exec if you want to run a command in currently running containers.
Usage for "spin exec"
spin exec [OPTIONS] SERVICE COMMAND
Example of running `php artisan migrate` within the `php` container
spin exec php php artisan migrate
The above command runs
php artisan migrate inside of the
php service (this is why "php" is repeated twice).
This will only run on machines that have
spin installed on it. This means if you installed
spin via "composer" or "yarn", this command will not execute.