Robot Army
Robot Army is deploy scripting which offers remote execution of Ruby in addition to the usual shell scripting offered by other deploy packages.
If you want to test this, be sure that the robot-army gem is installed on both the client and server machines. You should get an error if you try to execute it against a server with it installed.
Example
class AppServer < RobotArmy::TaskMaster
host 'app1.prod.example.com'
desc "time", "Get the time on the server (delta will be slightly off depending on SSH delay)"
def time
rtime = remote{ Time.now }
ltime = Time.now
say "The time on #{host} is #{rtime}, " +
"#{(rtime-ltime).abs} seconds #{rtime < ltime ? 'behind' : 'ahead of'} localhost"
end
desc "deployed_revision", "Gets the deployed revision"
def deployed_revision
say "Checking deployed revision on #{host}"
say "Deployed revision: #{remote{ File.read("/opt/app/current/REVISION") }}"
end
end
Known Issues
- Code executed in
remotehas no access to instance variables or globals - Probably doesn't work with Windows