feat(proxmox): pvesh-basierter exec-Input statt inputs.proxmox (kein Token/ACL noetig)
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#!/usr/bin/env bash
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# proxmox-ve.sh — VM- und Container-Metriken direkt vom PVE-Host.
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#
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# Läuft als root auf dem PVE-Knoten und nutzt `pvesh` (lokale API mit vollen
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# Rechten). Damit entfällt der API-Token komplett — kein Sys.Audit, keine ACL.
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#
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# Ausgabe im Prometheus-Format (data_format = "prometheus" in der Telegraf-Conf):
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# proxmox_vm_cpu_usage{vmid="1001",name="tunnel",type="qemu",status="running"} 0.42
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#
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# Aufruf durch Telegraf (inputs.exec) oder manuell zum Testen.
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set -eu
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command -v pvesh >/dev/null 2>&1 || { echo "# pvesh nicht gefunden — kein PVE-Host" >&2; exit 0; }
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TMP="$(mktemp)"; trap 'rm -f "$TMP"' EXIT
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pvesh get /cluster/resources --output-format json > "$TMP" 2>/dev/null || true
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[ -s "$TMP" ] || exit 0
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python3 - "$TMP" <<'PY'
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import json, sys, re
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def esc(s):
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return str(s).replace('\\', '\\\\').replace('"', '\\"').replace('\n', ' ')
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try:
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data = json.load(open(sys.argv[1]))
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except Exception as e:
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print(f"# JSON-Fehler: {e}", file=sys.stderr); sys.exit(0)
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rows = data.get("data", data) if isinstance(data, dict) else data
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if not isinstance(rows, list):
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sys.exit(0)
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def emit(name, labels, value):
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if value is None: return
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lab = ",".join(f'{k}="{esc(v)}"' for k, v in labels.items() if v is not None)
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print(f"{name}{{{lab}}} {value}")
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for r in rows:
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typ = r.get("type")
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if typ not in ("qemu", "lxc"): # node/storage überspringen
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continue
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if r.get("template"): # Templates nicht als Gast zählen
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continue
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if str(r.get("vmid", "")) == "": # nur Gäste mit vmid
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continue
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L = {"vmid": r.get("vmid"), "name": r.get("name"), "node": r.get("node"),
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"type": typ, "status": r.get("status")}
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# cpu ist ein Anteil 0..1 der zugewiesenen Kerne
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cpu = r.get("cpu")
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if cpu is not None:
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emit("proxmox_vm_cpu_usage", L, round(float(cpu) * 100, 2))
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emit("proxmox_vm_cpu_cores", L, r.get("maxcpu"))
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emit("proxmox_vm_mem_bytes", L, r.get("mem"))
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emit("proxmox_vm_mem_max_bytes", L, r.get("maxmem"))
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emit("proxmox_vm_disk_bytes", L, r.get("disk"))
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emit("proxmox_vm_disk_max_bytes", L, r.get("maxdisk"))
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emit("proxmox_vm_net_in_bytes", L, r.get("netin"))
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emit("proxmox_vm_net_out_bytes", L, r.get("netout"))
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emit("proxmox_vm_uptime_seconds", L, r.get("uptime"))
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emit("proxmox_vm_running", L, 1 if r.get("status") == "running" else 0)
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PY
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