disk health report
This commit is contained in:
Richard
626
disk-health-report.py
Executable file
626
disk-health-report.py
Executable file
@@ -0,0 +1,626 @@
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#!/usr/bin/env python3
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"""Disk-health / node-removal-safety report for a Gallium cluster.
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The question this answers: **is it safe to remove a node** (permanently, or
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temporarily for maintenance)? A node is unsafe to remove when some volume's
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last healthy copy of its data lives only on that node -- removing it would take
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that data offline (permanently, or for the duration of the maintenance).
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Data model (all read live via `kubectl`):
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* KubeVirt VirtualMachines / VirtualMachineInstances -- the VMs and whether
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they're running, and which node each runs on.
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* The PVCs each VM references (directly, via DataVolume, or hot-plugged).
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* Longhorn Volumes + Replicas -- for every PVC's underlying volume, where its
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replicas live (which node) and whether each replica is healthy.
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* Pods -- to attribute PVCs that aren't owned by a VM to a non-VM workload
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vs. nothing at all.
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The report has three parts:
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1. A per-node removal-safety summary (the headline -- SAFE / UNSAFE).
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2. Per-VM detail: the VM, its running state, and for each of its PVCs a
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table of (replica, node, health).
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3. PVCs not attached to any VM, split into "attached to a non-VM pod" and
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"completely detached".
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Self-contained: standard library only; the sole dependency is a `kubectl`
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binary that can reach the cluster.
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"""
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from __future__ import annotations
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import argparse
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import json
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import subprocess
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import sys
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from collections import defaultdict
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from dataclasses import dataclass, field
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LONGHORN_NS = "longhorn-system"
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LONGHORN_CSI_DRIVER = "driver.longhorn.io"
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# --------------------------------------------------------------------------- #
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# kubectl plumbing
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# --------------------------------------------------------------------------- #
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class Kubectl:
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"""Thin wrapper that shells out to kubectl and parses JSON."""
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def __init__(self, binary: str, kubeconfig: str | None, context: str | None):
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self.base = [binary]
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if kubeconfig:
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self.base += ["--kubeconfig", kubeconfig]
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if context:
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self.base += ["--context", context]
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def get(self, resource: str, namespace: str | None = None) -> list[dict]:
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"""`kubectl get <resource> -o json` -> list of items.
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Returns [] (with a warning) when the resource type isn't present -- e.g.
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a cluster without KubeVirt or Longhorn installed -- rather than aborting
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the whole report.
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"""
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cmd = list(self.base) + ["get", resource, "-o", "json"]
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cmd += ["-n", namespace] if namespace else ["-A"]
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proc = subprocess.run(cmd, capture_output=True, text=True)
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if proc.returncode != 0:
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err = proc.stderr.strip()
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low = err.lower()
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if "the server doesn't have a resource type" in low or "could not find" in low:
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warn(f"resource {resource!r} not found on the cluster; skipping ({err})")
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return []
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die(f"kubectl get {resource} failed: {err}")
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try:
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return json.loads(proc.stdout).get("items", [])
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except json.JSONDecodeError as exc:
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die(f"could not parse kubectl output for {resource}: {exc}")
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return []
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# --------------------------------------------------------------------------- #
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# colour / output helpers
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# --------------------------------------------------------------------------- #
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class C:
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"""ANSI colour codes; blanked out when colour is disabled."""
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RESET = BOLD = DIM = RED = GREEN = YELLOW = BLUE = CYAN = ""
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@classmethod
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def enable(cls):
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cls.RESET = "\033[0m"
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cls.BOLD = "\033[1m"
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cls.DIM = "\033[2m"
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cls.RED = "\033[31m"
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cls.GREEN = "\033[32m"
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cls.YELLOW = "\033[33m"
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cls.BLUE = "\033[34m"
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cls.CYAN = "\033[36m"
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def warn(msg: str):
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print(f"{C.YELLOW}warning:{C.RESET} {msg}", file=sys.stderr)
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def die(msg: str):
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print(f"{C.RED}error:{C.RESET} {msg}", file=sys.stderr)
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sys.exit(1)
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def render_table(headers: list[str], rows: list[list[str]], indent: str = " ") -> str:
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"""Render a simple fixed-width table. Colour codes are ignored for width."""
