Reporting NAS drive free space after server startup via discord messages.

nas_free_discord.py

# automate reporting after homlab starts with below cronjob:
# @reboot sleep 60 && python3 <path_to_script>

import logging
import requests
import shutil
from datetime import datetime

target = '<mount_path>'
ts_format = '%Y.%m.%d %H:%M:%S'
logging.basicConfig(filename='<log_file_path>',
                    filemode='a',
                    format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s',
                    datefmt=ts_format,
                    level=logging.INFO)  # logging.DEBUG for verbosity
url = '<discord_channel_webhook_url>'


# KB:2**10, MB:2**20, GB:2**30 etc (1024=2**10)
def get_free_space():
    free = shutil.disk_usage(target).free
    return str(free // (2**20)) + 'MB'


def get_ts():
    now = datetime.now()
    return now.strftime(ts_format)


available = get_free_space()
data = {
    'content': f'{get_ts()} - Available space on device: {available}'
}

try:
    logging.info('request start')
    result = requests.post(url, json=data)
    result.raise_for_status()
except Exception as err:
    logging.error(f'request error: {err}')
else:
    logging.info(f'request success: {result.status_code}, value: {available}')