feat(ecosystem): update PM2 configuration for control plane and web server

- Renamed the control process to `jflow-control` and updated the script path to `control.js`. - Introduced a new `jflow-web` process for the production UI, serving on port 8500. - Enhanced environment variable handling for both processes, ensuring proper port assignments. - Updated README to reflect new process architecture and usage instructions for starting the application.
2026-08-22 22:32:04 +07:00
parent 0a8463d8f4
commit be8122f9e5
6 changed files with 270 additions and 16 deletions
@@ -0,0 +1,97 @@
+const HOP_BY_HOP = new Set([
+  "connection",
+  "keep-alive",
+  "proxy-authenticate",
+  "proxy-authorization",
+  "te",
+  "trailer",
+  "transfer-encoding",
+  "upgrade",
+  "host",
+  "content-length",
+]);
+
+const REPLY_SKIP = new Set([
+  "connection",
+  "keep-alive",
+  "transfer-encoding",
+  "content-encoding",
+  "content-length",
+]);
+
+/**
+ * Control origin used when the UI or HTTP process proxies to control.
+ * @returns {string}
+ */
+export function controlOrigin() {
+  const explicit = process.env.JFLOW_CONTROL_URL?.trim();
+  if (explicit) return explicit.replace(/\/$/, "");
+  const port = Number(process.env.JFLOW_CONTROL_PORT ?? 8600);
+  return `http://127.0.0.1:${port}`;
+}
+
+/**
+ * HTTP API origin (workflow triggers + REST).
+ * @returns {string}
+ */
+export function httpOrigin() {
+  const explicit = process.env.JFLOW_HTTP_URL?.trim();
+  if (explicit) return explicit.replace(/\/$/, "");
+  const port = Number(process.env.JFLOW_HTTP_PORT ?? process.env.PORT ?? 8700);
+  return `http://127.0.0.1:${port}`;
+}
+
+/**
+ * Forward the incoming request to `origin`, preserving path + query.
+ * @param {import("fastify").FastifyRequest} req
+ * @param {import("fastify").FastifyReply} reply
+ * @param {string} origin
+ * @param {{ unreachableMessage?: string }} [opts]
+ */
+export async function proxyToOrigin(req, reply, origin, opts = {}) {
+  const target = `${origin.replace(/\/$/, "")}${req.raw.url ?? "/"}`;
+  const headers = {};
+  for (const [key, value] of Object.entries(req.headers)) {
+    if (value == null || HOP_BY_HOP.has(key.toLowerCase())) continue;
+    headers[key] = Array.isArray(value) ? value.join(", ") : String(value);
+  }
+
+  const method = req.method.toUpperCase();
+  const hasBody = method !== "GET" && method !== "HEAD";
+  let body;
+  if (hasBody) {
+    if (Buffer.isBuffer(req.body)) body = req.body;
+    else if (typeof req.body === "string") body = req.body;
+    else if (req.body != null) {
+      body = JSON.stringify(req.body);
+      if (!headers["content-type"]) headers["content-type"] = "application/json";
+    }
+  }
+
+  let res;
+  try {
+    res = await fetch(target, { method, headers, body });
+  } catch (err) {
+    const message = opts.unreachableMessage ?? "upstream unreachable";
+    req.log.warn({ err, target }, `proxy: ${message}`);
+    return reply.code(502).send({ error: message });
+  }
+
+  reply.code(res.status);
+  res.headers.forEach((value, key) => {
+    if (REPLY_SKIP.has(key.toLowerCase())) return;
+    reply.header(key, value);
+  });
+  return reply.send(Buffer.from(await res.arrayBuffer()));
+}
+
+/**
+ * Forward `/ops/*` to the control plane (same-origin UI in production).
+ * @param {import("fastify").FastifyRequest} req
+ * @param {import("fastify").FastifyReply} reply
+ */
+export async function proxyOpsToControl(req, reply) {
+  return proxyToOrigin(req, reply, controlOrigin(), {
+    unreachableMessage: "control plane unreachable",
+  });
+}