Files
napalm-proxmox/napalm_proxmox/system_mixin.py
T
Christian ManivongandClaude Sonnet 4.6 b1ba991e6d feat: set_hostname — update /etc/hostname, /etc/hosts, cert, Postfix
Implements set_hostname on ProxmoxSystemMixin:
1. Writes /etc/hostname (short name, base64-safe transfer)
2. Replaces old hostname in /etc/hosts via Python regex + base64
3. Updates /etc/mailname if present
4. Updates Postfix myhostname via postconf -e if installed
5. Applies hostname immediately at runtime via hostname(1)
6. Regenerates Proxmox node TLS certificate via pvecm updatecerts -f
   (falls back to pvenode cert create → pveproxy restart)

Accepts bare hostname or FQDN. A reboot is required for the Proxmox
node name to update in the web UI / cluster — the driver logs this.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-19 16:30:45 +02:00

788 lines
32 KiB
Python

# Copyright 2025 The NetOrk Project Authors. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""System-level NAPALM getters for Proxmox VE nodes (environment, NTP, SNMP, users, packages, services, updates, disk SMART)."""
from __future__ import annotations
import logging
import re
from typing import Any
from napalm_proxmox import utils
logger = logging.getLogger(__name__)
_JsonDict = dict[str, Any]
class ProxmoxSystemMixin:
"""Mixin providing system-level NAPALM methods."""
# ------------------------------------------------------------------ #
# get_environment
# ------------------------------------------------------------------ #
def get_environment(self) -> _JsonDict:
"""Return environment status (CPU, memory, temperature)."""
status = self._get_node_status()
env: _JsonDict = {
"fans": {},
"temperature": {},
"power": {},
"cpu": {},
"memory": {"available_ram": 0, "used_ram": 0},
}
# CPU
cpu_usage = status.get("cpu", 0.0)
env["cpu"]["0"] = {"%usage": round(float(cpu_usage) * 100, 2)}
# Memory (Proxmox reports in bytes)
mem = status.get("memory", {})
total = int(mem.get("total", 0) or 0)
used = int(mem.get("used", 0) or 0)
env["memory"]["available_ram"] = total
env["memory"]["used_ram"] = used
# Temperature (from node sensors if available)
try:
sensors = self._node_api().hardware.sensors.get() or []
except Exception as exc:
logger.debug("Failed to fetch hardware sensors: %s", exc)
sensors = []
for sensor in sensors:
name = sensor.get("name", "unknown")
value = sensor.get("value", None)
if value is not None:
try:
temp_c = float(value)
env["temperature"][name] = {
"temperature": temp_c,
"is_alert": temp_c >= 80.0,
"is_critical": temp_c >= 95.0,
}
except (TypeError, ValueError):
pass
return env
# ------------------------------------------------------------------ #
# get_ntp_servers / get_ntp_stats
# ------------------------------------------------------------------ #
def get_ntp_servers(self) -> dict[str, _JsonDict]:
"""Return configured NTP servers."""
ntp = self._get_node_ntp()
servers: dict[str, _JsonDict] = {}
# Proxmox reports a comma-separated or space-separated server list
raw = ntp.get("server", "") or ntp.get("servers", "")
for srv in re.split(r"[\s,]+", raw):
srv = srv.strip()
if srv:
servers[srv] = {}
return servers
def get_ntp_stats(self) -> list[_JsonDict]:
"""Return NTP synchronisation statistics from chronyc/ntpq output."""
