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# Daemontools service management
#
# author Brice Figureau <brice-puppet@daysofwonder.com>
Puppet::Type.type(:service).provide :runit, :parent => :daemontools do
desc "Runit service management.
This provider manages daemons running supervised by Runit.
It tries to detect the service directory, with by order of preference:
* /service
* /var/service
* /etc/service
The daemon directory should be placed in a directory that can be
by default in:
* /etc/sv
or this can be overriden in the service resource parameters:
service {
\"myservice\":
provider => \"runit\", path => \"/path/to/daemons\";
}
This provider supports out of the box:
* start/stop
* enable/disable
* restart
* status"
commands :sv => "/usr/bin/sv"
class << self
# this is necessary to autodetect a valid resource
# default path, since there is no standard for such directory.
def defpath
unless defined?(@defpath) and @defpath
["/etc/sv", "/var/lib/service"].each do |path|
if FileTest.exist?(path)
@defpath = path
break
end
end
raise "Could not find the daemon directory (tested [/var/lib/service,/etc])" unless @defpath
end
@defpath
end
end
# find the service dir on this node
def servicedir
unless defined?(@servicedir) and @servicedir
["/service", "/etc/service","/var/service"].each do |path|
if FileTest.exist?(path)
@servicedir = path
break
end
end
raise "Could not find service directory" unless @servicedir
end
@servicedir
end
def restartcmd
[ command(:sv), "restart", self.service]
end
def status
begin
output = sv "status", self.daemon
return :running if output =~ /^run: /
rescue Puppet::ExecutionFailure => detail
unless detail.message =~ /(warning: |runsv not running$)/
raise Puppet::Error.new( "Could not get status for service %s: %s" % [ resource.ref, detail] )
end
end
return :stopped
end
# relay to the stopcmd
def stop
ucommand( :stop )
end
def stopcmd
[ command(:sv), "stop", self.service]
end
# disable by removing the symlink so that runit
# doesn't restart our service behind our back
# note that runit doesn't need to perform a stop
# before a disable
def disable
# unlink the daemon symlink to disable it
File.unlink(self.service) if FileTest.symlink?(self.service)
end
end
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