A stopped volume should not block execution

This only invokes `gluster volume status` if the volume is started. This
prevents a stopped volume from causing Puppet (or Facter) failures.

Closes #1.

lib/facter/gluster.rb

@@ -24,9 +24,7 @@
  end
  end
  output = Facter::Util::Resolution.exec("#{binary} peer status")
- if output =~ /^Number of Peers: (\d+)$/
- peer_count = $1.to_i
- end
+ peer_count = $1.to_i if output =~ /^Number of Peers: (\d+)$/
  if peer_count > 0 then
  peer_list = output.scan(/^Hostname: (.+)$/).flatten.join(',')
  # note the stderr redirection here
@@ -35,14 +33,17 @@
  if output != "No volumes present in cluster" then
  output.split.each do |vol|
  output = Facter::Util::Resolution.exec("#{binary} volume info #{vol}")
+ status = $1 if output.scan =~ /^Status: (.+)$/
  bricks = output.scan(/^Brick[^:]+: (.+)$/).flatten
  volume_bricks[vol] = bricks
  options = output.scan(/^(\w+\.[^:]+: .+)$/).flatten
  if options then
  volume_options[vol] = options
  end
- output = Facter::Util::Resolution.exec("#{binary} volume status #{vol}")
- volume_ports[vol] = output.scan(/^Brick [^\t]+\t+(\d+)/).flatten.uniq.sort
+ if status == "Started" then
+ output = Facter::Util::Resolution.exec("#{binary} volume status #{vol}")
+ volume_ports[vol] = output.scan(/^Brick [^\t]+\t+(\d+)/).flatten.uniq.sort
+ end
  end
  end
  end