109 lines
3.9 KiB
Python
109 lines
3.9 KiB
Python
#!/usr/bin/env python3
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import subprocess
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import time
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import socket
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import os
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UPS_IP = "10.31.41.46"
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TIME_THRESHOLD = 6
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INTERVAL_LINE = 60
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INTERVAL_BATTERY = 5
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OID_ON_BATTERY_TIME = "1.3.6.1.4.1.318.1.1.1.2.2.3.0"
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OID_STATES = "1.3.6.1.4.1.318.1.1.1.11.1.1.0"
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OID_BATTERY_PERCENT = "1.3.6.1.4.1.318.1.1.1.2.2.1.0"
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def parse_time(time_str):
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if time_str == "" or time_str is None:
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return None
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try:
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time_parts = time_str.split(":")[-4:]
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days = int(time_parts[0])
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hours = int(time_parts[1])
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minutes = int(time_parts[2])
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seconds = float(time_parts[3])
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return (days * 24 * 60) + (hours * 60) + minutes + (int(seconds // 60))
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except Exception as e:
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print(f"Error parsing time: {e}")
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return None
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def send_email(recipient, subject, body, sender):
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email_message = f"Subject: {subject}\nFrom: {sender}\nTo: {recipient}\n\n{body}"
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process = os.popen('/usr/sbin/sendmail -t', 'w')
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process.write(email_message)
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process.close()
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def parse_states(states_str):
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states_str = states_str.strip('"')
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if states_str == "": return "Invalid input"
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if len(states_str) < 64: return "Invalid input"
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if states_str[1] == '0': return "on-line"
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if states_str[1] == '1': return "on-battery"
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return "Invalid input"
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def run_command(command):
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result = subprocess.run(f"{command}", shell=True,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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text=True, check=False)
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data = result.stdout.strip()
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if "No such file or directory" in data:
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print(f"Error: {data}", flush=True)
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return None
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return result.stdout.strip()
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def snmp_get(oid):
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result = run_command(f'/usr/bin/snmpget -v2c -O v -O q -c public {UPS_IP} {oid}')
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if result is None or result == "":
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return None
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if "Timeout" in result:
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print(f"UPS {UPS_IP} OID {oid} is unreachable, skipping...", flush=True)
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return None
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if "No Such Instance" in result:
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print(f"UPS {UPS_IP} OID {oid} not found, skipping...", flush=True)
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return None
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if "No Such Object" in result:
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print(f"UPS {UPS_IP} OID {oid} not found, skipping...", flush=True)
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return None
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if "No response" in result:
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print(f"UPS {UPS_IP} OID {oid} not response, skipping...", flush=True)
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return None
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return result
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def main():
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state = "on-line"
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while True:
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if state == "on-battery": time.sleep(INTERVAL_BATTERY)
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if state == "on-line": time.sleep(INTERVAL_LINE)
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result = snmp_get(OID_ON_BATTERY_TIME)
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if result is None: continue
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time_on_battery = parse_time(result)
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result = snmp_get(OID_STATES)
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if result is None: continue
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state = parse_states(result)
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result = snmp_get(OID_BATTERY_PERCENT)
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if result is None: continue
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battery_percent = int(result)
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print(f"Batterry {battery_percent}%, {state}, estimated time on battery: {time_on_battery} minutes", flush=True)
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shutdown_status = run_command('shutdown --show')
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if (state == "on-battery") and (time_on_battery > TIME_THRESHOLD) and ("No scheduled shutdown" in shutdown_status):
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print("UPS is failing, shutting down in 60 seconds...", flush=True)
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send_email(f"{socket.gethostname()}@vvzvlad.xyz", "UPS is failing, shutting down in 60 seconds...",
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f"Proxmox node '{socket.gethostname()}': UPS is failing, shutting down in 60 seconds...",
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f"{socket.gethostname()}@vvzvlad.xyz")
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run_command('shutdown -h 3 "Shutting down due to UPS failure"')
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if (state == "on-line") and ("Shutdown scheduled" in shutdown_status):
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print("UPS is back online, cancelling shutdown...", flush=True)
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run_command('shutdown -c')
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if __name__ == "__main__":
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print("Starting UPS monitoring...", flush=True)
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main()
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