“数据库主机数组为空。”在AWS Elastic Beanstalk上部署Laravel项目后

Question

我使用Elastic Beanstalk将项目部署到AWS EC2实例。部署时，我以this tutorial https://www.youtube.com/watch?v=ISVaMijczKc作为参考。我按照教程中的说明进行了所有操作，但最终出现错误。

数据库主机数组为空。 （SQL：从*中选择*resource_categories）

以下是我的代码。

database.php

<?php

define('RDS_HOSTNAME', $_SERVER['RED_HOSTNAME']);
define('RDS_USERNAME', $_SERVER['RED_USERNAME']);
define('RDS_PASSWORD', $_SERVER['RED_PASSWORD']);
define('RDS_DB_NAME', $_SERVER['RED_DB_NAME']);

return [

    'default' => env('DB_CONNECTION', 'mysql'),

    'connections' => [

        'sqlite' => [
            'driver' => 'sqlite',
            'database' => env('DB_DATABASE', database_path('database.sqlite')),
            'prefix' => '',
            'foreign_key_constraints' => env('DB_FOREIGN_KEYS', true),
        ],

        'mysql' => [
            'driver' => 'mysql',
            'host' => RDS_HOSTNAME,
            'port' => env('DB_PORT', '3306'),
            'database' => RDS_DB_NAME,
            'username' => RDS_USERNAME,
            'password' => RDS_PASSWORD,
            'unix_socket' => env('DB_SOCKET', ''),
            'charset' => 'utf8',
            'collation' => 'utf8_unicode_ci',
            'prefix' => '',
            'prefix_indexes' => true,
            'strict' => false,
            'engine' => null,
            'options' => extension_loaded('pdo_mysql') ? array_filter([
                PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
            ]) : [],
        ],

        'pgsql' => [
            'driver' => 'pgsql',
            'host' => env('DB_HOST', '127.0.0.1'),
            'port' => env('DB_PORT', '5432'),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'charset' => 'utf8',
            'prefix' => '',
            'prefix_indexes' => true,
            'schema' => 'public',
            'sslmode' => 'prefer',
        ],

        'sqlsrv' => [
            'driver' => 'sqlsrv',
            'host' => env('DB_HOST', 'localhost'),
            'port' => env('DB_PORT', '1433'),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'charset' => 'utf8',
            'prefix' => '',
            'prefix_indexes' => true,
        ],
    ],

    'migrations' => 'migrations',

    'redis' => [

        'client' => env('REDIS_CLIENT', 'predis'),

        'options' => [
            'cluster' => env('REDIS_CLUSTER', 'predis'),
        ],

        'default' => [
            'host' => env('REDIS_HOST', '127.0.0.1'),
            'password' => env('REDIS_PASSWORD', null),
            'port' => env('REDIS_PORT', 6379),
            'database' => env('REDIS_DB', 0),
        ],

        'cache' => [
            'host' => env('REDIS_HOST', '127.0.0.1'),
            'password' => env('REDIS_PASSWORD', null),
            'port' => env('REDIS_PORT', 6379),
            'database' => env('REDIS_CACHE_DB', 1),
        ],

    ],

];

。ENV] >>

APP_NAME="MyProject"
APP_ENV=development
APP_KEY=base64:FlVBd61BUEzVx6ACa6OOn3Jrp4z+VRpug+F1K1ZeJOs=
APP_DEBUG=true
APP_URL=http://localhost

LOG_CHANNEL=stack

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=myDB
DB_USERNAME=root
DB_PASSWORD=

我使用Elastic Beanstalk将项目部署到AWS EC2实例。部署时，我使用了本教程https://www.youtube.com/watch?v=ISVaMijczKc作为参考。我一直在关注一切...

Answer 1

This is a bug report which might be related to this problem.总而言之，就是如果ConnectionFactory传递了NULL值，它将（错误地）触发该错误。我怀疑您所有的RDS变量都为空。