raw = self._exec_ssh_command(
"chronyc -n tracking 2>/dev/null || ntpq -pn 2>/dev/null || true"
)
stats: list[_JsonDict] = []
for line in raw.splitlines():
line = line.strip()
# ntpq -pn format: *remote refid st t when poll reach delay offset jitter
m = re.match(
r"^([\*\+\-\s])([\d.]+)\s+([\d.]+)\s+(\d+)\s+\S+\s+(\S+)\s+(\d+)\s+(\d+)\s+([\d.]+)\s+([-\d.]+)\s+([\d.]+)",
line,
)
if m:
synced = m.group(1).strip() == "*"
stats.append(
{
"remote": m.group(2),
"referenceid": m.group(3),
"synchronized": synced,
"stratum": int(m.group(4)),
"type": "",
"when": m.group(5),
"hostpoll": int(m.group(6)),
"reachability": int(m.group(7)),
"delay": float(m.group(8)),
"offset": float(m.group(9)),
"jitter": float(m.group(10)),
}
)
return stats
# ------------------------------------------------------------------ #
# get_snmp_information
# ------------------------------------------------------------------ #
def get_snmp_information(self) -> _JsonDict:
"""Return SNMP information.
Proxmox does not expose SNMP configuration via the REST API.
We read /etc/snmp/snmpd.conf via exec if available.
"""
raw = self._exec_ssh_command(
"cat /etc/snmp/snmpd.conf 2>/dev/null || true"
)
communities: dict[str, _JsonDict] = {}
location = ""
contact = ""
for line in raw.splitlines():
line = line.strip()
if line.startswith("#") or not line:
continue
# rocommunity <community> [source]
m = re.match(r"^(ro|rw)community\s+(\S+)", line)
if m:
mode = "ro" if m.group(1) == "ro" else "rw"
community = m.group(2)
communities[community] = {"acl": "N/A", "mode": mode}
m_loc = re.match(r"^sysLocation\s+(.+)", line)
if m_loc:
location = m_loc.group(1).strip()
m_con = re.match(r"^sysContact\s+(.+)", line)
if m_con:
contact = m_con.group(1).strip()
return {
"chassis_id": self._node_name,
"community": communities,
"contact": contact,
"location": location,
}
# ------------------------------------------------------------------ #
# get_users
# ------------------------------------------------------------------ #
def get_users(self) -> dict[str, _JsonDict]:
"""Return users configured on the Proxmox node.
Reads from both the Proxmox access/users API and local /etc/passwd.
"""
result: dict[str, _JsonDict] = {}
try:
pve_users = self._api.access.users.get() or [] # type: ignore[union-attr]
except Exception as exc:
logger.debug("Failed to fetch Proxmox users: %s", exc)
pve_users = []
for user in pve_users:
uid = user.get("userid", "")
if not uid:
continue
# Proxmox roles: Administrator -> 15, otherwise 1
groups = user.get("groups", "") or ""
level = 1
try:
roles = self._api.access.users(uid).get() or {} # type: ignore[union-attr]
if "Administrator" in str(roles):
level = 15
except Exception as exc:
logger.debug("Failed to fetch roles for user %s: %s", uid, exc)
result[uid] = {
"level": level,
"password": "",
"sshkeys": [],
}
# Merge local OS users from /etc/passwd
raw = self._exec_ssh_command("getent passwd 2>/dev/null || cat /etc/passwd")
for line in raw.splitlines():
parts = line.split(":")
if len(parts) < 7:
continue
uname, _, uid_str, *_ = parts
try:
uid_int = int(uid_str)
except ValueError:
continue
if uname not in result and uid_int < 1000 or uid_int == 0:
result[uname] = {
"level": 15 if uid_int == 0 else 0,
"password": "",
"sshkeys": [],
}
return result
# ------------------------------------------------------------------ #
# Packages (Debian APT)
# ------------------------------------------------------------------ #
def get_packages(self) -> list[_JsonDict]:
"""Return installed Debian packages with available-update info.
Installed list comes from ``dpkg-query`` via SSH (the Proxmox API
``/apt/installed`` endpoint is not implemented on PVE 8.x).
Available updates come from the Proxmox API ``/apt/update``.
