Add options to override server hostname and port

src/node/index.js

@@ -31,6 +31,13 @@ async function main() {
       describe: 'Enable control webserver and specify the URL',
       implies: ['cert-dir', 'email', 'username', 'password'],
     })
+    .option('hostname', {
+      describe: 'Override hostname the control server listens on',
+    })
+    .option('port', {
+      describe: 'Override port the control server listens on',
+      number: true,
+    })
     .option('cert-dir', {
       describe: 'Private directory to store SSL certificate in',
     })
@@ -100,6 +107,8 @@ async function main() {
       certDir: argv.certDir,
       email: argv.email,
       url: argv.webserver,
+      hostname: argv.hostname,
+      port: argv.port,
       username: argv.username,
       password: argv.password,
       getInitialState,

src/node/server.js

@@ -81,6 +81,8 @@ export default async function initWebServer({
   certDir,
   email,
   url: baseURL,
+  hostname: overrideHostname,
+  port: overridePort,
   username,
   password,
   getInitialState,
@@ -90,6 +92,12 @@ export default async function initWebServer({
   if (!port) {
     port = protocol === 'https' ? 443 : 80
   }
+  if (overrideHostname) {
+    hostname = overrideHostname
+  }
+  if (overridePort) {
+    port = overridePort
+  }
 
   const { app, broadcastState } = initApp({
     username,