Error establishing a database connection

環境Ubuntu 20.04

docker でswarmクラスタでマネージャーノード２台ワーカーノード２台で構成しています。
docker-compose.ymlでWordpressサービスを立ち上げて、プラウザでアクセスしたら以下のエラー発生しました。

最初のYAMLファイルです。

ersion: '3.4' #composeファイルのバージョン
services:
  wrodpress:
    image: wordpress
    ports:
      - 8080:80
    environment:
      WORDPRESS_DB_PASSWORD: samplewp　　#Wordpressで使用するDBのパスワードを指定
    deploy:
      replicas: 2
      placement:
         constraints:
           - node.role == worker
      depends_on:
        - mysql

  mysql:
          image: mysql:5.7
    environment:
      MYSQL_ROOT_PASSWORD: samplewp
    volumes:
      - mysql_Vol:var/lib/mysql
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname == manager1
volumes:
   mysql_vol:

調べたら、 WORDPRESS_DB_HOST:mysqlを記述すれば解決したという記事を発見しそれを元に上のYAMLファイルを修正しました。

 environment:
　 WORDPRESS_DB_HOST: mysql
   WORDPRESS_DB_PASSWORD: samplewp

一度作成したWordpressとDBを削除して
docker stack deploy --compose-file docker-compose.yml wpを実行してプラウザからアクセスしましたが変化がありません。

docker service logs wp_wrodpressコマンドを実行してログを確認しました。

WordPress not found in /var/www/html - copying now...
wp_wrodpress.1.0b2qv88d9qaa@worker1    | Complete! WordPress has been successfully copied to /var/www/html
wp_wrodpress.1.0b2qv88d9qaa@worker1    | No 'wp-config.php' found in /var/www/html, but 'WORDPRESS_...' variables supplied; copying 'wp-config-docker.php' (WORDPRESS_DB_HOST WORDPRESS_DB_PASSWORD)
wp_wrodpress.1.0b2qv88d9qaa@worker1    | AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 10.0.1.25. Set the 'ServerName' directive globally to suppress this message
wp_wrodpress.1.0b2qv88d9qaa@worker1    | AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 10.0.1.25. Set the 'ServerName' directive globally to suppress this message
wp_wrodpress.1.0b2qv88d9qaa@worker1    | [Mon Apr 05 20:17:50.637531 2021] [mpm_prefork:notice] [pid 1] AH00163: Apache/2.4.38 (Debian) PHP/7.4.16 configured -- resuming normal operations
wp_wrodpress.1.0b2qv88d9qaa@worker1    | [Mon Apr 05 20:17:50.638032 2021] [core:notice] [pid 1] AH00094: Command line: 'apache2 -D FOREGROUND'
wp_wrodpress.1.0b2qv88d9qaa@worker1    | 10.0.0.2 - - [05/Apr/2021:20:18:03 +0000] "GET /favicon.ico HTTP/1.1" 500 2834 "http://192.168.99.111:8080/" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:87.0) Gecko/20100101 Firefox/87.0"
wp_wrodpress.2.s636ciu26koj@worker1    | WordPress not found in /var/www/html - copying now...
wp_wrodpress.2.s636ciu26koj@worker1    | Complete! WordPress has been successfully copied to /var/www/html
wp_wrodpress.2.s636ciu26koj@worker1    | No 'wp-config.php' found in /var/www/html, but 'WORDPRESS_...' variables supplied; copying 'wp-config-docker.php' (WORDPRESS_DB_HOST WORDPRESS_DB_PASSWORD)
wp_wrodpress.2.s636ciu26koj@worker1    | AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 10.0.1.26. Set the 'ServerName' directive globally to suppress this message
wp_wrodpress.2.s636ciu26koj@worker1    | AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 10.0.1.26. Set the 'ServerName' directive globally to suppress this message
wp_wrodpress.2.s636ciu26koj@worker1    | [Mon Apr 05 20:17:50.633778 2021] [mpm_prefork:notice] [pid 1] AH00163: Apache/2.4.38 (Debian) PHP/7.4.16 configured -- resuming normal operations
wp_wrodpress.2.s636ciu26koj@worker1    | [Mon Apr 05 20:17:50.634552 2021] [core:notice] [pid 1] AH00094: Command line: 'apache2 -D FOREGROUND'
wp_wrodpress.2.s636ciu26koj@worker1    | 10.0.0.2 - - [05/Apr/2021:20:18:02 +0000] "GET / HTTP/1.1" 500 2834 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:87.0) Gecko/20100101 Firefox/87.0"
wp_wrodpress.2.s636ciu26koj@worker1    | 10.