"""
# Available updates from Proxmox API (keyed by package name)
upgradable: dict[str, str] = {}
try:
for upd in self._api.nodes(self._node_name).apt.update.get():
pkg = upd.get("Package", "")
if pkg:
upgradable[pkg] = upd.get("Version", "")
except Exception as exc:
logger.debug("Failed to fetch available APT updates: %s", exc)
# Installed packages via SSH dpkg-query
raw = self._exec_ssh_command(
"dpkg-query -W -f='${Package}\\t${Version}\\t${db:Status-Status}\\t${Installed-Size}\\n'"
" 2>/dev/null"
)
result: list[_JsonDict] = []
for line in raw.splitlines():
parts = line.strip().split("\t")
if len(parts) < 2:
continue
name = parts[0]
version = parts[1] if len(parts) > 1 else ""
status = parts[2] if len(parts) > 2 else "installed"
size_kb = parts[3] if len(parts) > 3 else "0"
if not name or status != "installed":
continue
size_bytes = int(size_kb) * 1024 if size_kb.isdigit() else 0
result.append({
"name": name,
"version": version,
"installed": True,
"description": "",
"size": size_bytes,
"source": "pve",
"upgrade_version": upgradable.get(name, ""),
})
return result
# ------------------------------------------------------------------ #
# Device warnings
# ------------------------------------------------------------------ #
def get_device_warnings(self) -> list[_JsonDict]:
"""Return warnings for the Proxmox node.
Currently detects:
- lldpd not installed (LLDP neighbor discovery unavailable)
- Available package updates (via Proxmox APT API)
- Missing / invalid subscription
"""
warnings: list[_JsonDict] = []
# 0. LLDP daemon
try:
lldpd_path = self._exec_ssh_command("command -v lldpd 2>/dev/null").strip()
if not lldpd_path:
warnings.append({
"code": "lldpd_not_installed",
"severity": "warning",
"action": "install_lldpd",
})
except Exception as exc:
logger.debug("Failed to check for lldpd: %s", exc)
# 1. Available package updates
try:
updates = self.get_available_updates()
if updates:
warnings.append({
"code": "updates_available",
"severity": "warning",
"title": (
f"{len(updates)} package update"
f"{'s' if len(updates) != 1 else ''} available"
),
"message": None,
"action": None,
"meta": {
"count": len(updates),
"packages": [u["name"] for u in updates],
},
})
except Exception as exc:
logger.debug("Failed to check available updates: %s", exc)
# 2. Subscription status
try:
sub = self._get_node_subscription()
status = sub.get("status", "")
if status in ("NotFound", "Invalid", "Expired"):
warnings.append({
"code": "no_subscription",
"severity": "warning",
"action": None,
"meta": {"status": status},
})
except Exception as exc:
logger.debug("Failed to check subscription status: %s", exc)
return warnings
# ------------------------------------------------------------------ #
# Services (systemd)
# ------------------------------------------------------------------ #
def get_services(self) -> list[_JsonDict]:
"""Return systemd services with running and enabled state.
Uses two ``systemctl`` invocations combined in a single SSH command:
- ``list-unit-files`` for the static enabled/disabled state
- ``list-units`` for the live running state
"""
raw = self._exec_ssh_command(
"{ systemctl list-unit-files --type=service --no-pager --no-legend --full 2>/dev/null;"
" echo '---UNITS---';"
" systemctl list-units --type=service --all --no-pager --no-legend --full 2>/dev/null;"
" } || true"
)
# Parse enabled state from list-unit-files
enabled_map: dict[str, bool] = {}
section = "files"
for line in raw.splitlines():
if line.strip() == "---UNITS---":
section = "units"
continue
parts = line.strip().split(None, 1)
if len(parts) < 1:
continue
unit = parts[0].lstrip("\u25cf").strip()
if not unit.endswith(".service"):
continue
name = unit[: -len(".service")]
if section == "files":
state = parts[1].strip() if len(parts) > 1 else ""
enabled_map[name] = state in ("enabled", "enabled-runtime", "static")
# Parse running state from list-units
running_map: dict[str, bool] = {}
section = "files"
for line in raw.splitlines():
if line.strip() == "---UNITS---":
section = "units"
continue
if section != "units":
continue
parts = line.strip().lstrip("\u25cf").strip().split(None, 4)
if len(parts) < 4:
continue
unit = parts[0]
if not unit.endswith(".service"):
continue
name = unit[: -len(".service")]
sub_state = parts[3]
running_map[name] = sub_state == "running"
all_names = sorted(set(enabled_map) | set(running_map))
return [
{
"name": name,
"running": running_map.get(name, False),
"enabled": enabled_map.get(name, False),
"pid": 0,
}
for name in all_names
]
def manage_service(self, name: str, action: str) -> _JsonDict:
"""Start / stop / restart / enable / disable a systemd service."""
