This updates the TLS secret templates to include the backend
service in the dict supplied to the manifest template, as it is
required for the TLS secret to render correctly.
This also removes the readiness probe from the nagios container in
the deployment for the nagios chart, as it wasn't functioning as
intended due to the port not being available for the probe
Change-Id: Iabcfd40c74938e0497d08ffeeebc98ab722fa660
c26a1b53f6