Fix docker build

Dockerfile

@@ -1,2 +1,20 @@
-FROM nginx:alpine
-COPY ./out /usr/share/nginx/html
+FROM node:16-alpine
+WORKDIR /app
+ENV NODE_ENV production
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nextjs
+
+COPY /next.config.js ./
+COPY  /public ./public
+COPY /package.json ./package.json
+
+# Automatically leverage output traces to reduce image size
+# https://nextjs.org/docs/advanced-features/output-file-tracing
+COPY --chown=nextjs:nodejs /.next/standalone ./
+COPY --chown=nextjs:nodejs /.next/static ./.next/static
+
+USER nextjs
+EXPOSE 7575
+ENV PORT 7575
+VOLUME /app/data/configs
+CMD ["node", "server.js"]