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import re
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ansi = re.compile(r"\033\[[0-9;]*m")
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def vlen(s: str) -> int:
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return len(ansi.sub("", s))
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widths = [vlen(h) for h in headers]
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for row in rows:
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for i, cell in enumerate(row):
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widths[i] = max(widths[i], vlen(cell))
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def fmt(row: list[str]) -> str:
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cells = []
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for i, cell in enumerate(row):
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cells.append(cell + " " * (widths[i] - vlen(cell)))
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return indent + " ".join(cells).rstrip()
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sep = indent + " ".join("-" * w for w in widths)
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out = [fmt([f"{C.BOLD}{h}{C.RESET}" for h in headers]), sep]
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out += [fmt(r) for r in rows]
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return "\n".join(out)
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# --------------------------------------------------------------------------- #
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# domain types
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# --------------------------------------------------------------------------- #
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HEALTHY = "healthy"
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@dataclass
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class Replica:
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name: str
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node: str
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health: str # display: healthy | stopped | rebuilding | failed | error | unknown
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has_data: bool # holds a usable copy of the data (healthyAt set, not failed)
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@dataclass
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class Volume:
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"""A Longhorn volume backing one PVC (or a non-Longhorn PVC's stand-in)."""
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pvc_ns: str
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pvc_name: str
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lh_name: str | None # Longhorn volume name (== bound PV name)
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storage_class: str
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robustness: str # healthy | degraded | faulted | unknown | -
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state: str # attached | detached | -
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desired_replicas: int | None
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replicas: list[Replica] = field(default_factory=list)
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note: str = "" # e.g. non-Longhorn, unbound, missing
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@property
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def data_nodes(self) -> set[str]:
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"""Nodes that hold a usable copy of this volume's data.
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Uses data validity (healthyAt && !failedAt), NOT engine-running state:
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a cleanly-detached volume (stopped VM) still has good copies on its
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replica nodes, so losing one of those nodes still loses data.
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"""
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return {r.node for r in self.replicas if r.has_data and r.node}
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@property
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def all_nodes(self) -> set[str]:
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return {r.node for r in self.replicas if r.node}
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@dataclass
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class VM:
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ns: str
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name: str
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status: str # Running | Stopped | ...
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node: str | None # node the VMI runs on
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pvcs: list[tuple[str, str]] # (ns, name) referenced by this VM
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@property
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def running(self) -> bool:
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return self.status == "Running"
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# --------------------------------------------------------------------------- #
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# building the model
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# --------------------------------------------------------------------------- #
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def classify_replica(rep: dict) -> tuple[str, bool]:
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"""Return (display-health, has_data) for a Longhorn Replica CR.
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has_data is the data-safety signal: the replica holds a usable copy iff it
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has been healthy (`healthyAt`) and hasn't failed (`failedAt`) -- true even
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when the engine is stopped because the volume is detached.
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"""
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spec = rep.get("spec", {})
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status = rep.get("status", {})
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failed = bool(spec.get("failedAt"))
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healthy_at = bool(spec.get("healthyAt"))
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cur = status.get("currentState", "")
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has_data = healthy_at and not failed
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if failed:
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disp = "failed"
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elif cur == "running":
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disp = HEALTHY if healthy_at else "rebuilding"
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elif healthy_at:
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disp = "stopped" # good copy, engine down (volume detached)
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elif cur in ("stopped", "error"):
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disp = cur
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else:
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disp = cur or "unknown"
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return disp, has_data
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def vm_referenced_pvcs(vm_spec_volumes: list[dict], ns: str) -> list[tuple[str, str]]:
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"""PVC (ns, name) pairs a set of KubeVirt `volumes[]` entries reference."""
