run rsyncd as rsyncd user instead of nobody

roles/rsync/server/tasks/main.yml

@@ -1,4 +1,18 @@
 ---
+- name: create rsyncd group
+  group:
+    name: rsyncd
+    system: true
+
+- name: create rsyncd user
+  user:
+    name: rsyncd
+    comment: Service RSyncd
+    group: rsyncd
+    home: /var/empty
+    shell: /sbin/nologin
+    system: true
+
 - name: create rsyncd config
   template:
     dest: /etc/rsyncd.conf

roles/rsync/server/templates/rsyncd.conf.j2

@@ -1,3 +1,6 @@
+uid = rsyncd
+gid = rsyncd
+
 [test]
 comment = test module
 path = /srv/mirrors/openbsd/