update docker file

Dockerfile

@@ -1,18 +1,15 @@
-FROM nginx:alpine
-
-# Move to Nginx's public folder
-WORKDIR /usr/share/nginx/html
-
-# 1. CRUCIAL: Remove Nginx's default "Welcome" page files completely
-RUN rm -rf ./*
-
-# 2. Copy your compiled static assets into the root folder.
-# NOTE: If your folder is named "dist" instead of "build", change "build/" to "dist/"
-COPY build/ .
-
-# 3. Copy your custom Nginx configuration (which you already have in your log)
-COPY nginx.conf /etc/nginx/nginx.conf
-
-EXPOSE 80
-
-CMD ["nginx", "-g", "daemon off;"]
+FROM node:18-alpine
+
+WORKDIR /app
+
+# Next.js standalone config and environment
+ENV NODE_ENV production
+ENV PORT 80
+ENV HOSTNAME "0.0.0.0"
+
+# Copy the pre-built standalone app from the build context
+COPY build /app
+
+EXPOSE 80
+
+CMD ["node", "server.js"]