We get this in the filebeat log:
2019-06-25T18:20:50.014Z INFO log/input.go:148 Configured paths: [/var/data/kubeletlogs/f4bf8da5-9775-11e9-8dcd-dac7c637fa8b/filebeat/*.log]
2019-06-25T18:20:50.014Z INFO input/input.go:114 Starting input of type: docker; ID: 3753679483445256937
2019-06-25T18:20:50.015Z INFO log/harvester.go:254 Harvester started for file: /var/data/kubeletlogs/f4bf8da5-9775-11e9-8dcd-dac7c637fa8b/filebeat/0.log
..
..
2019-06-25T18:30:50.016Z INFO kubernetes/watcher.go:263 kubernetes: Unexpected EOF while watching API
2019-06-25T18:30:50.016Z INFO kubernetes/watcher.go:242 kubernetes: Watching API for resource events
2019-06-25T18:30:50.113Z ERROR [autodiscover] cfgfile/list.go:96 Error creating runner from config: Can only start an input when all related states are finished: {Id:921155-64512 Finished:false Fileinfo:0xc0001021a0 Source:/var/data/kubeletlogs/f4bf8da5-9775-11e9-8dcd-dac7c637fa8b/filebeat/0.log Offset:32903 Timestamp:2019-06-25 18:30:30.620916281 +0000 UTC m=+580.955716168 TTL:-1ns Type:docker Meta:map FileStateOS:921155-64512}
2019-06-25T18:30:50.113Z INFO input/input.go:149 input ticker stopped
2019-06-25T18:30:50.113Z INFO input/input.go:167 Stopping Input: 3753679483445256937
2019-06-25T18:30:50.113Z INFO log/harvester.go:275 Reader was closed: /var/data/kubeletlogs/f4bf8da5-9775-11e9-8dcd-dac7c637fa8b/filebeat/0.log. Closing.