AWS Elastic Beanstalk deployment scripts with: - using Memcached directly from Nginx; - advanced logging info like redirect to url and response time; - redirect to https

00_nginx.config

files:
  "/tmp/deployment/nginx.conf":
    owner: root
    group: root
    mode: "000644"
    content: |
      user  nginx;
      load_module /usr/lib64/nginx/modules/ngx_http_perl_module.so;
      worker_processes  auto;

      error_log  /var/log/nginx/error.log;

      pid        /var/run/nginx.pid;


      events {
          worker_connections  1024;
      }

      http {

        perl_set $mkey '
          sub {
            my $r = shift;
            # fetch current locale
            my $header = $r->header_in("Accept-Language") . ",";
            my $locale = substr(substr($header, 0, index($header, ",")), 0, 2);

            if ( $locale ne "en") { $locale = "de"; }
            my $key = $locale . ":" . $r->uri;
            return $key;
          }
        ';

        port_in_redirect off;
        include       /etc/nginx/mime.types;
        default_type  application/octet-stream;

        log_format  custom '$remote_addr - $remote_user [$time_local] "$request" '
                           '$status $body_bytes_sent "$http_referer" '
                           '"$http_user_agent" "$http_x_forwarded_for" "$upstream_http_location" $upstream_response_time';

        log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                          '$status $body_bytes_sent "$http_referer" '
                          '"$http_user_agent" "$http_x_forwarded_for"';

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

        sendfile        on;
        keepalive_timeout  65;

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

        include /etc/nginx/conf.d/*.conf;
        # End Modification

      }

  "/tmp/deployment/vhost.conf":
    owner: root
    group: root
    mode: "000644"
    content: |
      upstream nodejs {
        server 127.0.0.1:8081;
        keepalive 256;
      }

      server {
        listen 8080;
        set $needRedir 0;
        if ($http_x_forwarded_proto = "http") { set $needRedir 1; }
        if ($needRedir) { return 301 https://$host$request_uri; }

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


        location / {
          set $memcached_key $mkey;
          memcached_pass <memcache-host>:11211;
          error_page 404 = @dynamic_request;
          charset utf-8;
          default_type text/html;
        }

        location @dynamic_request {
          proxy_pass  http://nodejs;
          proxy_set_header   Connection "";
          proxy_http_version 1.1;
          proxy_set_header        Host            $host;
          proxy_set_header        X-Real-IP       $remote_addr;
          proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
          proxy_buffer_size   16k;
          proxy_buffers   8 16k;
          proxy_busy_buffers_size   32k;
        }

          gzip on;
          gzip_comp_level 4;
          gzip_types text/html text/plain text/css application/json application/x-javascript application/javascript text/javascript text/xml application/xml application/xml+rss image/svg+xml font/x-woff font/woff2;

          location /static {
          alias /var/app/current/static;
            expires      30d;
            add_header   Pragma public;
            add_header   Cache-Control "public";
          }

      }

  "/opt/elasticbeanstalk/hooks/appdeploy/pre/60config_generate.sh":
    owner: root
    group: root
    mode: "000755"
    content: |
      #!/usr/bin/env bash
      set -xe
      # first generate the configs from ELB
      /opt/elasticbeanstalk/containerfiles/ebnode.py --action generate-config
      # copy main nginx file
      cp /tmp/deployment/nginx.conf /tmp/deployment/config/#etc#nginx#nginx.conf
      # copy vhost file
      cp /tmp/deployment/vhost.conf /tmp/deployment/config/#etc#nginx#conf.d#00_elastic_beanstalk_proxy.conf


  "/etc/nginx/conf.d/proxy.conf":
    mode: "000644"
    owner: root
    group: root
    content: |
      client_body_timeout 12;
      client_header_timeout 12;
      send_timeout 10;

container_commands:
  00_replace_memcache_host:
    command: "/bin/sed -i \"s/<memcache-host>/$CACHE_MEMCACHED_HOST/\" /tmp/deployment/config/#etc#nginx#conf.d#00_elastic_beanstalk_proxy.conf"