Changed to only attempt loading rules and routes after the ufw is ins…

…talled

Signed-off-by: Evgeny Soynov <esoynov@kogito.network>

lib/puppet/provider/ufw_route/ufw_route.rb

@@ -23,6 +23,7 @@ def initialize
 
   def get(context)
     context.debug('Returning list of routes')
+    return [] unless ufw_installed?
 
     @instances = []
     route_list_lines.each do |line|
@@ -149,4 +150,8 @@ def delete(context, name)
     params = rule_to_ufw_params_nocomment(is)
     Puppet::Util::Execution.execute("/usr/sbin/ufw route delete #{params}", failonfail: true)
   end
+
+  def ufw_installed?
+    File.file?('/usr/sbin/ufw')
+  end
 end

lib/puppet/provider/ufw_rule/ufw_rule.rb

@@ -25,6 +25,7 @@ def initialize
 
   def get(context)
     context.debug('Returning list of rules')
+    return [] unless ufw_installed?
 
     @instances = []
     rule_list_lines.each do |line|
@@ -180,4 +181,8 @@ def delete(context, name)
     params = rule_to_ufw_params_nocomment(is)
     Puppet::Util::Execution.execute("/usr/sbin/ufw delete #{params}", failonfail: true)
   end
+
+  def ufw_installed?
+    File.file?('/usr/sbin/ufw')
+  end
 end