Adding checks for setup from scratch

As discussed in voxpupuli#24 (comment) extra check added to handle creation of volumes from scratch on a Gluster pool.

manifests/volume.pp

@@ -102,13 +102,19 @@
  if $binary{
  # we need the Gluster binary to do anything!
 
+ if $::gluster_peer_list != undef and $::gluster_volume_list != undef {
+ $minimal_requirements = true
+ } else {
+ $minimal_requirements = false
+ }
+
  if $::gluster_volume_list != undef and member( split( $::gluster_volume_list, ',' ), $title ) {
  $already_exists = true
  } else {
  $already_exists = false
  }
 
- if $already_exists == false {
+ if $minimal_requirements and $already_exists == false {
  # this volume has not yet been created
 
  # before we can create it, we need to ensure that all the
@@ -167,7 +173,7 @@
  }
  }
 
- } else {
+ } elsif $already_exists {
  # this volume exists
 
  # our fact lists bricks comma-separated, but we need an array