Use nginx for docker image

Dockerfile

@@ -12,26 +12,11 @@ RUN npm run $NPM_BUILD_COMMAND
 
 
 # Second stage: Server to deliver files
-FROM node:alpine
-
-# Port 8080 can be used as non root
-EXPOSE 8080
-
-# Create user with home directory and no password
-RUN adduser -Dh /admintool admintool
-USER admintool
-WORKDIR /admintool
-
-# Install http server
-RUN npm install --no-save http-server
+FROM nginx:1.15-alpine
 
 # Copy files from first stage
-COPY --from=build /index.html /admintool/
-COPY --from=build /dist /admintool/dist
-
-# Serve index.html for every file which is not found on the server
-# Hotfix for direct links
-RUN ln index.html 404.html
+COPY --from=build /index.html /var/www/
+COPY --from=build /dist /var/www/dist
 
-# Run server (-g will automatically serve the gzipped files if possible)
-CMD ["/admintool/node_modules/.bin/http-server", "-g", "/admintool"]
+# Copy nginx configuration
+COPY nginx.conf /etc/nginx/conf.d/default.conf

nginx.conf

+server {
+  listen         80 default_server;
+  listen         [::]:80 default_server;
+  server_name    _;
+  root           /var/www/;
+  index          index.html;
+
+  try_files $uri /index.html =404;
+}