improvement(docker): gzip static files (via #5199)

Dockerfile

@@ -20,6 +20,8 @@ COPY ./dist/* /usr/share/nginx/html/
 COPY ./docker/run.sh /usr/share/nginx/
 COPY ./docker/configurator /usr/share/nginx/configurator
 
+RUN find /usr/share/nginx/html/ -type f -regex ".*\.\(html\|js\|css\)" -exec sh -c "gzip < {} > {}.gz" \;
+
 RUN chmod +x /usr/share/nginx/run.sh
 
 EXPOSE 8080

docker/nginx.conf

@@ -12,6 +12,13 @@ http {
 
   keepalive_timeout   65;
 
+  gzip on;
+  gzip_static on;
+  gzip_disable "msie6";
+
+  gzip_vary on;
+  gzip_types text/plain text/css application/javascript;
+
   map $request_method $access_control_max_age {
     OPTIONS 1728000; # 20 days
   }