While it could also be used in other contexts, this is intended to be used by the drbd-reactorpromoter
plugin when defining simple linear service dependency chains on a specific DRBD resource.
The parameterization of the ocf resource agents is done via environment definitions in systemd drop-in
configuration, which are generated by the drbd-reactorpromoter plugin.
The implementation uses ocf.ra.wrapper.sh to start the ocf resource agent, then keeps monitoring it every
monitor_interval seconds (default: 30s). You could override some settings (like the monitor_interval) for
"all" ocf.ra@.service instances with a drop-in for the template unit.