add maven settings file for jenkins user

This commit is a workaround for jenkins issue
https://issues.jenkins-ci.org/browse/JENKINS-13637

This issue was uncovered when attempting to build the jenkins
gearman-plugin using maven3.

Change-Id: I5fdb20756f4ebca45b8e6eb2f114d561e1cca944
Reviewed-on: https://review.openstack.org/23022
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Reviewed-by: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins

manifests/jenkinsuser.pp

@@ -150,4 +150,22 @@ class jenkins::jenkinsuser(
     mode    => '0755',
     require => File['/home/jenkins'],
   }
+
+  file { '/home/jenkins/.m2':
+    ensure  => directory,
+    owner   => 'jenkins',
+    group   => 'jenkins',
+    mode    => '0755',
+    require => File['/home/jenkins'],
+  }
+
+  file { '/home/jenkins/.m2/settings.xml':
+    ensure  => present,
+    owner   => 'jenkins',
+    group   => 'jenkins',
+    mode    => '0644',
+    require => File['/home/jenkins/.m2'],
+    source  => 'puppet:///modules/jenkins/settings.xml',
+  }
+
 }