1 つの nginx サーバーから 2 つの Rails アプリケーションを提供する

Question

この記事に沿って、いくつかのチュートリアルを試してみました: 1 つの nginx で 2 つの異なるアプリケーション サーバーを構成しますか?

しかし、qa_server から qa.example.com を提供し、staging_server から staging2.example.com を提供するという目標は達成できませんでした。以下は、nginx サイト対応ファイルです。

(staging_server) の内容:

upstream puma_staging {
  server unix:/home/jenkins/apps/staging_app/shared/tmp/sockets/staging-app-puma.sock fail_timeout=0;
}

server {
  server_name staging2.example.com;
  listen 80;
  return 301 https://$host$request_uri;
}

server {
  server_name staging2.example.com;
  listen 443 default_server;
  root /home/jenkins/apps/staging_app/current/public;

  try_files $uri/index.html $uri @puma_staging;

  location @puma_staging {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header   X-Forwarded-Proto https;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://puma_staging;
  }

  error_page 500 502 503 504 /500.html;
  client_max_body_size 4G;
  keepalive_timeout 10;
  ssl on;
  ssl_certificate "some cert";
  ssl_certificate_key "some key;
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers 'something here';
}

(qa_server) の内容:

upstream puma_qa {
  server unix:/home/jenkins/apps/qa_app/shared/tmp/sockets/qa-app-puma.sock fail_timeout=0;
}

server {
  server_name qa.example.com;
  listen 80;
  return 301 https://$host$request_uri;
}

### QA START ###

server {
  server_name qa.example.com;
  listen 443;

  root /home/jenkins/apps/qa_app/current/public;

  try_files $uri/index.html $uri @puma_qa;

  location / {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header   X-Forwarded-Proto https;
    proxy_set_header Host $http_host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_redirect off;
    proxy_read_timeout 150s;
    proxy_pass http://puma_qa;
  }

  error_page 500 502 503 504 /500.html;
  client_max_body_size 4G;
  keepalive_timeout 10;
  ssl on;
  ssl_certificate "some cert";
  ssl_certificate_key "some key;
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers 'something here';
}

ステージング サーバーは正常に動作しているようです。ログを末尾に追跡すると、ログ ファイルが次のように移動しているのがわかりますtail -f /home/jenkins/apps/staging_app/current/log/staging.log。

私の qa アプリ (ステージング環境で実行) は正しいログ ファイルに書き込まないので、このように tail してもtail -f /home/jenkins/apps/qa_app/current/log/staging.log何も起こりません。つまり、qa.example.com アプリは機能しますが、どこから提供されているのかわかりません。

nginx の設定を で検証してみましたがnginx -t、すべて問題ないようです。 nginx をデバッグ モードで実行して、次のようにリクエストが正確にどこからルーティング/処理されているかを確認してみましたservice nginx stop && service nginx-debug start。

アクセスログ (/var/log/nginx/access.log) とエラーログ (/var/log/nginx/error.log) を tail していましたが、デバッグログがどのように表示されるのかさえわかりません。

もう1つの情報は、私のホスト名staging2.example.comは私のサーバーのIPを指すAレコードであり、私のqa.example.comはstaging2.example.comを指すCNAMEであるということです。

ここで何か明らかな間違いを犯しましたか? あるいは次に何を試すべきでしょうか?

コメントに従って更新 (nginx -T の出力を追加):

nginx -T
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
# configuration file /etc/nginx/nginx.conf:
user www-data;
worker_processes  2;

error_log  /var/log/nginx/error.log debug;
pid        /var/run/nginx.pid;

events {
  worker_connections  1024;
}

http {

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

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

  sendfile on;
  tcp_nopush on;
  tcp_nodelay on;

  keepalive_timeout  65;

  gzip  on;
  gzip_http_version 1.0;
  gzip_comp_level 2;
  gzip_proxied any;
  gzip_vary off;
  gzip_types text/plain text/css application/x-javascript text/xml application/xml application/rss+xml application/atom+xml text/javascript application/javascript application/json text/mathml;
  gzip_min_length  1000;
  gzip_disable     "MSIE [1-6]\.";

  server_names_hash_bucket_size 64;
  types_hash_max_size 2048;
  types_hash_bucket_size 64;

  include /etc/nginx/conf.d/*.conf;
  include /etc/nginx/sites-enabled/*;
}

# configuration file /etc/nginx/mime.types:

types {
    text/html                                        html htm shtml;
    text/css                                         css;
    text/xml                                         xml;
    image/gif                                        gif;
    image/jpeg                                       jpeg jpg;
    application/javascript                           js;
    application/atom+xml                             atom;
    application/rss+xml                              rss;

    text/mathml                                      mml;
    text/plain                                       txt;
    text/vnd.sun.j2me.app-descriptor                 jad;
    text/vnd.wap.wml                                 wml;
    text/x-component                                 htc;

    image/png                                        png;
    image/svg+xml                                    svg svgz;
    image/tiff                                       tif tiff;
    image/vnd.wap.wbmp                               wbmp;
    image/webp                                       webp;
    image/x-icon                                     ico;
    image/x-jng                                      jng;
    image/x-ms-bmp                                   bmp;

