nginx.conf

daemon off;

worker_processes auto;

worker_rlimit_nofile 10000;

user nobody nogroup;

pid /tmp/nginx.pid;

events {
  worker_connections 2048;
  accept_mutex off; # "on" if nginx worker_processes > 1
  use epoll;
}


http{

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie6";

    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
    # Specify the minimum length of the response to compress (default 20)
    gzip_min_length 500;

    log_format main '{"remote_addr": "$remote_addr","X-Original-Forwarded-For": "$proxy_add_x_forwarded_for","X-Forwarded-For": "$remote_user","time_local": "$time_local","request": "$request","status": "$status","body_bytes_sent": "$body_bytes_sent","http_referer": "$http_referer","http_user_agent": "$http_user_agent","request_length": "$request_length","Authorization": "$http_Authorization","url-path": "$document_uri","query-string": "$query_string","X-Original-Uri": "$request_uri" ,"http_cookie": "$http_cookie","X-Amzn-Trace-Id": "$http_x_amzn_trace_id"}';

    access_log /var/log/nginx/access.log main;
    error_log /var/log/nginx/error.log;

      server {
          listen 80 default_server;
          listen [::]:80 default_server;
          server_name _;

          location /ready {
              access_log off;
              return 200 "{\"ready\": true}";
          }
          location /alive {
              access_log off;
              return 200 "{\"alive\": true}";
          }

          location / {

              alias /app/production/;
              index index.html;

              include /etc/nginx/mime.types;

              expires 6M;

              # forbid browsers to cache the main index and the discovery.config....js
              location ^~ /discovery.config {
                  expires 0;
                  add_header Cache-Control "public";
              }
              location ^~ /index {
                  expires 0;
                  add_header Cache-Control "public";
              }

              # allow CORS requests for static files (the only thing we are serving
              # right now; this is necessary for embedded applicaitons loading js
              # from different urls)
              if ($request_method = 'OPTIONS') {
                  add_header 'Access-Control-Allow-Origin' '*';
                  add_header 'Access-Control-Allow-Credentials' 'true';
                  add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
                  add_header 'Access-Control-Allow-Headers' 'X-BB-Api-Client-Version,Keep-Alive,User-Agent,If-Modified-Since,Cache-Control,Content-Type';
                  # Tell client that this pre-flight info is valid for 20 days
                  add_header 'Access-Control-Max-Age' 1728000;
                  add_header 'Content-Type' 'text/plain charset=UTF-8';
                  add_header 'Content-Length' 0;
                  return 204;
              }
              if ($request_method = 'GET') {
                  add_header 'Access-Control-Allow-Origin' '*';
                  add_header 'Access-Control-Allow-Credentials' 'true';
                  add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
                  add_header 'Access-Control-Allow-Headers' 'X-BB-Api-Client-Version,Keep-Alive,User-Agent,If-Modified-Since,Cache-Control,Content-Type';
              }
        }

        # the rules below are for push-state
        location /search {
            alias /app/production/;
            index index.html;
            include /etc/nginx/mime.types;
            try_files $uri /index.html;
        }

        location /link_gateway {
          set $dev https://dev.adsabs.harvard.edu/link_gateway;
          proxy_pass $dev;
        }

        location /abs/ {
            alias /app/production/;
            index index.html;
            include /etc/nginx/mime.types;
            try_files $uri /index.html;
        }

        location /user/ {
            alias /app/production/;
            index index.html;
            include /etc/nginx/mime.types;
            try_files $uri /index.html;
        }

        location /index/ {
            alias /app/production/;
            index index.html;
            include /etc/nginx/mime.types;
            try_files $uri /index.html;
        }

        location /feedback/ {
            alias /app/production/;
            index index.html;
            include /etc/nginx/mime.types;
            try_files $uri /index.html;
        }

        location /execute-query/ {
            alias /app/production/;
            index index.html;
            include /etc/nginx/mime.types;
            try_files $uri /index.html;
        }

        location /public-libraries {
            alias /app/production/;
            index index.html;
            include /etc/nginx/mime.types;
            try_files $uri /index.html;
        }

        location /classic-form {
            alias /app/production/;
            index index.html;
            include /etc/nginx/mime.types;
            try_files $uri /index.html;
        }

        location /paper-form {
            alias /app/production/;
            index index.html;
            include /etc/nginx/mime.types;
            try_files $uri /index.html;
        }
    }

    server {
        listen 8080;
        server_name _;
        return 200;
        access_log  off;
    }
}