Generate keytab for kojira

Signed-off-by: Patrick Uiterwijk <puiterwijk@redhat.com>

playbooks/groups/koji-hub.yml

@@ -30,6 +30,9 @@
   - collectd/base
   - apache
   - fedmsg/base
+  - role: keytab/service
+    service: kojira
+    host: "koji.fedoraproject.org"
   - koji_hub
   - { role: nfs/server, when: env == "staging" }
   - { role: keepalived, when: env == "production" and inventory_hostname.startswith('koji') }