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out: list[tuple[str, str]] = []
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for v in vm_spec_volumes or []:
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pvc = v.get("persistentVolumeClaim")
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if pvc and pvc.get("claimName"):
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out.append((ns, pvc["claimName"]))
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continue
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# A DataVolume materialises a PVC with the same name in the same ns.
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dv = v.get("dataVolume")
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if dv and dv.get("name"):
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out.append((ns, dv["name"]))
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return out
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def is_virt_launcher(pod: dict) -> bool:
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labels = pod.get("metadata", {}).get("labels", {}) or {}
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if labels.get("kubevirt.io") == "virt-launcher":
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return True
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for ref in pod.get("metadata", {}).get("ownerReferences", []) or []:
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if ref.get("kind") == "VirtualMachineInstance":
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return True
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return False
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def virt_launcher_vm_name(pod: dict) -> str:
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"""The VM/VMI name a virt-launcher pod belongs to (VMI name == VM name)."""
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for ref in pod.get("metadata", {}).get("ownerReferences", []) or []:
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if ref.get("kind") == "VirtualMachineInstance" and ref.get("name"):
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return ref["name"]
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return (pod.get("metadata", {}).get("labels", {}) or {}).get("vm.kubevirt.io/name", "")
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def build_volume(pvc_ns: str, pvc_name: str, pvc_index, pv_index,
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lh_vol_index, replicas_by_vol) -> Volume:
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pvc = pvc_index.get((pvc_ns, pvc_name))
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if pvc is None:
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return Volume(pvc_ns, pvc_name, None, "-", "-", "-", None,
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note="PVC not found")
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sc = pvc.get("spec", {}).get("storageClassName", "") or "-"
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pv_name = pvc.get("spec", {}).get("volumeName") or ""
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phase = pvc.get("status", {}).get("phase", "")
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if not pv_name:
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return Volume(pvc_ns, pvc_name, None, sc, "-", "-", None,
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note=f"unbound PVC (phase={phase})")
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pv = pv_index.get(pv_name)
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driver = ""
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if pv:
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driver = pv.get("spec", {}).get("csi", {}).get("driver", "")
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if pv and driver and driver != LONGHORN_CSI_DRIVER:
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# Non-Longhorn PV: its data lives wherever the PV binds (often one node).
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node = _pv_pinned_node(pv)
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note = f"non-Longhorn ({driver})"
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vol = Volume(pvc_ns, pvc_name, pv_name, sc, "-", "-", None, note=note)
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if node:
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vol.replicas.append(Replica(pv_name, node, HEALTHY, has_data=True))
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return vol
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# Longhorn: the volume CR name equals the bound PV name.
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lh = lh_vol_index.get(pv_name)
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if lh is None:
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return Volume(pvc_ns, pvc_name, pv_name, sc, "-", "-", None,
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note="no Longhorn volume CR")
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robustness = lh.get("status", {}).get("robustness", "unknown") or "unknown"
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state = lh.get("status", {}).get("state", "unknown") or "unknown"
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desired = lh.get("spec", {}).get("numberOfReplicas")
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vol = Volume(pvc_ns, pvc_name, pv_name, sc, robustness, state, desired)
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for rep in replicas_by_vol.get(pv_name, []):
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# An empty nodeID means Longhorn couldn't schedule this replica (e.g. a
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# 3rd replica on a 2-node cluster). Keep it "" so it never counts as a
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# node that holds data, and render it as "(unscheduled)".
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node = rep.get("spec", {}).get("nodeID", "") or ""
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disp, has_data = classify_replica(rep)
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vol.replicas.append(Replica(
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name=rep.get("metadata", {}).get("name", "?"),
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node=node,
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health=disp,
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has_data=has_data,
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))
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vol.replicas.sort(key=lambda r: (r.node, r.name))
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return vol
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def _pv_pinned_node(pv: dict) -> str | None:
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"""Best-effort node a non-Longhorn PV is pinned to (nodeAffinity)."""
