new fact to check if dhcp is used;

from https://github.com/gds-operations/puppet-resolvconf/blob/master/lib/facter/dhcp_enabled.rb

1 files changed, 22 insertions, 0 deletions

diff --git a/puppet/modules/site_config/lib/facter/dhcp_enabled.rb b/puppet/modules/site_config/lib/facter/dhcp_enabled.rb
new file mode 100644
index 00000000..33220da3
--- /dev/null
+++ b/puppet/modules/site_config/lib/facter/dhcp_enabled.rb
@@ -0,0 +1,22 @@
+require 'facter'
+def dhcp_enabled?(ifs, recurse=true)
+  dhcp = false
+  included_ifs = []
+  if FileTest.exists?(ifs)
+    File.open(ifs) do |file|
+      dhcp = file.enum_for(:each_line).any? do |line|
+        if recurse && line =~ /^\s*source\s+([^\s]+)/
+          included_ifs += Dir.glob($1)
+        end
+        line =~ /inet\s+dhcp/
+      end
+    end
+  end
+  dhcp || included_ifs.any? { |ifs| dhcp_enabled?(ifs, false) }
+end
+Facter.add(:dhcp_enabled) do
+  confine :osfamily => 'Debian'
+  setcode do
+    dhcp_enabled?('/etc/network/interfaces')
+  end
+end