chef-solo

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• Chef-solo Find cookbooks http://community.opscode.com/cookbooks

  Bootstrapping files for creating a Ruby on Rails server on an Tested on Ubuntu 12.04 server, with Ruby on Rails 3.2.7 and Ruby 1.9.3-p125

** Requirements

Blank Ubuntu 12.04 server machine with SSH access

Make sure on your machine which you are running the chef commands from that you have ruby, chef & knife-solo installed

: gem install chef knife-solo

** Prepare server

Create a new node : cd nodes : cp ../node-templates/webserver.json <Server IP>.json

Edit <Server IP>.json file and change username and password to anything you like and remove or add cookbooks if you want.

NOTE: Your 'dbuser' should be the same as your 'linuxuser'.

Prepare the server, ie: bootstap & install chef. : knife prepare @<Server IP>

** Running

Optional: install ssh-copy-id for passwordless ssh setup to your server : ssh-copy-id @<Server IP>

Run chef-solo on server : knife cook @<Server IP>

NOTE: Sometimes I've had to re-run the prepare again for the cook to work properly.

*** After system is built

This part maybe handled by using passenger_apache2.

**** Server side

Edit /etc/apache2/sites-enabled/rails_project, and follow the example

You may have to restart apache2 on the server : sudo service apache2 restart

**** Dev box

Restarting apache2 from your DEV box. : cap passenger:restart

**** Passenger

Max pool size should be set to '2' for VPS's with 256MB RAM. Default is 6. This is set in the /etc/apache2/sites-enabled/rails_project.

**** Add your new server to your github.

ssh into your server and do : ssh-keygen -t rsa -C "[email protected]" : cat .ssh/id_rsa.pub

Testing with : git clone [email protected]:map7/venuebat.git

Copy the .ssh/id_rsa.pub file into your github profile.

**** Capistrano [[http://railscasts.com/episodes/133-capistrano-tasks/][Capistrano Railscast]]

The next step after your machine is setup is to setup capistrano for deployment.

Use capistrano to deploy your app.

: cap deploy:setup : cap deploy:cold

ssh into server and do the following : cd /srv//shared : mkdir config

Assuming you have a database.yml.example file you could do : mkdir /srv//shared/config : cp /srv//current/config/database.yml.example /srv//shared/config/database.yml

Now edit your database.yml file so that it has only the production database details in it.

You can now create and seed the database : cap deploy:cold : cap deploy:seed : cap deploy:restart

**** Troubleshooting

***** Gems not updating on server If you want to update a Gem make sure you explicitly state the version number in the Gemfile before deploying.

EG: gem 'gmaps4rails', '1.5.2'

gems are placed in the shared/bundle directory and will not show up with 'gem list' on the server.

***** Passenger: Unexpected end-of-file

If you are getting the following error

Passenger encountered the following error: The application spawner server exited unexpectedly: Unexpected end-of-file detected.

Upgrade passenger to 3.0.14 : sudo gem update passenger : passenger-install-apache2-module

** Mythtv server requirements

Setup your server using the mythbuntu 11.04 or higher distro.

During the install

• Select to download codecs etc
• Setup drives like so: | mount point | type | size | | / | ext4 | 20GB | | /home | ext4 | 30GB | | /var/lib/mythtv/overlays | ext4 | 10GB | | /var/lib/mythtv | xfs | * |
• Select all services
• Setup as a frontend & backend.
• Select your remote control

: ./deploy.sh @ mythtv.json

*** Notes

I typically put my video drives in /storage? (where ? is the number of the drive)

If you want to share a /storage? directory then look at /etc/samba/smb.conf ** Installing Gems

You must have a ruby installed in the system otherwise chef will install your gem into the embedded area (/opt/chef/embedded/bin/)

gem_package = Installs into the system area chef_gem = Installs into embedded area for use in chef scripts.