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skynet-webportal/setup-scripts/log-checker.py

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#!/usr/bin/env python3
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import discord, sys, traceback, io, os, asyncio
from bot_utils import setup, send_msg
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from datetime import datetime, timedelta
from subprocess import Popen, PIPE
"""
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log-checker checks the docker logs for siad.
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Arguments:
1. path to a .env file (default is none so env variables can already be
preset)
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2. docker container name name (default: "sia")
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3. number of hours to look back in log (default: 1 hour)
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"""
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# The default check interval in hours.
DEFAULT_CHECK_INTERVAL = 1
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bot_token = setup()
client = discord.Client()
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async def exit_after(delay):
await asyncio.sleep(delay)
exit(0)
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@client.event
async def on_ready():
await run_checks()
asyncio.create_task(exit_after(30))
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await client.close()
async def run_checks():
print("Running Skynet portal log checks")
try:
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await check_docker_logs()
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except: # catch all exceptions
trace = traceback.format_exc()
await send_msg(client, "```\n{}\n```".format(trace), force_notify=False)
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# check_docker_logs checks the docker logs by filtering on the docker image name
async def check_docker_logs():
print("\nChecking docker logs...")
# Get the container name as an argument or use "sia" as default.
container_name = "sia"
if len(sys.argv) > 2:
container_name = sys.argv[2]
# Get the container id for siad.
stream = os.popen('docker ps -q --filter name=^{}$'.format(container_name))
image_id = stream.read().strip()
# Get the number of hours to look back in the logs or use 1 as default.
check_hours = DEFAULT_CHECK_INTERVAL
if len(sys.argv) > 3:
check_hours = int(sys.argv[3])
now = datetime.now()
time = now - timedelta(hours=check_hours)
time_string = "{}h".format(check_hours)
# Read the logs.
proc = Popen(["docker", "logs", "--since", time_string, image_id], stdin=PIPE, stdout=PIPE, stderr=PIPE, text=True)
std_out, std_err = proc.communicate()
if len(std_err) > 0:
await send_msg(client, "Error reading docker logs output: {}".format(std_err), force_notify=True)
return
# If there are any critical errors. upload the whole log file.
if "Critical" in std_out or "panic" in std_out:
upload_name = "{}-{}-{}-{}-{}:{}:{}.log".format(container_name, time.year, time.month, time.day, time.hour, time.minute, time.second)
await send_msg(client, "Critical error found in log!", file=discord.File(io.BytesIO(std_out.encode()), filename=upload_name), force_notify=True)
return
# No critical errors, return a heartbeat type message
pretty_before = time.strftime("%I:%M%p")
pretty_now = now.strftime("%I:%M%p")
await send_msg(client, "No critical warnings in log from `{}` to `{}`".format(pretty_before, pretty_now))
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client.run(bot_token)