if not re.match(r'^[a-zA-Z0-9_\-\.@]+$', name):
raise ValueError(f"Invalid service name: {name!r}")
if action not in ('start', 'stop', 'restart', 'enable', 'disable'):
raise ValueError(f"Invalid action: {action!r}")
output = self._exec_ssh_command(f"systemctl {action} {name}.service 2>&1 || true")
return {"success": True, "output": output}
# ------------------------------------------------------------------ #
# Available updates
# ------------------------------------------------------------------ #
def get_available_updates(self) -> list[_JsonDict]:
"""Return list of upgradable packages from the Proxmox APT API."""
updates: list[_JsonDict] = []
try:
for upd in self._api.nodes(self._node_name).apt.update.get():
pkg = upd.get("Package", "")
if not pkg:
continue
updates.append({
"name": pkg,
"current_version": upd.get("OldVersion", ""),
"new_version": upd.get("Version", ""),
})
except Exception as exc:
logger.debug("Failed to fetch available updates: %s", exc)
return sorted(updates, key=lambda u: u["name"])
def apply_updates(self, packages: list[str]) -> _JsonDict:
"""Upgrade the given packages via ``apt-get install`` over SSH."""
for pkg in packages:
if not re.match(r'^[a-zA-Z0-9_\-\+\.]+$', pkg):
raise ValueError(f"Invalid package name: {pkg!r}")
pkg_args = " ".join(packages)
output = self._exec_ssh_command(
f"DEBIAN_FRONTEND=noninteractive apt-get install --only-upgrade -y {pkg_args} 2>&1 || true"
)
return {"success": True, "output": output}
# ------------------------------------------------------------------ #
# SNMP / Health
# ------------------------------------------------------------------ #
def get_snmp_config(self):
"""Return SNMP agent config if snmpd is installed and running on the node.
Uses _exec_ssh_command (Proxmox API exec or SSH) to inspect the node.
Returns a SNMPConfigDict or None.
"""
try:
from napalm_device_types.models import SNMPConfigDict
except ImportError:
return None
running = (
self._exec_ssh_command("systemctl is-active snmpd 2>/dev/null || true").strip()
== "active"
)
if not running:
return None
community = "public"
port = 161
try:
conf = self._exec_ssh_command(
"grep -E '^[[:space:]]*(ro|rw)?community' /etc/snmp/snmpd.conf 2>/dev/null | head -5"
)
for line in conf.splitlines():
parts = line.split()
if not parts:
continue
kw = parts[0].lower()
if kw in ("rocommunity", "rwcommunity") and len(parts) >= 2:
community = parts[1]
break
elif kw == "com2sec" and len(parts) >= 4:
community = parts[3]
break
except Exception as exc:
logger.debug("Failed to parse snmpd.conf: %s", exc)
return SNMPConfigDict(running=True, community=community, port=port, version="2c")
def run_device_action(self, action: str) -> dict:
"""Execute a named administrative action on the Proxmox node."""
if action == "fix_snmp":
return self._action_fix_snmp()
if action == "install_lldpd":
return self._action_install_lldpd()
raise NotImplementedError(f"Unknown action: {action!r}")
def _action_install_lldpd(self) -> dict:
"""Install, enable and start lldpd on the Proxmox node.
