[linx] Add linx server, role and playbook

group_vars/reverseproxy.yml

@@ -38,6 +38,7 @@ nginx:
     - {from: roundcube.crans.org, to: 172.16.10.107}
     - {from: hedgedoc.crans.org, to: "172.16.10.128:3000"}
     - {from: owncloud.crans.org, to: 172.16.10.136}
+    - {from: linx.crans.org, to: "172.16.10.119:8080"}
     # - {from: belenios.crans.org, to: 172.16.10.111}
     # - {from: mailman.crans.org, to: 10.231.136.180}