AWSにRailsアプリをnginx, pumaを使いデプロイ (111: Connection refused) while connecting to upstreamのエラー

タイトル通りですが、AWSにRailsアプリをデプロイしようとしております。
ブラウザでipアドレスを開いても、例の「We're sorry, but something went wrong.」の画面になります。
nginxとpumaを使っています。
※以下ワークディレクトリは、railsアプリのルートディレクトリ(/var/www/rails-infra-tutorial)とします

エラーログ

$ cat log/nginx.error.log

2020/02/11 22:21:30 [error] 16797#0: *1 connect() to unix:///var/www/rails-infra-tutorial/tmp/sockets/puma.sock failed (111: Connection refused) while connecting to upstream, client: 106.180.12.68, server: 54.95.hoge.hoge, request: "GET / HTTP/1.1", upstream: "http://unix:///var/www/rails-infra-tutorial/tmp/sockets/puma.sock:/", host: "54.95.hoge.hoge"

nginxの設定ファイル

$ cat /etc/nginx/conf.d/rails-infra-tutorial.conf

error_log  /var/www/rails-infra-tutorial/log/nginx.error.log;
access_log /var/www/rails-infra-tutorial/log/nginx.access.log;

client_max_body_size 2G;
upstream rails-infra-tutorial {
  server unix:///var/www/rails-infra-tutorial/tmp/sockets/puma.sock;
}
server {
  listen 80;
  server_name 54.95.hoge.hoge; # 作成したEC2のIPアドレス,hogeで隠してます
  keepalive_timeout 5;
  root /var/www/rails-infra-tutorial/public;
  try_files $uri/index.html $uri.html $uri @app;
  location @app {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://rails-infra-tutorial;
  }
  error_page 500 502 503 504 /500.html;
  location = /500.html {
      root /var/www/rails-infra-tutorial/public;
  }
}

pumaの設定ファイル

$ cat config/puma.rb

Ruby
1threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
2threads threads_count, threads_count
3
4# Specifies the `port` that Puma will listen on to receive requests; default is 3000.
5#
6# port        ENV.fetch("PORT") { 3000 }
7
8tmp_path = "/var/www/rails-infra-tutorial/tmp"
9bind "unix://#{tmp_path}/sockets/puma.sock"
10
11threads 3, 3
12workers 2
13preload_app!
14
15pidfile "#{tmp_path}/pids/puma.pid"
16environment ENV.fetch("RAILS_ENV") { "production" }
17plugin :tmp_restart

puma起動時の表示

$ bundle exec puma -e production -C config/puma.rb
※実際にデプロイを確認するときは-dをつけ、nginxを再起動してからブラウザでipアドレスを開いています。

[16800] Puma starting in cluster mode...
[16800] * Version 3.12.2 (ruby 2.5.3-p105), codename: Llamas in Pajamas
[16800] * Min threads: 3, max threads: 3
[16800] * Environment: production
[16800] * Process workers: 2
[16800] * Preloading application
[16800] * Listening on unix:///var/www/rails-infra-tutorial/tmp/sockets/puma.sock
[16800] ! WARNING: Detected 1 Thread(s) started in app boot:
[16800] ! #<Thread:0x0000000002e54b90@/home/kumackey/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:299 sleep> - /home/kumackey/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/activerecord-5.2.4.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:301:in `sleep'
[16800] Use Ctrl-C to stop
[16800] - Worker 0 (pid: 16832) booted, phase: 0
[16800] - Worker 1 (pid: 16834) booted, phase: 0

調べたドキュメント等

よろしくお願いします；；

winterboum

2020/02/12 00:40

ls -l /var/www/rails-infra-tutorial/tmp/sockets/puma.sock するとどういう結果が返りますか？

kumackey

2020/02/12 03:51

ありがとうございます。調べました。 $ ls -l /var/www/rails-infra-tutorial/tmp/sockets/puma.sock srwxrwxrwx 1 kumackey kumackey 0 Feb 11 22:23 /var/www/rails-infra-tutorial/tmp/sockets/puma.sock $ ls -ld /var/www/rails-infra-tutorial/tmp/sockets drwxrwxr-x 2 kumackey kumackey 23 Feb 11 22:23 /var/www/rails-infra-tutorial/tmp/sockets $ ls -ld /var/www/rails-infra-tutorial/tmp drwxrwxr-x 5 kumackey kumackey 108 Feb 9 08:09 /var/www/rails-infra-tutorial/tmp $ ls -ld /var/www/rails-infra-tutorial drwxrwxr-x 14 kumackey kumackey 4096 Feb 2 13:36 /var/www/rails-infra-tutorial $ ls -ld /var/www drwxr-xr-x 3 kumackey root 34 Feb 2 13:36 /var/www $ ls -ld /var drwxr-xr-x 20 kumackey root 280 Feb 2 13:35 /var