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Co-authored-by: Cursor <cursoragent@cursor.com>
97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
// Package buildinfo exposes stamped build metadata and the shared ops /healthz JSON.
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package buildinfo
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import (
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"encoding/json"
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"net/http"
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"time"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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)
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// Populated at link time via -ldflags -X.
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var (
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Date = "unknown"
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Commit = "dev"
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Branch = "unknown"
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)
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// Hardcoded service identity for autodiscovery / status dashboard.
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const (
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Name = "l-ai-agent-kaya"
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Description = "Tasks board agent Kaya: @kaya mention replies via core RunAgent"
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)
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// Tags is the controlled vocabulary for this service (see l-ai-docs services/healthz.md).
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var Tags = []string{"agent", "tasks", "llm"}
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var startedAt = time.Now()
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func init() {
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promauto.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "build_info",
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Help: "Build metadata for this process (always 1).",
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},
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[]string{"name", "commit", "branch", "date"},
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).With(prometheus.Labels{
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"name": Name,
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"commit": Commit,
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"branch": Branch,
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"date": Date,
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}).Set(1)
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}
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// Build is the nested build object in /healthz.
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type Build struct {
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Date string `json:"date"`
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Commit string `json:"commit"`
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Branch string `json:"branch"`
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}
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// Response is the shared /healthz JSON contract.
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type Response struct {
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Status string `json:"status"`
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Name string `json:"name"`
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Description string `json:"description"`
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Tags []string `json:"tags"`
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UptimeSeconds int64 `json:"uptime_seconds"`
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Build Build `json:"build"`
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}
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// Snapshot returns the current health payload with status "ok".
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func Snapshot() Response {
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tags := make([]string, len(Tags))
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copy(tags, Tags)
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return Response{
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Status: "ok",
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Name: Name,
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Description: Description,
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Tags: tags,
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UptimeSeconds: int64(time.Since(startedAt).Seconds()),
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Build: Build{
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Date: Date,
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Commit: Commit,
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Branch: Branch,
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},
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}
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}
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// Handler serves GET/HEAD /healthz as application/json (always 200 while process is up).
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func Handler() http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodGet && r.Method != http.MethodHead {
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http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
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return
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}
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writeJSON(w, http.StatusOK, Snapshot())
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})
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}
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func writeJSON(w http.ResponseWriter, code int, body Response) {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(code)
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_ = json.NewEncoder(w).Encode(body)
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}
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