31 { "source_host" : "e7003378928a", "pathname" : "usrlocallibpython3.6site-packagesnamekorunners.py", "relativeCreated" : 386.46125793457031, "levelno" : 20, "msecs" : 118.99447441101074, "process" : 1, "args" : [ "orders_service" ], "name" : "nameko.runners", "filename" : "runners.py", "funcName" : "start", "module" : "runners", "lineno" : 64, "@timestamp" : "2018-02-02T18:42:09.119Z", "@version" : 1, "message" : "starting services: orders_service", "levelname" : "INFO", "stack_info" : null, "thread" : 140612517945416, "processName" : "MainProcess", "threadName" : "MainThread", "msg" : "starting services: %s", "created" : 1520275329.1189945 } システムから取得できる情報を 自動で付加するツールもある