I created a gist to easy install composer deps. Can be found here: https://gist.github.com/naxmefy/a31832574cf56a3841c452ab60489b4d
just execute
# shell
$ docker run --rm -v $(pwd):/app composer/composer install
# windows cmd
$ docker run --rm -v %cd%:/app composer/composer installDownload this gist into your project folder.
$ docker-compose up -d$ docker-compose exec app php artisan <artisan_command># copy .env
$ cp .env.example .env
# generate key
$ docker-compose exec app php artisan key:generate
# optimize
$ docker-compose exec app php artisan optimize