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419d3d0b4e
PushResponse.ConfigVersion from the report ACK; ConfigRefresher reconciles vs. the last-applied version (settings.applied_config_version) and on a change calls bootstrap.RefreshConfig (re-pull controller.yaml + re-merge local_api) then GracefulSelfRestart. First-run records baseline (no restart); unchanged = no-op (no storm); failed pull keeps config + retries. Companion to hub v0.26.0. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HxLA1mZurFq9kt8hneFeCs
55 lines
2.0 KiB
Go
55 lines
2.0 KiB
Go
package api
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import (
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"log"
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"net/http"
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"os"
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"time"
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)
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// restartDelay gives the in-flight HTTP response time to flush before the process exits.
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const restartDelay = 500 * time.Millisecond
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// gracefulSelfRestart schedules a clean process exit after a short delay. The container
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// runs with `restart: unless-stopped`, so exiting 0 makes Docker start a fresh process
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// that re-reads controller.yaml. This is how a config-apply (e.g. a rotated Cloudflare
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// API token) and the manual restart button actually take effect: singletons such as the
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// Cloudflare client are built once at startup and are not reloaded in-process.
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func gracefulSelfRestart(logger *log.Logger) {
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GracefulSelfRestart(logger)
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}
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// GracefulSelfRestart is the exported entry point to the same graceful restart, so non-api callers
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// (the config-refresh reconcile wired in main.go) reuse this one mechanism instead of reinventing an
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// os.Exit path. See gracefulSelfRestart for the rationale.
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func GracefulSelfRestart(logger *log.Logger) {
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go func() {
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time.Sleep(restartDelay)
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if logger != nil {
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logger.Println("[INFO] [api] Graceful self-restart: exiting (0) for container restart")
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}
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os.Exit(0)
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}()
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}
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// flushResponse flushes buffered output to the client if the writer supports it, so the
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// caller receives the response body before a subsequent self-restart kills the process.
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func flushResponse(w http.ResponseWriter) {
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if f, ok := w.(http.Flusher); ok {
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f.Flush()
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}
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}
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// selfRestart handles POST /api/selfrestart — a customer-facing self-serve restart so a
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// user can recover the controller without rebooting the whole guest. Auth + CSRF are
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// applied by the /api/ mux mount (same protection as every other state-changing endpoint).
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// Responds first, flushes, then triggers the graceful restart.
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func (r *Router) selfRestart(w http.ResponseWriter, _ *http.Request) {
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r.logger.Println("[INFO] [api] Manual controller restart requested")
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writeJSON(w, http.StatusOK, apiResponse{OK: true, Message: "Újraindítás folyamatban…"})
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flushResponse(w)
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if r.restart != nil {
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r.restart()
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}
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}
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