artisan migrate error with docker, laravel sail and postgresql

I am installing laravel sail with jetstream and postgresql. The installation is ok and the laravel container can see the postgresql one. I am showing data from the db in the controller. Until there everything ok. But when I try to install jetstream and do the table migration, it returns:

php artisan migrate:

could not translate host name "mycontainer" to address

    'pgsql' => [
        'driver' => 'pgsql',
        'url' => env('DATABASE_URL'),
        'host' => env('DB_HOST', 'mypgcontainer'),
        'port' => env('DB_PORT', '5432'),
        'database' => env('DB_DATABASE', 'mydb'),
        'username' => env('DB_USERNAME', 'myuser'),
        'password' => env('DB_PASSWORD', 'mypass'),
        'charset' => 'utf8',
        'prefix' => '',
        'prefix_indexes' => true,
        'schema' => 'public',
        'sslmode' => 'prefer',
    ],

It also doesn't work with DB_HOST 127.0.0.1 or localhost, because in that case laravel no longer connects with postgresql

SQLSTATE[08006] [7] could not connect to server: Connection refused Is the server running on host "127.0.0.1"

The strange thing is that I can successfully connect from laravel to postgre and display data on screen with db_host 'mypgcontainer', but the migration with artisan return error

Any idea? Thanks!!