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terms = (pv.get("spec", {}).get("nodeAffinity", {})
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.get("required", {}).get("nodeSelectorTerms", []))
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for term in terms:
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for expr in term.get("matchExpressions", []):
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if expr.get("key") == "kubernetes.io/hostname" and expr.get("values"):
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return expr["values"][0]
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return None
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# --------------------------------------------------------------------------- #
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# health formatting
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# --------------------------------------------------------------------------- #
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def colour_health(health: str) -> str:
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good = {HEALTHY, "attached"}
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warnish = {"rebuilding", "degraded", "stopped", "detached"}
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bad = {"failed", "faulted", "error", "unknown"}
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if health in good:
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return f"{C.GREEN}{health}{C.RESET}"
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if health in warnish:
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return f"{C.YELLOW}{health}{C.RESET}"
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if health in bad:
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return f"{C.RED}{health}{C.RESET}"
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return health
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def colour_status(status: str) -> str:
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if status == "Running":
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return f"{C.GREEN}{status}{C.RESET}"
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if status in ("Stopped", "Paused"):
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return f"{C.YELLOW}{status}{C.RESET}"
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return f"{C.CYAN}{status}{C.RESET}"
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# --------------------------------------------------------------------------- #
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# main report
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# --------------------------------------------------------------------------- #
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def main():
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ap = argparse.ArgumentParser(
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description="Report Longhorn disk health and assess node-removal safety.")
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ap.add_argument("--kubectl", default="kubectl",
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help="kubectl binary to use (default: kubectl on PATH)")
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ap.add_argument("--kubeconfig", help="path to kubeconfig (else KUBECONFIG/default)")
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ap.add_argument("--context", help="kube context to use")
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ap.add_argument("--json", action="store_true",
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help="emit the structured model as JSON instead of a report")
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ap.add_argument("--no-color", action="store_true", help="disable ANSI colour")
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args = ap.parse_args()
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if not args.no_color and sys.stdout.isatty():
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C.enable()
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kc = Kubectl(args.kubectl, args.kubeconfig, args.context)
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# --- fetch everything up front ---------------------------------------- #
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vms_raw = kc.get("virtualmachines.kubevirt.io")
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vmis_raw = kc.get("virtualmachineinstances.kubevirt.io")
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pvcs_raw = kc.get("persistentvolumeclaims")
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pvs_raw = kc.get("persistentvolumes")
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pods_raw = kc.get("pods")
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lh_vols_raw = kc.get("volumes.longhorn.io", LONGHORN_NS)
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lh_reps_raw = kc.get("replicas.longhorn.io", LONGHORN_NS)
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pvc_index = {(p["metadata"]["namespace"], p["metadata"]["name"]): p for p in pvcs_raw}
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pv_index = {p["metadata"]["name"]: p for p in pvs_raw}
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lh_vol_index = {v["metadata"]["name"]: v for v in lh_vols_raw}
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replicas_by_vol: dict[str, list[dict]] = defaultdict(list)
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for rep in lh_reps_raw:
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vol_name = rep.get("spec", {}).get("volumeName")
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if vol_name:
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replicas_by_vol[vol_name].append(rep)
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# VMI node + status lookup, keyed by (ns, name).
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vmi_index = {(v["metadata"]["namespace"], v["metadata"]["name"]): v for v in vmis_raw}
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# --- assemble VMs ------------------------------------------------------ #
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vms: list[VM] = []
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for raw in vms_raw:
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ns = raw["metadata"]["namespace"]
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name = raw["metadata"]["name"]
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status = raw.get("status", {}).get("printableStatus", "") or "Unknown"
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spec_vols = (raw.get("spec", {}).get("template", {})
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.get("spec", {}).get("volumes", []))
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pvcs = vm_referenced_pvcs(spec_vols, ns)
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node = None
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vmi = vmi_index.get((ns, name))
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if vmi:
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node = vmi.get("status", {}).get("nodeName")
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# Include hot-plugged / VMI-level volumes too.