Proxmox runs Debian/Linux underneath, so this is a plain apt install
followed by enabling the systemd service. lldpd's defaults (listen on
all interfaces) are sufficient to discover the directly-connected
switch via the management bridge (e.g. vmbr0).
"""
lines: list[str] = []
install_out = self._exec_ssh_command(
"DEBIAN_FRONTEND=noninteractive apt-get install -y lldpd 2>&1 | tail -5"
)
lines.append(f"[install] {install_out.strip()[-200:]}")
enable_out = self._exec_ssh_command(
"systemctl enable --now lldpd 2>&1 || service lldpd start 2>&1 || true"
)
lines.append(f"[service] {enable_out.strip()[-200:]}")
verify = self._exec_ssh_command("command -v lldpd 2>/dev/null").strip()
success = bool(verify)
if success:
lines.append("[ok] lldpd installed. Neighbors will appear after a short warm-up period.")
else:
lines.append("[warn] lldpd does not appear to be installed after the attempt.")
return {"success": success, "output": "\n".join(lines)}
def _action_fix_snmp(self) -> dict:
"""Install, configure and start snmpd on the Proxmox node.
Proxmox runs Debian/Linux underneath. _exec_ssh_command runs as root
(either via Proxmox API execute endpoint or SSH with root credentials),
so no sudo is needed.
"""
import base64 as _b64
lines: list[str] = []
# 1. Install snmpd and snmp client tools
install_out = self._exec_ssh_command(
"DEBIAN_FRONTEND=noninteractive apt-get install -y snmpd snmp 2>&1 | tail -5"
)
lines.append(f"[install] {install_out.strip()[-200:]}")
# 2. Detect the IP this connection comes from (for firewall rule)
netork_ip = ""
try:
raw = self._exec_ssh_command(
"ss -tnp 2>/dev/null | awk '/sshd/{print $5}' | head -1 | cut -d: -f1"
).strip()
if raw and raw not in ("", "0.0.0.0", "::", "127.0.0.1"):
netork_ip = raw
except Exception as exc:
logger.debug("Failed to detect network origin IP: %s", exc)
# 3. Write snmpd.conf via /tmp (no permission issues)
conf_str = (
"agentAddress udp:161\n"
"rocommunity public\n"
"sysLocation Managed by netOrk\n"
"sysContact netork@localhost\n"
)
conf_b64 = _b64.b64encode(conf_str.encode()).decode()
self._exec_ssh_command(f"echo {conf_b64} | base64 -d > /tmp/netork_snmpd.conf")
self._exec_ssh_command(
"mv /tmp/netork_snmpd.conf /etc/snmp/snmpd.conf && "
"chown root:root /etc/snmp/snmpd.conf && chmod 644 /etc/snmp/snmpd.conf"
)
verify = self._exec_ssh_command("cat /etc/snmp/snmpd.conf 2>/dev/null").strip()
if "agentAddress" in verify and "rocommunity" in verify:
lines.append("[config] Wrote /etc/snmp/snmpd.conf - agentAddress udp:161, rocommunity public.")
