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mongo-logger/tailer.py
2021-06-30 14:41:07 +00:00

54 lines
1.8 KiB
Python

import argparse
import asyncio
import re
import os
import sys
from motor.motor_asyncio import AsyncIOMotorClient
from termcolor import colored
MONGO_URI = os.getenv("MONGO_URI")
if not MONGO_URI:
print("MONGO_URI not specified")
sys.exit(1)
db = AsyncIOMotorClient(MONGO_URI).get_default_database()
parser = argparse.ArgumentParser()
parser.add_argument('--include-container', action='append', default=[])
parser.add_argument('--exclude-container', action='append', default=[])
parser.add_argument('--exclude-host', action='append', default=[])
args = parser.parse_args()
async def main():
async with db.log.watch([{'$match': {'operationType': 'insert'}}]) as stream:
print("Connected")
async for event in stream:
doc = event["fullDocument"]
host = doc.get("host", "-")
if host in args.exclude_host:
continue
container_name = doc.get("container_name", "/-")[1:]
if args.include_container and container_name not in args.include_container:
continue
if container_name in args.exclude_container:
continue
msg = doc.get("message")
if msg:
container_name = "system:%s" % doc.get("ident")
else:
msg = doc.get("log")
# TODO: Do this mangling in fluentd.conf
m = re.match("time=\".*?\" level=[a-z]+ msg=\"(.*?)\"", msg)
if m:
msg, = m.groups()
m = re.match("\[\d+.*? \d+\] (.*?)\"", msg)
if m:
msg, = m.groups()
print(doc["time"], colored(doc.get("host", "-"), "blue"), "\t", "% 30s" % colored(container_name, "yellow"), msg)
loop = asyncio.get_event_loop()
loop.run_until_complete(main())