Change SSH key file generation to use user primary group by default

Author: bmhughes

CHANGELOG.md

@@ -1,5 +1,9 @@
 # CHANGELOG
 
+## 0.2.0 (2020-09-18)
+
+- Change SSH key file generation to use user primary group by default
+
 ## 0.1.0 (2020-07-10)
 
 - Initial release

libraries/general.rb

@@ -4,6 +4,8 @@
 #
 # Copyright:: Ben Hughes <bmhughes@bmhughes.co.uk>, All Rights Reserved.
 
+require 'etc'
+
 module UserSsh
   module Cookbook
     module GeneralHelpers
@@ -22,6 +24,19 @@ def user_ssh_file
         end
       end
 
+      def user_primary_group(user)
+        raise_error(type: ArgumentError) unless user.is_a?(String) || user.is_a?(Integer)
+
+        user_passwd = case user
+                      when String
+                        Etc.getpwnam(user)
+                      when Integer
+                        Etc.getpwuid(user)
+                      end
+
+        Etc.getgrgid(user_passwd.gid).name
+      end
+
       def comment_default
         return comment unless nil_or_empty?(comment)
         return name unless nil_or_empty?(name)

metadata.rb

@@ -3,8 +3,8 @@
 maintainer_email 'bmhughes@bmhughes.co.uk'
 license 'Apache-2.0'
 description 'Configures user SSH keys and options'
-version '0.1.0'
-chef_version '>= 14.0'
+version '0.2.0'
+chef_version '>= 16.0'
 
 issues_url 'https://github.com/bmhughes/user_ssh/issues'
 source_url 'https://github.com/bmhughes/user_ssh'

resources/_user_ssh.rb

@@ -27,7 +27,7 @@
           description: 'Owner of the generated file'
 
 property :group, [Integer, String],
-          default: lazy { user },
+          default: lazy { user_primary_group(user) },
           description: 'Group of the generated file'
 
 property :mode, String,