PE-40374 migrate to different OS (#567)

* add out message in migrate plan stating the old and new OS family and version when migrating between OS's

* -

* * Changing old/new primary hosts output to be more user-readable
* move old/new primary host check and output to just before backup running
* remove output stating the old PE configuration

Author: B00885424

plans/migrate.pp

@@ -9,7 +9,6 @@
 # @param upgrade_version
 #   Optional version to upgrade to after migration is complete
 #
-#
 plan peadm::migrate (
   Peadm::SingleTargetSpec $old_primary_host,
   Peadm::SingleTargetSpec $new_primary_host,
@@ -45,6 +44,11 @@
     getvar('cluster.params.compiler_hosts'),
   )
 
+  $old_primary_platform = run_task('peadm::precheck', $old_primary_host).first['platform']
+  $new_primary_platform = run_task('peadm::precheck', $new_primary_host).first['platform']
+  out::message("Old primary platform: ${old_primary_platform}")
+  out::message("New primary platform: ${new_primary_platform}")
+
   $backup_file = run_plan('peadm::backup', $old_primary_host, {
       backup_type => 'migration',
   })
@@ -61,8 +65,6 @@
   $old_primary_password = peadm::get_pe_conf($old_primary_target)['console_admin_password']
   $old_pe_conf = run_task('peadm::get_peadm_config', $old_primary_target).first.value
 
-  out::message("old_pe_conf:${old_pe_conf}.")
-
   run_plan('peadm::install', {
       primary_host                => $new_primary_host,
       console_password            => $old_primary_password,