Overwriting Nginx config on AWS Elastic Beanstalk

03_elastic_beanstalk_nginx.config

files:
  "/etc/nginx/conf.d/01_app_server.conf":
    mode: "000644"
    owner: root
    group: root
    content: |
      # The content of this file is based on the content of /etc/nginx/conf.d/webapp_healthd.conf
      upstream website_upstream {
        server unix:///var/run/puma/my_app.sock;
      }

      log_format website_healthd '$msec"$uri"'
                      '$status"$request_time"$upstream_response_time"'
                      '$http_x_forwarded_for';

      server {
        listen 80;
        server_name _ localhost; # need to listen to localhost for worker tier

        if ($time_iso8601 ~ "^(\d{4})-(\d{2})-(\d{2})T(\d{2})") {
          set $year $1;
          set $month $2;
          set $day $3;
          set $hour $4;
        }

        access_log  /var/log/nginx/access.log  main;
        access_log /var/log/nginx/healthd/application.log.$year-$month-$day-$hour website_healthd;

        location / {
          proxy_pass http://ajwebsite_upstream; # match the name of upstream directive which is defined above
          proxy_set_header Host $host;
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }

        location /assets {
          alias /var/app/current/public/assets;
          gzip_static on;
          gzip on;
          expires max;
          add_header Cache-Control public;
          add_header Access-Control-Allow-Origin '*';
          add_header Access-Control-Allow-Credentials 'true';
          add_header Access-Control-Allow-Methods 'GET, POST, HEAD, OPTIONS';
          add_header Access-Control-Allow-Headers 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
        }

        location /public {
          alias /var/app/current/public;
          gzip_static on;
          gzip on;
          expires max;
          add_header Cache-Control public;
        }

        add_header Strict-Transport-Security "max-age=15768000; includeSubDomains" always;
        gzip on;
        gzip_http_version 1.1;
        gzip_vary on;
        gzip_comp_level 6;
        gzip_proxied any;
 
        error_page 500 502 503 504 /500.html;
        client_max_body_size 10M;
        keepalive_timeout 10;
      }

container_commands:
  01_remove_webapp_healthd:
    command: "rm -f /opt/elasticbeanstalk/support/conf/webapp_healthd.conf /etc/nginx/conf.d/webapp_healthd.conf"
  02_reload_nginx:
    command: "sudo service nginx reload"

The ajwebsite_upstream doesn't actually reference anything. It probably should be website_upstream as defined at line 8

hello , i need to activate 2 things on my nginix beanstalk:
1/ - Activate gzip_proxied
2/ - Set 305 Seconds on the Timout Nginix Beanstalk,

how can i do this please?

thanks