kerberos-kdc: quote some integers to avoid string/int confusion

Change-Id: Ia7ed570c1a10feafcb4824dca10282b8866f5265

playbooks/roles/kerberos-kdc/tasks/primary.yaml

@@ -71,14 +71,14 @@
   template:
     src: 'run-kprop.sh.j2'
     dest: '/usr/local/bin/run-kprop.sh'
-    mode: 0755
+    mode: '0755'
     owner: root
     group: root
 
 - name: kprop cron to push db to replicas
   cron:
     name: kprop
-    minute: 15
+    minute: '15'
     job: '/usr/local/bin/run-kprop.sh >/dev/null 2>&1'
 
 - name: start krb5-admin-server

playbooks/roles/kerberos-kdc/tasks/replica.yaml

@@ -31,7 +31,7 @@
   template:
     src: 'kpropd.acl.j2'
     dest: '/etc/krb5kdc/kpropd.acl'
-    mode: 0644
+    mode: '0644'
     owner: root
     group: root
 
@@ -39,7 +39,7 @@
   copy:
     src: krb5-kpropd.service
     dest: /etc/systemd/system/krb5-kpropd.service
-    mode: 0644
+    mode: '0644'
     owner: root
     group: root
   register: _kpropd_service_installed