Capistrano is the rather excellent tool for automating Rails application deployment. But it can do a lot more than just uploading Rails applications to live webservers. It's scripts are basically Rake scripts and so have the full power of Ruby behind then so you can pretty much write code to do anything that you want.
I wanted a way to reload the configuration for my Apache2 web server running on my home Ubuntu server. I found a post on Mongrel and Capistrano 2.0 by John Ward which showed a very nifty way to create Capistrano tasks for variants of the same base command.
My adapted version for controlling Apache is:
I wanted a way to reload the configuration for my Apache2 web server running on my home Ubuntu server. I found a post on Mongrel and Capistrano 2.0 by John Ward which showed a very nifty way to create Capistrano tasks for variants of the same base command.My adapted version for controlling Apache is:
namespace :apache doAdd this code to your
[:stop, :start, :restart, :reload].each do |action|
desc "#{action.to_s.capitalize} Apache"
task action, :roles => :web do
invoke_command "/etc/init.d/apache2 #{action.to_s}", :via => run_method
end
end
end
config/deploy.rb. This will add four new tasks to Capistrano which you can use to restart or reload Apache:cap apache:stopTechnorati Tags: Capistrano, Apache, Ubuntu, Ruby, Rails, Rake, John Ward, Andrew Beacock
cap apache:start
cap apache:restart
cap apache:reload
Comments
Very elegant way to do :)
For example with apache and mysql:
# For each service...
{:apache => 'apache2', :mysql => 'mysql'}.each do |name, script|
namespace name do
# For each action...
[:stop, :start, :restart, :reload].each do |action|
desc "#{action.to_s.capitalize} #{name.to_s.capitalize}"
task action, :roles => :web do
run "/etc/init.d/#{script} #{action.to_s}"
end
end
end
end
So what you are saying is if we have a control script that lives within /etc/init.d (and therefore obeys the rules of stop/start/(restart?)) then we can simply list them at the top and get the rest of the rake task to auto-generate the tasks.
I like your thinking!
Very helpful indeed!! especially for those who encounter difficulty with regard to the services they offer.
But back to the topic, the Capistrano recipe looks like it's worth trying out.
THanks,
Angela