docker初学者です。
Docker+Rails6+Puma+Nginx+MySQLで環境構築を完了させ、これからアプリ開発を始めようとしています。

少しページを作って表示されるか確認したところ、railsの初期ページ（「Yay! You're on Rails!」）のまま更新されずに困っております。

ブラウザでhttp://localhost/にアクセスした結果の画像を添付させていただきます。![イメージ説明](4fcdadb77e451df001e640d1e4b581fc.png)

なお、マウントはdocker-compose.yml内のvolumes:により指定しています。

# docker-compose.yml

version: "3"
services:
  app:
    build:
      context: .
    env_file:
      - ./environments/db.env
    command: bundle exec puma -C config/puma.rb
    volumes:
      - .:/var/www/remote-work-space
      - public-data:/var/www/remote-work-space/public
      - tmp-data:/var/www/remote-work-space/tmp
      - log-data:/var/www/remote-work-space/log
    depends_on:
      - db
  db:
    image: mysql:5.7
    env_file:
      - ./environments/db.env
    volumes:
      - db-data:/var/lib/mysql
  web:
    build:
      context: containers/nginx
    volumes:
      - public-data:/var/www/remote-work-space/public
      - tmp-data:/var/www/remote-work-space/tmp
    ports:
      - 80:80
    depends_on:
      - app
volumes:
  public-data:
  tmp-data:
  log-data:
  db-data:

コンテナの中身を確認した結果

root@edbae24ba02a:/var/www/remote-work-space/app/models# cat tweet.rb

class Tweet < ApplicationRecord
end

root@edbae24ba02a:/var/www/remote-work-space/app/views/tweets# cat index.html.erb

<div class="contents row">
  <% @tweets.each do |tweet| %>
    <div class="content_post" >
      <p><%= tweet.text %></p>
      <span class="name">
        <%= tweet.name %>
      </span>
    </div>
  <% end %>

root@edbae24ba02a:/var/www/remote-work-space/app/controllers# cat tweets_controller.rb

class TweetsController < ApplicationController
  def index
    @tweets = Tweet.all
  end
end

root@edbae24ba02a:/var/www/remote-work-space/config# cat routes.rb

Rails.application.routes.draw do
  get 'tweets/index'
  resources :tweets, only: :index
end

上記の通り、ローカル環境で作ったファイルがコンテナに接続されているのが確認できました。

それにもかかわらず、なぜrailsの初期ページのままの表示になってしまうのでしょうか。
まだまだdockerの勉強が足りていない状況での質問で申し訳ございませんが、
ご教示いただけますと幸いです。
よろしくお願いいたします。