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for extra in vm_referenced_pvcs(vmi.get("spec", {}).get("volumes", []), ns):
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if extra not in pvcs:
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pvcs.append(extra)
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vms.append(VM(ns, name, status, node, pvcs))
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vms.sort(key=lambda v: (v.ns, v.name))
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vm_by_key = {(vm.ns, vm.name): vm for vm in vms}
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# --- pods that mount PVCs --------------------------------------------- #
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# A running VM's virt-launcher pod mounts every volume the VM actually uses
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# -- including ones KubeVirt manages outside spec.template.spec.volumes (the
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# persistent-state/EFI-vars PVC, hot-plugged disks). Attribute those to the
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||||
# owning VM so they show under the VM, not as "detached". Other pods are
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||||
# real non-VM consumers.
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pods_by_pvc: dict[tuple[str, str], list[tuple[str, str]]] = defaultdict(list)
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for pod in pods_raw:
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pns = pod["metadata"]["namespace"]
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pnode = pod.get("spec", {}).get("nodeName", "") or "?"
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||||
pname = pod["metadata"]["name"]
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claims = [v["persistentVolumeClaim"]["claimName"]
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for v in pod.get("spec", {}).get("volumes", []) or []
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||||
if v.get("persistentVolumeClaim", {}).get("claimName")]
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||||
if is_virt_launcher(pod):
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vm = vm_by_key.get((pns, virt_launcher_vm_name(pod)))
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||||
if vm is not None:
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||||
for c in claims:
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if (pns, c) not in vm.pvcs:
|
||||
vm.pvcs.append((pns, c))
|
||||
continue # a VM's own pod; its PVCs belong to the VM section
|
||||
for c in claims:
|
||||
pods_by_pvc[(pns, c)].append((pname, pnode))
|
||||
|
||||
# Set of PVCs owned by a VM (after folding in virt-launcher-mounted ones).
|
||||
vm_pvc_set: set[tuple[str, str]] = {p for vm in vms for p in vm.pvcs}
|
||||
|
||||
# --- build volumes for every PVC -------------------------------------- #
|
||||
def vol_for(ns_name: tuple[str, str]) -> Volume:
|
||||
return build_volume(ns_name[0], ns_name[1], pvc_index, pv_index,
|
||||
lh_vol_index, replicas_by_vol)
|
||||
|
||||
all_pvc_keys = set(pvc_index.keys()) | vm_pvc_set
|
||||
volumes = {k: vol_for(k) for k in all_pvc_keys}
|
||||
|
||||
# --- node inventory ---------------------------------------------------- #
|
||||
nodes = sorted({r.node for v in volumes.values() for r in v.replicas if r.node})
|
||||
|
||||
if args.json:
|
||||
emit_json(vms, volumes, pods_by_pvc, vm_pvc_set, nodes)
|
||||
return
|
||||
|
||||
print_node_safety(nodes, vms, volumes)
|
||||
print_vm_detail(vms, volumes)
|
||||
print_unattached(volumes, vm_pvc_set, pods_by_pvc)
|
||||
|
||||
|
||||
def _risk_line(vol: Volume) -> str:
|
||||
lh = vol.lh_name or "-"
|
||||
hn = ", ".join(sorted(vol.data_nodes)) or "(none)"
|
||||
return (f"{vol.pvc_ns}/{vol.pvc_name} [{lh}] "
|
||||
f"robustness={vol.robustness} usable-copies-on: {hn}")
|
||||
|
||||
|
||||
def print_node_safety(nodes, vms: list[VM], volumes: dict):
|
||||
hdr = f"{C.BOLD}=== NODE REMOVAL SAFETY ==={C.RESET}"
|
||||
print(hdr)
|
||||
if not nodes:
|
||||
print(" no replica-bearing nodes found (no Longhorn volumes?).\n")
