ported from the standalone officer-atelier service: providers (adapter-shaped, openai the only adapter today), the generation queue, collections, and the database layer — kept on its own Postgres database rather than folded into officer_db, since both collections and provider_settings had rows on the machine this was extracted from. what changed rather than just moved: - images are served from an authenticated GET /files/:filename instead of an unauthenticated PUBLIC_URL-prefixed static route - the OpenAI-key bootstrap fallback reads the secret store (getSecret) before .env, per-adapter - provider_settings (the one-row-per-adapter shape providers replaced) did not come along — it has no callers left anywhere in the server code, only a migration script that also did not move ping/echo (smoke-test routes with no caller) did not move either; the sidecar's own /_health covers liveness. not yet wired into the platform: sidecar/index.ts exists but nothing mounts it, and web/ has not been written, so this is not yet a discoverable plugin.
97 lines
3.5 KiB
TypeScript
97 lines
3.5 KiB
TypeScript
import type { SidecarCommand, SidecarEvent } from '@@/sidecar/protocol';
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import { createSidecarConnector } from '@@/sidecar/connect';
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import { API_URL } from '@@/officer-url.mjs';
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import { buildHonoApp } from './hono';
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import { waitForDatabase } from './db';
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import { startQueue } from './generations/queue';
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// The officer-atelier sidecar. Owns the whole image-generation contract: providers, the generation
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// queue, and the `atelier` Postgres database (kept separate from officer_db — see ../PLUGIN.md).
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//
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// The platform API (../api/router.ts) is a thin auth-gated forwarder holding no provider credentials
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// of its own. This process binds a loopback port and reports it over the registration socket, exactly
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// like offscale's sidecar; `createSidecarProxy` on the platform side learns the port from the
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// `atelier:server` event and forwards `/api/atelier/*` here with the prefix stripped.
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/** Grab an ephemeral free port by briefly binding one and releasing it. */
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function getFreePort(): number {
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const probe = Bun.serve({ port: 0, hostname: '127.0.0.1', fetch: () => new Response('') });
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const p = probe.port;
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probe.stop(true);
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if (p == null) throw new Error('failed to acquire a free port');
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return p;
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}
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const port = getFreePort();
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const app = buildHonoApp();
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const server = Bun.serve({
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port,
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hostname: '127.0.0.1',
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// Generation runs 20-60s and a caller may long-poll for up to MAX_WAIT_SECONDS (sidecar/api/images.ts)
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// — the ceiling Bun allows, one below the ceiling rejected outright.
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idleTimeout: 255,
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// OpenAI's edits endpoint takes up to 16 images at 50MB each.
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maxRequestBodySize: 1024 * 1024 * 900,
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fetch(req, srv) {
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const url = new URL(req.url);
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// Liveness only — matches the shape every other HTTP sidecar in this codebase uses.
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if (url.pathname === '/_health') return Response.json({ ok: true });
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return app.fetch(req, srv);
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},
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});
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console.log(`[atelier] listening on 127.0.0.1:${port}`);
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type ReplyFn = (msg: SidecarEvent) => void;
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function handleCommand(cmd: SidecarCommand, reply: ReplyFn) {
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switch (cmd.type) {
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case 'ping':
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reply({ type: 'pong', id: cmd.id });
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break;
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default:
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reply({
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type: 'error',
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id: (cmd as SidecarCommand).id,
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error: `Unknown command type: ${(cmd as Record<string, unknown>).type}`,
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});
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}
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}
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const connection = createSidecarConnector({
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apiUrl: `${API_URL}/api/sidecar/register`,
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name: 'atelier',
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handles: ['atelier'],
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onCommand(cmd, reply) {
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handleCommand(cmd as SidecarCommand, reply as ReplyFn);
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},
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onConnected() {
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// Tell the API where we're listening, so it can forward /api/atelier/* here.
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connection.send({ type: 'atelier:server', port });
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console.log(`[atelier] reported port ${port} to API`);
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},
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});
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// Awaited, not fired and forgotten. postgres-js is lazy, so on a cold boot the first query loses a
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// race with Postgres and the restart sweep (`failInterrupted`) — the only thing that corrects rows
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// left `running` by the last process — would fail once and be swallowed silently.
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void (async () => {
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if (await waitForDatabase()) await startQueue();
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else console.error('[atelier:queue] not started: no database');
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})();
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function shutdown(signal: string) {
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console.log(`[atelier] ${signal} received, shutting down...`);
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try {
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server.stop(true);
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} catch {
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/* already stopped */
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}
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connection.destroy();
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process.exit(0);
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}
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process.on('SIGTERM', () => shutdown('SIGTERM'));
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process.on('SIGINT', () => shutdown('SIGINT'));
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