Initial import: monitoring, power-management, maintenance, web scripts
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#!/usr/bin/env python3
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"""Collecte les métriques PVE (RAM, swap, load, disque, état VMs/CTs) et les
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ajoute à un fichier CSV mensuel. Conçu pour être appelé toutes les 15 min
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via cron (no_agent=True)."""
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import csv, os, subprocess, json, sys
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from datetime import datetime
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OUTPUT_DIR = os.path.expanduser("~/.hermes/cron/output/pve-monitor")
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os.makedirs(OUTPUT_DIR, exist_ok=True)
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# Fichier CSV mensuel (ex: metrics-2026-07.csv)
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now = datetime.now()
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MONTH_CSV = os.path.join(OUTPUT_DIR, f"metrics-{now:%Y-%m}.csv")
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# Champs du CSV (même format que l'ancien système)
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FIELDS = [
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"timestamp", "epoch",
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"mem_total_mb", "mem_used_mb", "mem_avail_mb", "mem_pct",
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"swap_total_mb", "swap_used_mb", "swap_pct",
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"load_1", "load_5", "load_15",
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"disk_total_gb", "disk_used_gb", "disk_avail_gb", "disk_pct",
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"arc_size_mb",
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]
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def ssh_cmd(host, cmd):
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"""Exécute une commande SSH et retourne stdout."""
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r = subprocess.run(
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["ssh", "-o", "ConnectTimeout=5", "-o", "StrictHostKeyChecking=no",
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f"root@{host}", cmd],
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capture_output=True, text=True, timeout=15
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)
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if r.returncode != 0:
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raise RuntimeError(f"SSH error on {host}: {r.stderr.strip()}")
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return r.stdout.strip()
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def collect():
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row = {}
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row["timestamp"] = now.strftime("%Y-%m-%d %H:%M:%S")
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row["epoch"] = str(int(now.timestamp()))
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try:
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# RAM / Swap
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out = ssh_cmd("192.168.0.20", r"free -m | awk '/^Mem:/{print $2,$3,$7} /^Swap:/{print $2,$3}'")
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lines = out.split("\n")
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mem_total, mem_used, mem_avail = lines[0].split()
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swap_total, swap_used = lines[1].split() if len(lines) > 1 else ("0", "0")
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row["mem_total_mb"] = mem_total
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row["mem_used_mb"] = mem_used
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row["mem_avail_mb"] = mem_avail
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row["mem_pct"] = f"{float(mem_used) / float(mem_total) * 100:.1f}" if float(mem_total) > 0 else "0"
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row["swap_total_mb"] = swap_total
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row["swap_used_mb"] = swap_used
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row["swap_pct"] = f"{float(swap_used) / float(swap_total) * 100:.1f}" if float(swap_total) > 0 else "0"
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# Load average
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load = ssh_cmd("192.168.0.20", "cat /proc/loadavg | awk '{print $1,$2,$3}'")
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l1, l5, l15 = load.split()
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row["load_1"] = l1
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row["load_5"] = l5
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row["load_15"] = l15
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# Disque /
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disk = ssh_cmd("192.168.0.20", r"df -BG / | awk 'NR==2{print $2,$3,$4,$5}'")
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parts = disk.replace("G", "").replace("%", "").split()
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row["disk_total_gb"] = parts[0]
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row["disk_used_gb"] = parts[1]
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row["disk_avail_gb"] = parts[2]
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row["disk_pct"] = parts[3]
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# ARC ZFS
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arc = ssh_cmd("192.168.0.20", r"cat /proc/spl/kstat/zfs/arcstats 2>/dev/null | grep -E '^size ' | awk '{print $3}' || echo 0")
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row["arc_size_mb"] = f"{int(arc) // (1024*1024)}" if arc.isdigit() else "0"
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# VMs
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vm_out = ssh_cmd("192.168.0.20", "qm list 2>/dev/null | awk 'NR>1{print $1,$3}'")
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for line in vm_out.split("\n"):
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if not line.strip():
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continue
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parts = line.split()
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vid = parts[0]
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vstatus = parts[1] if len(parts) > 1 else "unknown"
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# Récupérer la RAM allouée
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mem = ssh_cmd("192.168.0.20", f"qm config {vid} 2>/dev/null | grep -i '^memory:' | awk '{{print $2}}' || echo 0")
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row[f"vm_{vid}_mem_gb"] = f"{int(mem) // 1024}" if mem.isdigit() else "0"
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row[f"vm_{vid}_status"] = vstatus
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if f"vm_{vid}_mem_gb" not in FIELDS:
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FIELDS.append(f"vm_{vid}_mem_gb")
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if f"vm_{vid}_status" not in FIELDS:
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FIELDS.append(f"vm_{vid}_status")
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# CTs
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ct_out = ssh_cmd("192.168.0.20", "pct list 2>/dev/null | awk 'NR>1{print $1,$2}'")
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for line in ct_out.split("\n"):
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if not line.strip():
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continue
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parts = line.split()
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cid = parts[0]
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cstatus = parts[1] if len(parts) > 1 else "unknown"
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mem = ssh_cmd("192.168.0.20", f"pct config {cid} 2>/dev/null | grep -i '^memory:' | awk '{{print $2}}' || echo 0")
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row[f"ct_{cid}_mem_gb"] = f"{int(mem) // 1024}" if mem.isdigit() else "0"
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row[f"ct_{cid}_status"] = cstatus
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if f"ct_{cid}_mem_gb" not in FIELDS:
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FIELDS.append(f"ct_{cid}_mem_gb")
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if f"ct_{cid}_status" not in FIELDS:
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FIELDS.append(f"ct_{cid}_status")
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except Exception as e:
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print(f"ERREUR collecte: {e}", file=sys.stderr)
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# Écrire quand même une ligne avec timestamp pour marquer l'échec
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for f in FIELDS:
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row.setdefault(f, "ERROR")
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# Écrire dans le CSV mensuel
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write_header = not os.path.isfile(MONTH_CSV)
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with open(MONTH_CSV, "a", newline="") as f:
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writer = csv.DictWriter(f, fieldnames=FIELDS)
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if write_header:
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writer.writeheader()
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writer.writerow(row)
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print(f"OK {now:%H:%M} — {os.path.basename(MONTH_CSV)} ({len(row)} champs)")
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if __name__ == "__main__":
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collect()
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