|
||||
return
|
||||
|
||||
# Which VM (running?) owns each PVC, for severity.
|
||||
running_pvcs = {p for vm in vms if vm.running for p in vm.pvcs}
|
||||
|
||||
# Volumes already unavailable (no usable copy on any node) -- independent of
|
||||
# which node you remove. Reported once, globally, not per node.
|
||||
broken = [vol for vol in volumes.values() if vol.replicas and not vol.data_nodes]
|
||||
|
||||
for node in nodes:
|
||||
crit, warns = [], []
|
||||
for key, vol in volumes.items():
|
||||
if not vol.replicas or not vol.data_nodes:
|
||||
continue
|
||||
if vol.data_nodes == {node}:
|
||||
# Removing this node drops the last usable copy.
|
||||
(crit if key in running_pvcs else warns).append(vol)
|
||||
|
||||
if not crit and not warns:
|
||||
print(f" {C.GREEN}SAFE{C.RESET} {C.BOLD}{node}{C.RESET}: "
|
||||
f"every volume keeps a usable copy on another node.")
|
||||
continue
|
||||
|
||||
verdict = f"{C.RED}UNSAFE{C.RESET}" if crit else f"{C.YELLOW}CAUTION{C.RESET}"
|
||||
print(f" {verdict} {C.BOLD}{node}{C.RESET}:")
|
||||
if crit:
|
||||
print(f" {C.RED}running-VM data lost if removed ({len(crit)}):{C.RESET}")
|
||||
for vol in crit:
|
||||
print(f" - {_risk_line(vol)}")
|
||||
if warns:
|
||||
print(f" {C.YELLOW}idle/non-VM data lost if removed ({len(warns)}):{C.RESET}")
|
||||
for vol in warns:
|
||||
print(f" - {_risk_line(vol)}")
|
||||
|
||||
if broken:
|
||||
print(f"\n {C.RED}Already unavailable{C.RESET} "
|
||||
f"(no usable copy on ANY node -- fix before draining anything):")
|
||||
for vol in broken:
|
||||
print(f" - {_risk_line(vol)}")
|
||||
print()
|
||||
|
||||
|
||||
def _pvc_block(vol: Volume) -> str:
|
||||
head = (f" PVC {C.CYAN}{vol.pvc_ns}/{vol.pvc_name}{C.RESET}"
|
||||
f" vol={vol.lh_name or '-'} sc={vol.storage_class}")
|
||||
meta = []
|
||||
if vol.robustness != "-":
|
||||
meta.append(f"robustness={colour_health(vol.robustness)}")
|
||||
if vol.state != "-":
|
||||
meta.append(f"state={colour_health(vol.state)}")
|
||||
if vol.desired_replicas is not None:
|
||||
meta.append(f"desired-replicas={vol.desired_replicas}")
|
||||
if meta:
|
||||
head += " (" + " ".join(meta) + ")"
|
||||
if vol.note:
|
||||
head += f" {C.DIM}[{vol.note}]{C.RESET}"
|
||||
lines = [head]
|
||||
if vol.replicas:
|
||||
rows = [[r.name, r.node or "(unscheduled)", colour_health(r.health)]
|
||||
for r in vol.replicas]
|
||||
lines.append(render_table(["REPLICA", "NODE", "HEALTH"], rows, indent=" "))
|
||||
elif not vol.note:
|
||||
lines.append(f" {C.DIM}(no replicas reported){C.RESET}")
|
||||
return "\n".join(lines)
|
||||
|
||||
|
||||
def print_vm_detail(vms: list[VM], volumes: dict):
|
||||
print(f"{C.BOLD}=== VIRTUAL MACHINES ==={C.RESET}")
|
||||
if not vms:
|
||||
print(" no VirtualMachines found.\n")
|
||||
return
|
||||
for vm in vms:
|
||||
node = f" node={vm.node}" if vm.node else ""
|
||||
print(f"\n{C.BOLD}VM {vm.ns}/{vm.name}{C.RESET} "
|
||||
f"[{colour_status(vm.status)}]{node}")
