Christian Manivong
c8e472b4c6
Two drivers from one package, both in the hypervisor role: - vmware_esxi talks to one host directly: facts, vmnics and vmkernel NICs, CDP/LLDP neighbours, sensors, VMs, datastores and port groups. - vmware_vcenter talks to a vCenter: every VM of every host it manages, with the host as the VM's node, plus distributed port groups. It reports no interfaces of its own; the hosts' NICs belong to the hosts. Both implement the HypervisorDriver VM contract: get_vms, get_vm_config, start/stop/reboot/suspend_vm and the four snapshot methods, and emit raw device warnings (maintenance mode, disconnected host, config issues, host managed by a vCenter, free license making the API read-only). Every read is a PropertyCollector query for the explicit paths in paths.py, converted by to_plain() into dicts and lists; the parsers only ever see that. tools/harvest.py dumps exactly those paths to JSON and tools/sanitize.py scrubs the dump, so a real host can become a test fixture without code changes. A VM's vmid is its instance UUID, which survives vMotion and re-registration; a MoRef does not. Tested against govmomi's vcsim in ESXi and vCenter mode, including real power and snapshot tasks. Not yet tested against real hardware.
66 lines
2.4 KiB
Python
66 lines
2.4 KiB
Python
"""NAPALM ``get_environment`` from host quick stats and hardware sensors."""
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from __future__ import annotations
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from typing import Any
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_SENSORS = "runtime.healthSystemRuntime.systemHealthInfo.numericSensorInfo"
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_MB = 1024 * 1024
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def _reading(sensor: dict[str, Any]) -> float:
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return float(sensor.get("currentReading", 0)) * 10 ** int(sensor.get("unitModifier", 0))
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def _health(sensor: dict[str, Any]) -> str:
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return (sensor.get("healthState") or {}).get("key", "unknown")
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def _cpu_percent(host: dict[str, Any]) -> float:
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hardware = host.get("summary.hardware") or {}
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capacity = int(hardware.get("cpuMhz") or 0) * int(hardware.get("numCpuCores") or 0)
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used = (host.get("summary.quickStats") or {}).get("overallCpuUsage") or 0
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return round(used / capacity * 100, 2) if capacity else 0.0
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def _add_sensors(env: dict[str, Any], host: dict[str, Any], prefix: str) -> None:
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for sensor in host.get(_SENSORS) or []:
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name = f"{prefix}{sensor.get('name', '')}"
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kind = sensor.get("sensorType")
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health = _health(sensor)
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if kind == "temperature":
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env["temperature"][name] = {
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"temperature": _reading(sensor),
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"is_alert": health in ("yellow", "red"),
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"is_critical": health == "red",
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}
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elif kind == "fan":
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env["fans"][name] = {"status": health == "green"}
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elif kind == "power":
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env["power"][name] = {
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"status": health == "green",
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"capacity": -1.0,
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"output": _reading(sensor),
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}
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def environment(hosts: list[dict[str, Any]]) -> dict[str, Any]:
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"""One host: keyed like a single device. Several (vCenter): keyed by host."""
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env: dict[str, Any] = {
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"fans": {},
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"temperature": {},
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"power": {},
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"cpu": {},
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"memory": {"available_ram": 0, "used_ram": 0},
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}
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single = len(hosts) == 1
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for host in hosts:
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key = "0" if single else host.get("name", host["_moref"])
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env["cpu"][key] = {"%usage": _cpu_percent(host)}
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hardware = host.get("summary.hardware") or {}
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stats = host.get("summary.quickStats") or {}
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env["memory"]["available_ram"] += int(hardware.get("memorySize") or 0)
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env["memory"]["used_ram"] += int(stats.get("overallMemoryUsage") or 0) * _MB
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_add_sensors(env, host, "" if single else f"{key}/")
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return env
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