Build script

A build process that generates a package with single executable for each
component.

lib/cluster.js

@@ -20,44 +20,10 @@
 
 const cluster = require("cluster");
 const logger = require("./logger");
-const config = require("./config");
-
-const VERSION = require("../package.json").version;
 
 let respawnTimestamp = 0;
 let tooManyCrashesTimestamp = 0;
 
-function getDependencyVersions() {
-  const dependencies = [`node@${process.versions.node}`];
-  try {
-    const npmls = JSON.parse(
-      require("child_process").execSync("npm ls --prod --json --depth 0")
-    );
-
-    for (const k in npmls.dependencies)
-      dependencies.push(`${k}@${npmls.dependencies[k].version}`);
-  } catch (err) {
-    // Continue regardless of error
-  }
-
-  return dependencies.join(",");
-}
-
-function getConfig() {
-  const conf = [];
-  const keys = Object.keys(process.env);
-  for (const k of keys) {
-    if (k.startsWith("GENIEACS_")) {
-      const name = k.slice(9);
-      const value = process.env[k];
-      const def = config.getDefault(name);
-      if (def == null || value !== `${def}`) conf.push(`${name}=${value}`);
-    }
-  }
-
-  return conf.join(",");
-}
-
 function restartWorker(worker, code, signal) {
   const msg = {
     message: "Worker died",
@@ -96,24 +62,12 @@ function restartWorker(worker, code, signal) {
   }, respawnTimestamp - now);
 }
 
-function start(service) {
-  logger.init(service, VERSION);
-  const SERVICE_ADDRESS = config.get(`${service.toUpperCase()}_INTERFACE`);
-  const SERVICE_PORT = config.get(`${service.toUpperCase()}_PORT`);
-
-  logger.info({
-    message: `GenieACS (genieacs-${service}) starting`,
-    pid: process.pid,
-    version: VERSION,
-    dependencies: getDependencyVersions(),
-    config: getConfig()
-  });
-
+function start(workerCount, servicePort, serviceAddress) {
   cluster.on("listening", (worker, address) => {
     if (
       (address.addressType === 4 || address.addressType === 6) &&
-      address.address === SERVICE_ADDRESS &&
-      address.port === SERVICE_PORT
+      address.address === serviceAddress &&
+      address.port === servicePort
     ) {
       logger.info({
         message: "Worker listening",
@@ -126,46 +80,16 @@ function start(service) {
 
   cluster.on("exit", restartWorker);
 
-  process.on("SIGINT", () => {
-    logger.info({
-      message: "Received signal SIGINT, exiting",
-      pid: process.pid
-    });
-
-    cluster.removeListener("exit", restartWorker);
-  });
-
-  process.on("SIGTERM", () => {
-    logger.info({
-      message: "Received signal SIGTERM, exiting",
-      pid: process.pid
-    });
-
-    cluster.removeListener("exit", restartWorker);
-    for (const pid in cluster.workers) cluster.workers[pid].kill();
-  });
-
-  cluster.setupMaster({
-    exec: "lib/server",
-    args: [service]
-  });
-
-  let workerCount = config.get(`${service.toUpperCase()}_WORKER_PROCESSES`);
-
   if (!workerCount) workerCount = Math.max(2, require("os").cpus().length);
 
   for (let i = 0; i < workerCount; ++i) cluster.fork();
 }
 
-process.on("uncaughtException", err => {
-  logger.error({
-    message: "Uncaught exception in master process, exiting",
-    exception: err,
-    pid: process.pid
-  });
-  process.exitCode = 1;
+function stop() {
   cluster.removeListener("exit", restartWorker);
   for (const pid in cluster.workers) cluster.workers[pid].kill();
-});
+}
 
 exports.start = start;
+exports.stop = stop;
+exports.worker = cluster.worker;