As packetbeat was the first beat, there are still quite a few references in the libbeat library. The most obvious one is that the fallback elasticsearch index is called packetbeat. So for example for topbeat, the index packetbeat has to be used. I suggest the following:
- Rename the fall back index to beat
- Remove general references from libbeat to packetbeat
In addition I would suggest to add the index to the default config file of topbeat.