else:
lines.append(f"[warn] snmpd.conf write may have failed: {verify[:100]}")
# 4. Open firewall if ufw is present
if netork_ip:
try:
ufw = self._exec_ssh_command("command -v ufw 2>/dev/null").strip()
if ufw:
parts = netork_ip.rsplit(".", 1)
subnet = f"{parts[0]}.0/24" if len(parts) == 2 else netork_ip
fw_out = self._exec_ssh_command(
f"ufw allow from {subnet} to any port 161 proto udp 2>&1"
)
lines.append(f"[firewall/ufw] {fw_out.strip()[:200]}")
except Exception as exc:
lines.append(f"[firewall] skipped - {exc}")
# 5. Stop and restart snmpd cleanly (no DBus needed for stop+start)
self._exec_ssh_command(
"service snmpd stop 2>/dev/null; pkill -9 snmpd 2>/dev/null; true"
)
import time as _time
_time.sleep(1)
start_out = self._exec_ssh_command(
"service snmpd start 2>&1 || systemctl start snmpd 2>&1 || true"
)
lines.append(f"[service] {start_out.strip()[-200:]}")
# 6. Verify via local probe
_time.sleep(2)
probe_out = self._exec_ssh_command(
"snmpget -v2c -cpublic -t2 -r0 -Ov 127.0.0.1 1.3.6.1.2.1.1.1.0 2>&1 || true"
).strip()
_snmp_types = ("STRING:", "INTEGER:", "OID:", "Timeticks:", "Hex-STRING:", "IpAddress:")
success = any(t in probe_out for t in _snmp_types)
if success:
lines.append("[ok] SNMP probe successful - community 'public' is working.")
else:
lines.append(f"[warn] SNMP probe failed - output: {probe_out[:200]}")
return {"success": success, "output": "\n".join(lines)}
# ------------------------------------------------------------------ #
# set_hostname
# ------------------------------------------------------------------ #
def set_hostname(self, new_hostname: str) -> None:
"""Set the system hostname on the Proxmox node.
Performs all steps required for a clean rename on a Debian/Proxmox host:
1. ``/etc/hostname`` — short hostname only.
2. ``/etc/hosts`` — old hostname replaced by new (short or FQDN).
3. ``/etc/mailname`` — FQDN, if the file exists.
4. Postfix ``myhostname`` — updated via ``postconf -e`` if Postfix is
installed.
5. Runtime hostname — applied immediately via ``hostname(1)`` so SSH
and the Proxmox API see the new name without a reboot.
6. Proxmox node TLS certificate — regenerated via
``pvecm updatecerts -f``.
**Important**: the Proxmox *node name* (shown in the web UI and stored
in ``/etc/pve/nodes/<name>/``) only changes after a full reboot.
Until then the web UI still shows the old node name, but the OS-level
hostname and the SSL certificate already reflect the new value.
Accepts a bare hostname (``pve-see``) or an FQDN
(``pve-see.see.local``).
"""
import base64 as _b64
if "." in new_hostname:
short_hostname, domain = new_hostname.split(".", 1)
fqdn = new_hostname
else:
short_hostname = new_hostname
domain = None
fqdn = new_hostname
# Derive old short hostname for substitution in /etc/hosts
old_short = self._exec_ssh_command(
"cat /etc/hostname 2>/dev/null || hostname -s 2>/dev/null"
).strip().split(".")[0]
# ── 1. /etc/hostname ─────────────────────────────────────────────
hostname_b64 = _b64.b64encode(f"{short_hostname}\n".encode()).decode()
self._exec_ssh_command(f"echo {hostname_b64} | base64 -d > /etc/hostname")
# ── 2. /etc/hosts ────────────────────────────────────────────────
# Read the file, substitute in Python (safe for all characters),
# write back via base64 to avoid shell-escaping issues.
if old_short and old_short != short_hostname:
hosts_raw = self._exec_ssh_command("cat /etc/hosts 2>/dev/null")
