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aprsd/aprsd/cmds/healthcheck.py
2022-01-07 15:17:16 -05:00

81 lines
2.5 KiB
Python

#
# Used to fetch the stats url and determine if
# aprsd server is 'healthy'
#
#
# python included libs
import datetime
import json
import logging
import sys
import click
import requests
from rich.console import Console
import aprsd
from aprsd import cli_helper, utils
# local imports here
from aprsd.aprsd import cli
# setup the global logger
# logging.basicConfig(level=logging.DEBUG) # level=10
LOG = logging.getLogger("APRSD")
console = Console()
@cli.command()
@cli_helper.add_options(cli_helper.common_options)
@click.option(
"--url",
"health_url",
show_default=True,
default="http://localhost:8001/stats",
help="The aprsd url to call for checking health/stats",
)
@click.option(
"--timeout",
show_default=True,
default=3,
help="How long to wait for healtcheck url to come back",
)
@click.pass_context
@cli_helper.process_standard_options_no_config
def healthcheck(ctx, health_url, timeout):
"""Check the health of the running aprsd server."""
console.log(f"APRSD HealthCheck version: {aprsd.__version__}")
with console.status(f"APRSD HealthCheck version: {aprsd.__version__}") as status:
try:
status.update(f"Contacting APRSD on {health_url}")
url = health_url
response = requests.get(url, timeout=timeout)
response.raise_for_status()
except Exception as ex:
console.log(f"Failed to fetch healthcheck url '{url}' : '{ex}'")
sys.exit(-1)
else:
status.update("Contacted APRSD. Parsing results.")
stats = json.loads(response.text)
email_thread_last_update = stats["stats"]["email"]["thread_last_update"]
if email_thread_last_update != "never":
delta = utils.parse_delta_str(email_thread_last_update)
d = datetime.timedelta(**delta)
max_timeout = {"hours": 0.0, "minutes": 5, "seconds": 0}
max_delta = datetime.timedelta(**max_timeout)
if d > max_delta:
console.log(f"Email thread is very old! {d}")
sys.exit(-1)
aprsis_last_update = stats["stats"]["aprs-is"]["last_update"]
delta = utils.parse_delta_str(aprsis_last_update)
d = datetime.timedelta(**delta)
max_timeout = {"hours": 0.0, "minutes": 5, "seconds": 0}
max_delta = datetime.timedelta(**max_timeout)
if d > max_delta:
LOG.error(f"APRS-IS last update is very old! {d}")
sys.exit(-1)
sys.exit(0)