pptail

pptail is pretty print tail with fluentd format log.

like this format:

Apr 09 15:57:50 localhost 33ad0cd34e88[947]: 1970-01-01 00:33:39.000000347 +0000 some/image:latest.service_image_1.91880377002d.json: {"level":"INFO", "message":"test"}

or:

2019-04-02T08:03:47+09:00       some/image:latest.service_image.3cba43465250  {"level":"INFO", "message":"test"}

Usage

$ journalctl -xef | pptail
$ tail -f /path/to/loogfile | pptail

if log format is td-agent file output plugin, use -fluent option

Example

syslog format

➜ echo 'Apr 09 15:57:50 localhost 33ad0cd34e88[947]: 1970-01-01 00:33:39.000000347 +0000 some/image:latest.service_image_1.91880377002d.json: {"level":"INFO", "message":"test"}' | ./pptail        
main.message{
  Date:    "Apr 09 15:57:50",
  Image:   "some/image:latest.service_image_1.91880377002d",
  Payload: map[string]interface {}{
    "level":   "INFO",
    "message": "test",
  },
}

fluentd format

➜ echo '2019-04-02T08:03:47+09:00       some/image:latest.service_image.3cba43465250  {"level":"INFO", "message":"test"}' | ./pptail -fluent
main.message{
  Date:    "2019-04-02T08:03:47+09:00",
  Image:   "some/image:latest.service_image.3cba43465250",
  Payload: map[string]interface {}{
    "level":   "INFO",
    "message": "test",
  },
}

Install

go get -u github.com/nekottyo/pptail