fix: lack of SIGTERM handling.

ok-server.mjs

@@ -205,7 +205,7 @@ function getClientIp(req) {
 
 function parseArgs(argv) {
   let bind = "0.0.0.0";
-  let port = 8000;
+  let port = 8080;
   let look = "nice";
 
   for (let i = 0; i < argv.length; i += 1) {
@@ -253,7 +253,7 @@ function parseArgs(argv) {
         "",
         "Defaults:",
         "  --bind 0.0.0.0",
-        "  --port 8000",
+        "  --port 8080",
         "  --look nice",
       ].join("\n");
       console.log(help);
@@ -267,6 +267,7 @@ function parseArgs(argv) {
 }
 
 function run(bind, port, look) {
+  let isShuttingDown = false;
   const server = http.createServer((req, res) => {
     const method = req.method || "GET";
 
@@ -309,10 +310,17 @@ function run(bind, port, look) {
     console.log(`Serving on ${bind}:${port} (default look=${look}) (Ctrl-C to stop)`);
   });
 
-  process.on("SIGINT", () => {
+  function handleShutdownSignal() {
+    if (isShuttingDown) {
+      return;
+    }
+    isShuttingDown = true;
     console.log("\nShutting down server");
     server.close(() => process.exit(0));
-  });
+  }
+
+  process.on("SIGINT", handleShutdownSignal);
+  process.on("SIGTERM", handleShutdownSignal);
 }
 
 try {