環境構築からデータ作成まで！Rails x MySQLのDocker Compose環境構築手順 | Enjoy IT Life
![php - SQLSTATE[HY000] [2005] Unknown MySQL server host ' ' (2) in Laravel - Stack Overflow](https://i.stack.imgur.com/JnTRA.png "php - SQLSTATE[HY000] [2005] Unknown MySQL server host ' ' (2) in Laravel - Stack Overflow")
php - SQLSTATE[HY000] [2005] Unknown MySQL server host ' ' (2) in Laravel - Stack Overflow
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環境構築からデータ作成まで！Rails x MySQLのDocker Compose環境構築手順 | Enjoy IT Life
Cannot connect to MySQL Server, Firewall port 3306 opened, IP address added and get: ERROR 2005 (HY000): Unknown MySQL server host
環境構築からデータ作成まで！Rails x MySQLのDocker Compose環境構築手順 | Enjoy IT Life
MySQL】Unknown MySQL server host 'db' (-2)の対処法【Docker】 - Qiita
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