追記

$ docker-compose logsの結果です。

$ docker-compose logs

Attaching to remote-work-space_web_1, remote-work-space_app_1, remote-work-space_db_1
app_1  | Puma starting in single mode...
app_1  | * Puma version: 5.3.2 (ruby 3.0.0-p0) ("Sweetnighter")
app_1  | *  Min threads: 5
app_1  | *  Max threads: 5
app_1  | *  Environment: development
app_1  | *          PID: 1
app_1  | * Listening on http://0.0.0.0:3000
app_1  | * Listening on unix:///var/www/remote-work-space/tmp/sockets/puma.sock
app_1  | Use Ctrl-C to stop
app_1  | Puma starting in single mode...
app_1  | * Puma version: 5.3.2 (ruby 3.0.0-p0) ("Sweetnighter")
app_1  | *  Min threads: 5
app_1  | *  Max threads: 5
app_1  | *  Environment: development
app_1  | *          PID: 1
app_1  | * Listening on http://0.0.0.0:3000
app_1  | * Listening on unix:///var/www/remote-work-space/tmp/sockets/puma.sock
app_1  | Use Ctrl-C to stop
db_1   | 2021-07-03 15:12:14+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 5.7.34-1debian10 started.
db_1   | 2021-07-03 15:12:15+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
db_1   | 2021-07-03 15:12:15+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 5.7.34-1debian10 started.
db_1   | 2021-07-03T15:12:15.378988Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
db_1   | 2021-07-03T15:12:15.380901Z 0 [Note] mysqld (mysqld 5.7.34) starting as process 1 ...
db_1   | 2021-07-03T15:12:15.386624Z 0 [Note] InnoDB: PUNCH HOLE support available
・
・
・
・
・
db_1   | 2021-07-03T15:12:15.546167Z 0 [Note]   - '::' resolves to '::';
db_1   | 2021-07-03T15:12:15.546330Z 0 [Note] Server socket created on IP: '::'.
db_1   | 2021-07-03T15:12:15.557366Z 0 [Warning] Insecure configuration for --pid-file: Location '/var/run/mysqld' in the path is accessible to all OS users. Consider choosing a different directory.
db_1   | 2021-07-03T15:12:15.571221Z 0 [Note] InnoDB: Buffer pool(s) load completed at 210703 15:12:15
db_1   | 2021-07-03T15:12:15.616840Z 0 [Note] Event Scheduler: Loaded 0 events
db_1   | 2021-07-03T15:12:15.617428Z 0 [Note] mysqld: ready for connections.
db_1   | Version: '5.7.34'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  MySQL Community Server (GPL)
db_1   | 2021-07-03T15:48:07.462724Z 6 [Note] Access denied for user 'user'@'localhost' (using password: YES)
・
・
・
・
db_1   | 2021-07-04T04:47:54.370144Z 0 [Note] Shutting down plugin 'binlog'
db_1   | 2021-07-04T04:47:54.388495Z 0 [Note] mysqld: Shutdown complete
db_1   | 
db_1   | 2021-07-04 04:47:57+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 5.7.34-1debian10 started.
db_1   | 2021-07-04 04:47:58+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
db_1   | 2021-07-04 04:47:58+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 5.7.34-1debian10 started.
db_1   | 2021-07-04T04:47:58.614911Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
db_1   | 2021-07-04T04:47:58.617698Z 0 [Note] mysqld (mysqld 5.7.34) starting as process 1 ...
db_1   | 2021-07-04T04:47:58.623720Z 0 [Note] InnoDB: PUNCH HOLE support available
・
・
・
・
db_1   | 2021-07-04T05:40:34.661009Z 0 [Note] InnoDB: Buffer pool(s) load completed at 210704  5:40:34
db_1   | 2021-07-04T05:40:34.665442Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
db_1   | 2021-07-04T05:40:34.665854Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
db_1   | 2021-07-04T05:40:34.666737Z 0 [Warning] CA certificate ca.pem is self signed.
db_1   | 2021-07-04T05:40:34.667167Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
・
・
・
db_1   | 2021-07-04T06:29:28.513531Z 0 [Note] Shutting down plugin 'INNODB_TRX'
db_1   | 2021-07-04T06:29:28.513545Z 0 [Note] Shutting down plugin 'InnoDB'
db_1   | 2021-07-04T06:29:28.513726Z 0 [Note] InnoDB: FTS optimize thread exiting.
・
・
・
・
db_1   | 2021-07-04 06:29:34+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 5.7.34-1debian10 started.
db_1   | 2021-07-04 06:29:35+00:00 [Note] [Entrypoint]: Switching to dedicated user 'mysql'
db_1   | 2021-07-04 06:29:35+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 5.7.34-1debian10 started.
db_1   | 2021-07-04T06:29:36.209276Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
db_1   | 2021-07-04T06:29:36.211587Z 0 [Note] mysqld (mysqld 5.7.34) starting as process 1 ...
db_1   | 2021-07-04T06:29:36.217955Z 0 [Note] InnoDB: PUNCH HOLE support available
・
・
・
・
db_1   | 2021-07-04T06:29:36.417135Z 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool
db_1   | 2021-07-04T06:29:36.417314Z 0 [Note] Plugin 'FEDERATED' is disabled.
db_1   | 2021-07-04T06:29:36.420323Z 0 [Note] InnoDB: Buffer pool(s) load completed at 210704  6:29:36
db_1   | 2021-07-04T06:29:36.441138Z 0 [Note] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
db_1   | 2021-07-04T06:29:36.442357Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
db_1   | 2021-07-04T06:29:36.446992Z 0 [Warning] CA certificate ca.pem is self signed.
db_1   | 2021-07-04T06:29:36.447793Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
db_1   | 2021-07-04T06:29:36.456602Z 0 [Note] Server hostname (bind-address): '*'; port: 3306
db_1   | 2021-07-04T06:29:36.458406Z 0 [Note] IPv6 is available.
db_1   | 2021-07-04T06:29:36.458756Z 0 [Note]   - '::' resolves to '::';
db_1   | 2021-07-04T06:29:36.458803Z 0 [Note] Server socket created on IP: '::'.
db_1   | 2021-07-04T06:29:36.464235Z 0 [Warning] Insecure configuration for --pid-file: Location '/var/run/mysqld' in the path is accessible to all OS users. Consider choosing a different directory.
db_1   | 2021-07-04T06:29:36.576462Z 0 [Note] Event Scheduler: Loaded 0 events
db_1   | 2021-07-04T06:29:36.578205Z 0 [Note] mysqld: ready for connections.
db_1   | Version: '5.7.34'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  MySQL Community Server (GPL)
・
・
・
・
db_1   | 2021-07-04T08:00:29.850835Z 0 [Note] Skipping generation of SSL certificates as certificate files are present in data directory.
db_1   | 2021-07-04T08:00:29.864156Z 0 [Warning] CA certificate ca.pem is self signed.
db_1   | 2021-07-04T08:00:29.864359Z 0 [Note] Skipping generation of RSA key pair as key files are present in data directory.
db_1   | 2021-07-04T08:00:29.871403Z 0 [Note] Server hostname (bind-address): '*'; port: 3306
db_1   | 2021-07-04T08:00:29.871770Z 0 [Note] IPv6 is available.
db_1   | 2021-07-04T08:00:29.871958Z 0 [Note]   - '::' resolves to '::';
db_1   | 2021-07-04T08:00:29.871999Z 0 [Note] Server socket created on IP: '::'.
db_1   | 2021-07-04T08:00:29.883021Z 0 [Warning] Insecure configuration for --pid-file: Location '/var/run/mysqld' in the path is accessible to all OS users. Consider choosing a different directory.
db_1   | 2021-07-04T08:00:30.085056Z 0 [Note] Event Scheduler: Loaded 0 events
db_1   | 2021-07-04T08:00:30.087712Z 0 [Note] mysqld: ready for connections.
db_1   | Version: '5.7.34'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  MySQL Community Server (GPL)

よろしくお願いいたします。