|
||||
if not vm.pvcs:
|
||||
print(f" {C.DIM}(no PVC-backed volumes){C.RESET}")
|
||||
continue
|
||||
for key in vm.pvcs:
|
||||
print(_pvc_block(volumes[key]))
|
||||
print()
|
||||
|
||||
|
||||
def print_unattached(volumes: dict, vm_pvc_set, pods_by_pvc):
|
||||
non_vm = {k: v for k, v in volumes.items() if k not in vm_pvc_set}
|
||||
pod_attached = {k: v for k, v in non_vm.items() if pods_by_pvc.get(k)}
|
||||
detached = {k: v for k, v in non_vm.items() if not pods_by_pvc.get(k)}
|
||||
|
||||
print(f"{C.BOLD}=== PVCs NOT ATTACHED TO A VM ==={C.RESET}")
|
||||
if not non_vm:
|
||||
print(" none: every PVC is attached to a VM.\n")
|
||||
return
|
||||
|
||||
if pod_attached:
|
||||
print(f"\n {C.BOLD}Attached to non-VM pod(s):{C.RESET}")
|
||||
for key in sorted(pod_attached):
|
||||
consumers = ", ".join(f"{n} (node={nd})" for n, nd in pods_by_pvc[key])
|
||||
print(f" used by: {consumers}")
|
||||
print(_pvc_block(pod_attached[key]))
|
||||
|
||||
if detached:
|
||||
print(f"\n {C.BOLD}Completely detached (no consumer):{C.RESET}")
|
||||
for key in sorted(detached):
|
||||
print(_pvc_block(detached[key]))
|
||||
print()
|
||||
|
||||
|
||||
def emit_json(vms, volumes, pods_by_pvc, vm_pvc_set, nodes):
|
||||
def vol_dict(v: Volume):
|
||||
return {
|
||||
"pvc_namespace": v.pvc_ns,
|
||||
"pvc_name": v.pvc_name,
|
||||
"longhorn_volume": v.lh_name,
|
||||
"storage_class": v.storage_class,
|
||||
"robustness": v.robustness,
|
||||
"state": v.state,
|
||||
"desired_replicas": v.desired_replicas,
|
||||
"note": v.note or None,
|
||||
"replicas": [
|
||||
{"name": r.name, "node": r.node, "health": r.health,
|
||||
"has_data": r.has_data}
|
||||
for r in v.replicas
|
||||
],
|
||||
"usable_copy_nodes": sorted(v.data_nodes),
|
||||
}
|
||||
|
||||
running_pvcs = {p for vm in vms if vm.running for p in vm.pvcs}
|
||||
node_safety = {}
|
||||
for node in nodes:
|
||||
crit, warns = [], []
|
||||
for key, vol in volumes.items():
|
||||
if vol.replicas and vol.data_nodes == {node}:
|
||||
(crit if key in running_pvcs else warns).append(
|
||||
f"{vol.pvc_ns}/{vol.pvc_name}")
|
||||
node_safety[node] = {
|
||||
"safe": not crit and not warns,
|
||||
"running_vm_data_only_here": crit,
|
||||
"other_data_only_here": warns,
|
||||
}
|
||||
|
||||
out = {
|
||||
"nodes": nodes,
|
||||
"node_safety": node_safety,
|
||||
"vms": [
|
||||
{
|
||||
"namespace": vm.ns, "name": vm.name, "status": vm.status,
|
||||
"running": vm.running, "node": vm.node,
|
||||
"pvcs": [f"{ns}/{n}" for ns, n in vm.pvcs],
|
||||
}
|
||||
for vm in vms
|
||||
],
|
||||
"volumes": [vol_dict(v) for v in volumes.values()],
|
||||
"unattached": {
|
||||
f"{k[0]}/{k[1]}": {
|
||||
"pods": pods_by_pvc.get(k, []),
|
||||
"detached": not pods_by_pvc.get(k),
|
||||
}
|
||||
for k in volumes if k not in vm_pvc_set
|
||||
},
|
||||
}
|
||||
print(json.dumps(out, indent=2))
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
Reference in New Issue
Block a user