I found the problem, all solutions above work, the issue comes from database config in config/database.php. I set it:

'production' => [
			'driver'    => 'mysql',
			'host'      => env('DB_HOST', 'pro.cm.com'),
			'database'  => env('DB_DATABASE', 'importer'),
			'username'  => env('DB_USERNAME', 'myacc'),
			'password'  => env('DB_PASSWORD', 'mypass'), 
			'charset'   => 'utf8',
			'collation' => 'utf8_unicode_ci',
			'prefix'    => '',
			'strict'    => false,
]

But it seems does not work with env setting, I remove all env. It become:

'production' => [
			'driver'    => 'mysql',
			'host'      => 'pro.cm.com',
			'database'  => 'importer',
			'username'  => 'myacc',
			'password'  => 'mypass',
			'charset'   => 'utf8',
			'collation' => 'utf8_unicode_ci',
			'prefix'    => '',
			'strict'    => false,
]

Then it works now.