admin
aa4dfb75ea
Add a host-wide, token-authed GET /host/metrics local-API endpoint that re-serves the slice-4 collector's host + per-storage view to the customer (the de-privileged controller can't read the host itself). Add the one new collector — CPU/chassis temperature via sysfs hwmon/thermal-zones, graceful- null — to the shared HostMetrics struct, so the hub report carries cpu_temp_c too. Cross-repo host-report golden updated byte-identical. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
50 lines
2.2 KiB
Go
50 lines
2.2 KiB
Go
package localapi
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import (
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"net/http"
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"gitea.dooplex.hu/admin/felhom-agent/internal/hub"
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)
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// Host metrics (slice 9, doc 03 §6). The de-privileged controller (slice 8C) can only see its own
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// cgroup, so it cannot read host health itself. This endpoint re-serves the slice-4 collector's
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// host + per-storage view to the customer so the controller can render the box's health.
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//
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// Host-wide, token-authed, fresh: the metrics are about the BOX (not per-guest), so any valid
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// per-guest token gets the host-wide view (assumption: one customer per host — the home-server
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// model). It is a live collect (fresh cpu%/temp), not the 15-min hub-report snapshot.
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// HostMetricsResponse is GET /host/metrics: the host block + per-storage capacity targets.
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type HostMetricsResponse struct {
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VMID int `json:"vmid"`
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Host hub.HostMetrics `json:"host"` // cpu%/mem/load/uptime/cpu_temp_c
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StorageTargets []hub.StorageTarget `json:"storage_targets"` // per-storage total/used/thin-pool/SMART temp+wear
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}
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// handleHostMetrics serves a fresh host-health snapshot. The host block comes from a live
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// collector read; the per-storage capacity comes from the observer (the same source the hub
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// report uses). Best-effort on storage: a storage-view error still returns the host block (the
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// CPU/mem/temp view is the headline) with an empty targets list.
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func (s *Server) handleHostMetrics(w http.ResponseWriter, r *http.Request, vmid int) {
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if s.hostMetrics == nil {
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writeErr(w, http.StatusServiceUnavailable, "host metrics not configured on this host")
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return
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}
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host, err := s.hostMetrics.HostMetricsNow(r.Context())
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if err != nil {
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s.logger.Error("local-api: /host/metrics collect", "vmid", vmid, "err", err)
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writeErr(w, http.StatusBadGateway, "could not read host metrics")
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return
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}
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targets, err := s.storage.Observe(r.Context())
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if err != nil {
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// Host health is the headline — don't sink it on a storage-view hiccup.
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s.logger.Warn("local-api: /host/metrics storage view unavailable", "vmid", vmid, "err", err)
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targets = []hub.StorageTarget{}
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}
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if targets == nil {
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targets = []hub.StorageTarget{}
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}
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writeOK(w, HostMetricsResponse{VMID: vmid, Host: host, StorageTargets: targets})
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}
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