Claude
fc2554e5c3
On `docker compose up`/restart the bot and app start together. The bot's `depends_on: app` uses `condition: service_started`, which only waits for the app container to launch — not for its internal server (3001) to be listening after it reaches the DB and boots Express. bootstrap.js did a single un-retried fetch, lost that race, gave up, and left the bot disconnected while the DB `enabled` flag stayed true — so the admin panel showed "enabled but disconnected" until an admin toggled off/on to force a pushConfig. Retry the boot config fetch with backoff (~1 min, 2s apart) until the app answers: retry on network errors and 5xx, bail on 4xx (a real misconfig, not a startup race). Also wrap discordManager.start in try/catch so a bad-token boot logs and keeps the process alive instead of crashing it via server.js's exit-on-start-failure. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0114TpmrNW4wNXsHq5CR72jQ
75 lines
3.2 KiB
JavaScript
75 lines
3.2 KiB
JavaScript
// Runs once at process start, before the internal Express server is
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// considered ready. Fetches current config from the main site (token,
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// guildId, enabled) and reconnects immediately if enabled — so a bot
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// container restart (crash, `docker compose restart`, host reboot) self-heals
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// without any admin-panel interaction. Node 20's built-in fetch is used; no
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// extra HTTP client dependency needed for a single startup call.
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//
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// The fetch RETRIES with backoff: on `docker compose up`, the bot and the app
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// start together and the bot's `depends_on: app` only waits for the container
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// to *start*, not for the app's internal server to be listening (it still has
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// to reach the DB and boot Express). Without retries the very first fetch loses
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// that race, bootstrap gives up, and the bot sits disconnected while the DB
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// still says enabled — the exact "enabled but disconnected until I toggle it"
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// bug. Retrying until the site answers makes a cold whole-stack start heal on
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// its own.
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const discordManager = require('./discord/discordManager')
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const createLogger = require('./utils/logger')
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const log = createLogger('bootstrap')
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const MAX_ATTEMPTS = 30 // ~30 tries * ~2s ≈ 1 min of patience for the app to come up
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const RETRY_DELAY_MS = 2000
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const sleep = (ms) => new Promise((resolve) => setTimeout(resolve, ms))
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// Fetch config from the site, retrying while the site is unreachable or not yet
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// ready (network error or 5xx). Returns the parsed config, or null if we gave
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// up after MAX_ATTEMPTS. A 4xx (e.g. bad internal key) is a real misconfig, not
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// a transient startup race, so we don't retry those.
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async function fetchConfig(siteUrl, key) {
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for (let attempt = 1; attempt <= MAX_ATTEMPTS; attempt += 1) {
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try {
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const res = await fetch(siteUrl, { headers: { 'X-Internal-Key': key } })
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if (res.ok) return await res.json()
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if (res.status >= 400 && res.status < 500) {
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log.error('boot-time config fetch rejected — not retrying', { status: res.status })
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return null
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}
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log.warn('boot-time config fetch not ready — retrying', { status: res.status, attempt })
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} catch (err) {
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log.warn('boot-time config fetch errored — retrying', { message: err.message, attempt })
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}
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if (attempt < MAX_ATTEMPTS) await sleep(RETRY_DELAY_MS)
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}
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log.error('boot-time config fetch gave up after retries — staying disconnected until the admin panel pushes config', {
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attempts: MAX_ATTEMPTS,
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})
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return null
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}
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async function bootstrap() {
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const siteUrl = process.env.SITE_INTERNAL_URL
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const key = process.env.BOT_INTERNAL_KEY
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if (!siteUrl || !key) {
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log.warn('SITE_INTERNAL_URL or BOT_INTERNAL_KEY not set — skipping boot-time config fetch, staying disconnected until the admin panel pushes config')
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return
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}
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const config = await fetchConfig(siteUrl, key)
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if (!config) return
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if (config.enabled) {
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log.info('boot-time config says enabled — reconnecting', { guildId: config.guildId })
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try {
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await discordManager.start({ token: config.token, guildId: config.guildId })
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} catch (err) {
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log.error('boot-time reconnect failed', { message: err.message })
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}
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} else {
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log.info('boot-time config says disabled — staying disconnected')
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}
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}
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module.exports = bootstrap
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