Method restart

scripts/guardian/shared.ts:394–425

()

  }

  async restart(): Promise<void> {
    if (this.restarting) {
      console.log(`[guardian] UTA restart already in progress, skipping`)
      return
    }
    this.restarting = true
    try {
      console.log(`[guardian] restarting UTA`)
      const old = this.child
      this.cascade?.expectExit(old)
      const exited = new Promise<void>((resolve) => old.once('exit', () => resolve()))
      killTree(old, 'SIGTERM')
      await Promise.race([exited, sleep(8_000)])
      if (old.exitCode === null) {
        killTree(old, 'SIGKILL')
        await exited
      }

      const next = spawnChild(this.spec)
      this.child = next
      this.cascade?.trackReplacement(old, next)

      const ready = await waitForHttp(this.healthUrl, { timeoutMs: 15_000 })
      if (!ready) {
        console.error(`[guardian] UTA failed to come back up after restart`)
        return
      }
      console.log(`[guardian] UTA back online`)
    } finally {
      this.restarting = false
    }
  }
}

// ==================== restart-flag watcher ====================