
sources.list
• apt-get update
• apt-get install sun-java6-jdk

28. Installing Software
• Ubuntu - apt-get
• Linode Library

29. Linode StackScripts
• Scripts to automate Linode setup
• Hooks for user input
• Extensive library
• Create your own
• API for external control

30. Install WO Frameworks
• Wait... Actually don’t.

31. Prepare for WO Apps
• Apache 2.2?
• Apache Adapter?

32. Build Apache Adaptor
• Curl Wonder source from webobjects.mdimension.com
• cd Wonder/Utilities/Adaptors/
• nano make.config and change ADAPTOR_OS
• remove srandomdev() call as per wiki
• make and install as per wiki

33. Prepare WO Directories
• mkdir -p /opt/Library/WebObjects/JavaApplications/
• mkdir -p /opt/Local/Library/WebObjects/Applications/
• mkdir -p /opt/Local/Library/Logs/

34. Generate WO Users
• sudo groupadd appserveradm
• sudo useradd -g appserveradm appserver

35. Install wotaskd
• Curl wotaskd.woa.tar.gz from webobjects.mdiminsion.com
• untar and mv into /opt/Library/WebObjects/JavaApplications/
• Fix permissions

36. Install JavaMonitor
• Curl JavaMonitor.woa.tar.gz from webobjects.mdiminsion.com
• untar and mv into /opt/Library/WebObjects/JavaApplications/
• Fix permissions

37. Ubuntu Upstart
• Replacement for rc.d scripts
• Similar in concept to launchd
• Can perform auto relaunch

38. Upstart Example

39. Upstart
• File /etc/init/webobjects.conf
• Started with:
• services webobjects start

40. WO App Installation
• Curl the app.woa from the build server
• Untar and mv to /opt/Local/Library/WebObjects/Applications/
• Curl the WSR app.woa from the build server
• Untar and mv to /srv/www/xxx.com/public_html/WebObjects/
• Fix permissions

41. Linode Performance Tuning
• Choose the correct size Linode for the job
• Tune config for the service
• Apache
• MySQL
• Linode Library as lots of tips

42. Linode Backup
• Linode offers a file system level backup service
• Enabled per Linode ($5 - $40/mo)
• 4 Snapshots (today, 1 weekly, 2 week, user triggered)
• DB export may be required for full coverage

43. MONTREAL 1/3 JULY 2011
Q&A