feat: allow port to be configured

server/environment.ts

@@ -1,10 +1,18 @@
 export const environment = () => ({
-  loggingLevel: process.env.LOGGER_LEVEL ?? "info",
-  localConfigFile:
-    process.env.DOCKER_DASH_LOCAL_CONFIG_FILE ??
-    process.env.NODE_ENV === "production"
-      ? "/config.json"
-      : "./config.json",
+  get port() {
+    const envVar = process.env.DOCKER_DASH_PORT;
+    if (envVar) {
+      try {
+        return parseInt(envVar, 10);
+      } catch (error) {
+        console.error("[environment] Error getting port", error);
+      }
+    }
+    return 3000;
+  },
+  dev: process.env.NODE_ENV !== "production",
+  loggingLevel: process.env.DOCKER_DASH_LOGGER_LEVEL ?? "info",
+  localConfigFile: process.env.DOCKER_DASH_LOCAL_CONFIG_FILE ?? "/config.json",
 });
 
 export type Environment = ReturnType<typeof environment>;

server/index.ts

@@ -15,8 +15,7 @@ import { environment } from "./environment";
 import { agent } from "./agent";
 import { ReplaySubject } from "rxjs";
 
-const port = parseInt(process.env.PORT || "3000", 10);
-const dev = process.env.NODE_ENV !== "production";
+const { port, dev } = environment();
 
 async function tryQuietly(fn: () => any | Promise<any>) {
   return async () => {