live: Disable unnecessary resources

lib/facter/running_live.rb

+Facter.add('running_live') do
+  confine :kernel => 'Linux'
+  setcode do
+    Facter.value(:mountpoints)['/']['device'] == '/dev/mapper/live-rw'
+  end
+end

manifests/base/containers.pp

 class nest::base::containers {
-  unless $facts['is_container'] {
+  unless $facts['is_container'] or $facts['running_live'] {
     zfs { 'containers':
       name       => "${facts['rpool']}/containers",
       mountpoint => '/var/lib/containers',

manifests/base/puppet.pp

@@ -57,7 +57,7 @@ class nest::base::puppet {
       content => "---\nfqdn: '${trusted['certname']}.nest'\n",
     }
 
-    if $facts['build'] {
+    if $facts['build'] or $facts['running_live'] {
       $puppet_runmode = 'unmanaged'
     } else {
       $puppet_runmode = 'systemd.timer'

manifests/base/zfs.pp

@@ -30,7 +30,7 @@ class nest::base::zfs {
     ;
   }
 
-  unless $facts['is_container'] {
+  unless $facts['is_container'] or $facts['running_live'] {
     exec { 'zgenhostid':
       command => 'zgenhostid `hostid`',
       creates => '/etc/hostid',
@@ -119,7 +119,7 @@ class nest::base::zfs {
 
   ::nest::lib::systemd_reload { 'zfs': }
 
-  unless $facts['is_container'] {
+  unless $facts['is_container'] or $facts['running_live'] {
     exec { 'generate-zpool-cache':
       command => "/sbin/zpool set cachefile= ${trusted['certname']}",
       creates => '/etc/zfs/zpool.cache',