いろいろ調べて以下のように修正しました。

version: '3.4'
services:
  wrodpress:
    image: wordpress
    ports:
      - 8000:80
    restart: always
    environment:
      WORDPRESS_DB_HOST: mysql
      WORDPRESS_DB_NAME: wordpress
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: samplewp
    deploy:
      replicas: 2
      placement:
         constraints:
           - node.role == worker
    depends_on:
      - mysql

  mysql:
    image: mysql:5.7
    environment:
      MYSQL_ROOT_PASSWORD: wordpress
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWROD: samplewp
    volumes:
      - mysql_vol:/var/lib/mysql
    deploy:
      replicas: 1
      placement:
        constraints:
          - node.hostname == manager1
volumes:
  mysql_vol:
~

しかし、プラウザでは未だ、「Error establishing a database connection」と表示され変わりません。
docker service logs wb_wordpressの実行結果は

aito@saito:~$ docker service logs wp_wrodpress 
wp_wrodpress.1.5tt871tjgpid@worker1    | WordPress not found in /var/www/html - copying now...
wp_wrodpress.1.5tt871tjgpid@worker1    | Complete! WordPress has been successfully copied to /var/www/html
wp_wrodpress.1.5tt871tjgpid@worker1    | No 'wp-config.php' found in /var/www/html, but 'WORDPRESS_...' variables supplied; copying 'wp-config-docker.php' (WORDPRESS_DB_HOST WORDPRESS_DB_NAME WORDPRESS_DB_PASSWORD WORDPRESS_DB_USER)
wp_wrodpress.1.5tt871tjgpid@worker1    | AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 10.0.1.77. Set the 'ServerName' directive globally to suppress this message
wp_wrodpress.1.5tt871tjgpid@worker1    | AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 10.0.1.77. Set the 'ServerName' directive globally to suppress this message
wp_wrodpress.1.5tt871tjgpid@worker1    | [Tue Apr 06 09:59:29.530792 2021] [mpm_prefork:notice] [pid 1] AH00163: Apache/2.4.38 (Debian) PHP/7.4.16 configured -- resuming normal operations
wp_wrodpress.1.5tt871tjgpid@worker1    | [Tue Apr 06 09:59:29.531345 2021] [core:notice] [pid 1] AH00094: Command line: 'apache2 -D FOREGROUND'
wp_wrodpress.2.m9kttpai6f2l@worker1    | WordPress not found in /var/www/html - copying now...
wp_wrodpress.2.m9kttpai6f2l@worker1    | Complete! WordPress has been successfully copied to /var/www/html
wp_wrodpress.2.m9kttpai6f2l@worker1    | No 'wp-config.php' found in /var/www/html, but 'WORDPRESS_...' variables supplied; copying 'wp-config-docker.php' (WORDPRESS_DB_HOST WORDPRESS_DB_NAME WORDPRESS_DB_PASSWORD WORDPRESS_DB_USER)
wp_wrodpress.2.m9kttpai6f2l@worker1    | AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 10.0.1.78. Set the 'ServerName' directive globally to suppress this message
wp_wrodpress.2.m9kttpai6f2l@worker1    | AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 10.0.1.78. Set the 'ServerName' directive globally to suppress this message
wp_wrodpress.2.m9kttpai6f2l@worker1    | [Tue Apr 06 09:59:29.515967 2021] [mpm_prefork:notice] [pid 1] AH00163: Apache/2.4.38 (Debian) PHP/7.4.16 configured -- resuming normal operations
wp_wrodpress.2.m9kttpai6f2l@worker1    | [Tue Apr 06 09:59:29.518052 2021] [core:notice] [pid 1] AH00094: Command line: 'apache2 -D FOREGROUND'

変化はありません。
mysqlのログです。

wp_mysql.1.s6yobt9glaca@manager1    | 2021-04-07 00:00:05+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server 5.7.33-1debian10 started.
wp_mysql.1.s6yobt9glaca@manager1    | 2021-04-07 00:00:05+00:00 [Note] [Entrypoint]: Switching to dedicated user &apos;mysql&apos;
wp_mysql.1.s6yobt9glaca@manager1    | 2021-04-07 00:00:05+00:00 [Note] [Entrypoint]: Entrypoint script for MySQL Server