    application/font-woff                            woff;
    application/java-archive                         jar war ear;
    application/json                                 json;
    application/mac-binhex40                         hqx;
    application/msword                               doc;
    application/pdf                                  pdf;
    application/postscript                           ps eps ai;
    application/rtf                                  rtf;
    application/vnd.apple.mpegurl                    m3u8;
    application/vnd.google-earth.kml+xml             kml;
    application/vnd.google-earth.kmz                 kmz;
    application/vnd.ms-excel                         xls;
    application/vnd.ms-fontobject                    eot;
    application/vnd.ms-powerpoint                    ppt;
    application/vnd.oasis.opendocument.graphics      odg;
    application/vnd.oasis.opendocument.presentation  odp;
    application/vnd.oasis.opendocument.spreadsheet   ods;
    application/vnd.oasis.opendocument.text          odt;
    application/vnd.openxmlformats-officedocument.presentationml.presentation
                                                     pptx;
    application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
                                                     xlsx;
    application/vnd.openxmlformats-officedocument.wordprocessingml.document
                                                     docx;
    application/vnd.wap.wmlc                         wmlc;
    application/x-7z-compressed                      7z;
    application/x-cocoa                              cco;
    application/x-java-archive-diff                  jardiff;
    application/x-java-jnlp-file                     jnlp;
    application/x-makeself                           run;
    application/x-perl                               pl pm;
    application/x-pilot                              prc pdb;
    application/x-rar-compressed                     rar;
    application/x-redhat-package-manager             rpm;
    application/x-sea                                sea;
    application/x-shockwave-flash                    swf;
    application/x-stuffit                            sit;
    application/x-tcl                                tcl tk;
    application/x-x509-ca-cert                       der pem crt;
    application/x-xpinstall                          xpi;
    application/xhtml+xml                            xhtml;
    application/xspf+xml                             xspf;
    application/zip                                  zip;

    application/octet-stream                         bin exe dll;
    application/octet-stream                         deb;
    application/octet-stream                         dmg;
    application/octet-stream                         iso img;
    application/octet-stream                         msi msp msm;

    audio/midi                                       mid midi kar;
    audio/mpeg                                       mp3;
    audio/ogg                                        ogg;
    audio/x-m4a                                      m4a;
    audio/x-realaudio                                ra;

    video/3gpp                                       3gpp 3gp;
    video/mp2t                                       ts;
    video/mp4                                        mp4;
    video/mpeg                                       mpeg mpg;
    video/quicktime                                  mov;
    video/webm                                       webm;
    video/x-flv                                      flv;
    video/x-m4v                                      m4v;
    video/x-mng                                      mng;
    video/x-ms-asf                                   asx asf;
    video/x-ms-wmv                                   wmv;
    video/x-msvideo                                  avi;
}

# configuration file /etc/nginx/conf.d/default.conf:
server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;
    #access_log  /var/log/nginx/host.access.log  main;

    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    root           html;
    #    fastcgi_pass   127.0.0.1:9000;
    #    fastcgi_index  index.php;
    #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
    #    include        fastcgi_params;
    #}

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
}

# configuration file /etc/nginx/sites-enabled/qa_server:
upstream puma_qa {
  server unix:/home/jenkins/apps/qa_app/shared/tmp/sockets/qa-app-puma.sock fail_timeout=0;
}

server {
  server_name qa.example.com;
  listen 80;
  return 301 https://$host$request_uri;
}

### QA START ###

server {
  server_name qa.example.com;
  listen 443;

  root /home/jenkins/apps/qa_app/current/public;

  try_files $uri/index.html $uri @puma_qa;

  location / {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header   X-Forwarded-Proto https;
    proxy_set_header Host $http_host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_redirect off;
    proxy_read_timeout 150s;
    proxy_pass http://puma_qa;
  }

  error_page 500 502 503 504 /500.html;
  client_max_body_size 4G;
  keepalive_timeout 10;
  ssl on;
  ssl_certificate "some cert";
  ssl_certificate_key "some key;
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers 'something here';
}

### QA END ###

# configuration file /etc/nginx/sites-enabled/staging_server:
upstream puma_staging {
  server unix:/home/jenkins/apps/staging_app/shared/tmp/sockets/staging-app-puma.sock fail_timeout=0;
}

server {
  server_name staging2.example.com;
  listen 80;
  return 301 https://$host$request_uri;
}

server {
  server_name staging2.example.com;
  listen 443 default_server;
  root /home/jenkins/apps/staging_app/current/public;

  # location ^~ /assets/ {
  #   gzip_static on;
  #   expires max;
  #   add_header Cache-Control public;
  # }

  try_files $uri/index.html $uri @puma_staging;

  location @puma_staging {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header   X-Forwarded-Proto https;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://puma_staging;
  }

  error_page 500 502 503 504 /500.html;
  client_max_body_size 4G;
  keepalive_timeout 10;
  ssl on;
  ssl_certificate "some cert";
  ssl_certificate_key "some key;
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_ciphers 'something here';
}