# Replace whole-word occurrences of the old short hostname.
# Both "hostname" and "hostname.domain" forms are covered because
# the new value is the full fqdn when a domain was given.
import re as _re
new_replace = fqdn if domain else short_hostname
hosts_new = _re.sub(
r"\b" + _re.escape(old_short) + r"\b",
new_replace,
hosts_raw,
)
hosts_b64 = _b64.b64encode(hosts_new.encode()).decode()
self._exec_ssh_command(
f"echo {hosts_b64} | base64 -d > /tmp/_netork_hosts"
f" && mv /tmp/_netork_hosts /etc/hosts"
f" && chmod 644 /etc/hosts"
)
# ── 3. /etc/mailname ─────────────────────────────────────────────
mailname_b64 = _b64.b64encode(f"{fqdn}\n".encode()).decode()
self._exec_ssh_command(
f"[ -f /etc/mailname ]"
f" && echo {mailname_b64} | base64 -d > /etc/mailname"
f" || true"
)
# ── 4. Postfix myhostname ─────────────────────────────────────────
self._exec_ssh_command(
f"command -v postconf >/dev/null 2>&1"
f" && postconf -e 'myhostname = {fqdn}'"
f" || true"
)
# ── 5. Apply hostname at runtime ─────────────────────────────────
self._exec_ssh_command(f"hostname '{short_hostname}'")
# ── 6. Regenerate Proxmox node TLS certificate ───────────────────
# pvecm updatecerts -f is the canonical command for both standalone
# and clustered nodes (PVE 6+). Fall back to restarting pveproxy,
# which regenerates the certificate automatically when it detects a
# hostname change.
cert_out = self._exec_ssh_command(
"pvecm updatecerts -f 2>&1"
" || pvenode cert create --overwrite 1 2>&1"
" || { systemctl restart pveproxy 2>&1; echo 'restarted pveproxy'; }"
" || true"
)
logger.info("Proxmox cert regeneration: %s", cert_out[:200])
logger.info(
"Proxmox set_hostname: %s → %s (fqdn: %s). "
"Reboot required for node name to update in web UI / cluster.",
old_short, short_hostname, fqdn,
)
def get_disk_smart(self) -> dict:
"""Return SMART health data for all disks on this Proxmox node.
Combines the disk list (model, size, wearout) with per-disk SMART
data (health, temperature, percentage used).
Returns a dict keyed by device path, e.g. {"/dev/nvme0n1": {...}}.
"""
import re as _re
result: dict = {}
try:
disks = self._node_api().disks.list.get() or []
except Exception as exc:
logger.debug("Failed to list disks: %s", exc)
return result
for disk in disks:
dev = disk.get("devpath") or disk.get("dev")
if not dev:
continue
entry: dict = {
"model": disk.get("model", ""),
"serial": disk.get("serial", ""),
"type": disk.get("type", ""),
"size": disk.get("size", 0),
"health": disk.get("health", "unknown").lower(),
"wearout": disk.get("wearout"), # NVMe wear indicator 0-100
"temperature": None,
"percentage_used": None,
"available_spare": None,
"reallocated_sectors": None,
"power_on_hours": None,
}
try:
smart = self._node_api().disks.smart.get(disk=dev) or {}
# health from SMART endpoint may be more accurate
if smart.get("health"):
entry["health"] = smart["health"].lower()
text = smart.get("text", "")
# Parse temperature
m = _re.search(r"Temperature[^:]*:\s*(\d+)\s*Celsius", text)
if m:
entry["temperature"] = int(m.group(1))
# NVMe-specific
m = _re.search(r"Percentage Used:\s*(\d+)%", text)
if m:
entry["percentage_used"] = int(m.group(1))
m = _re.search(r"Available Spare:\s*(\d+)%", text)
if m:
entry["available_spare"] = int(m.group(1))
m = _re.search(r"Power On Hours:\s*([\d,]+)", text)
if m:
entry["power_on_hours"] = int(m.group(1).replace(",", ""))
# HDD-specific SMART attributes
for attr in smart.get("attributes", []):
name = attr.get("name", "").lower()
raw = attr.get("raw", "")
try:
raw_int = int(str(raw).split()[0])
except (ValueError, TypeError):
raw_int = None
if "temperature" in name and raw_int is not None:
entry["temperature"] = raw_int
elif "reallocated" in name and "sector" in name and raw_int is not None:
entry["reallocated_sectors"] = raw_int
elif "power_on" in name and raw_int is not None:
entry["power_on_hours"] = raw_int
except Exception as exc:
logger.debug("Failed to fetch SMART data for %s: %s", dev, exc)
result[dev] = entry
return result