This change makes the following processes dump loaded options when
the processes start.
- octavia-driver-agent
- octavia-health-manager
- octavia-house-keeping
The actual options used by services are useful for debugging.
The loaded options are already logged by api and worker(*1), so this
ensures all daemons provide the consistent capability.
(*1)
octavia-worker depends on the cotyledon library, which internally
calls the (same) oslo.config functionality to dump options.
Change-Id: I79331dff469c6c81dd5afe04a950cdfd16abc3c1
ff1356a6d0