Allow to add nexus user to additional groups

This will allow to provide a license file to be used by
different instances or a single one without the need
to manage it directly in the nexus cookbook.

attributes/default.rb

@@ -15,6 +15,9 @@
 default['nexus3']['user'] = 'nexus'
 default['nexus3']['uid'] = nil
 default['nexus3']['gid'] = nil
+# Additional groups to add nexus user to, for example when sharing a license file between users.
+# Groups listed must already exist.
+default['nexus3']['additional_groups'] = []
 
 default['nexus3']['properties_variables']['application-port'] = '8081'
 default['nexus3']['properties_variables']['application-host'] = '0.0.0.0'

resources/default.rb

@@ -3,6 +3,7 @@
 property :nexus3_uid, [String, Integer, NilClass], default: lazy { node['nexus3']['uid'] }
 property :nexus3_group, [String, NilClass], default: lazy { node['nexus3']['group'] }
 property :nexus3_gid, [String, Integer, NilClass], default: lazy { node['nexus3']['gid'] }
+property :nexus3_additional_groups, [Array, NilClass], default: lazy { node['nexus3']['additional_groups'] }
 property :nexus3_password, String, sensitive: true, default: lazy { node['nexus3']['api']['password'] } # Admin password
 property :version, String, default: lazy { node['nexus3']['version'] }
 property :url, [String, NilClass], default: lazy { node['nexus3']['url'] }
@@ -34,6 +35,16 @@
     uid new_resource.nexus3_uid unless new_resource.nexus3_uid.nil?
   end
 
+  new_resource.nexus3_additional_groups.to_a.each do |gr|
+    group "add #{new_resource.nexus3_user} user to #{gr} group" do
+      group_name gr
+      action :modify
+      append true
+      members [new_resource.nexus3_user]
+      not_if { platform?('windows') }
+    end
+  end
+
   # Install Nexus3 software
   ark "nexus-#{new_resource.version}" do
     action :put

test/fixtures/cookbooks/nexus3_test/recipes/default.rb

@@ -1,5 +1,7 @@
 openjdk_pkg_install '8' unless platform_family?('windows')
 
+group 'nexusall'
+
 package 'curl'
 
 # Installation with default settings
@@ -16,6 +18,7 @@
     nexus3_group 'nexusbar'
     nexus3_uid 1234
     nexus3_gid 5678
+    nexus3_additional_groups ['nexusall']
     nexus3_home '/home/nexusbar'
     nexus3_password 'humdiddle'
     properties_variables(node['nexus3']['properties_variables'].merge('application-port': '8082'))

test/integration/default/inspec/default_spec.rb

@@ -69,6 +69,7 @@
     it { should exist }
     its('uid') { should eq 1234 }
     its('group') { should eq 'nexusbar' }
+    its('groups') { should include 'nexusall' }
     its('gid') { should eq 5678 }
   end