$ ag -S instance_count
modules/cassandra/templates/cassandra.yaml-2.2.erb
323:                                                        || @instance_count == 1 \

modules/cassandra/templates/cassandra.yaml-3.x.erb
409:                                                        || @instance_count == 1 \

modules/cassandra/templates/cassandra.yaml-2.1.erb
278:                                                        || @instance_count == 1 \

modules/cassandra/manifests/instance.pp
72:        $instance_count         = 1
88:        $instance_count         = size($instances)

modules/thumbor/manifests/init.pp
9:# [*instance_count*]
37:    $instance_count = $::processorcount,
108:    $ports = prefix(range($listen_port + 1, $listen_port + $instance_count), '')