Deploy PHP app to docker container

1. Make sure you have docker and docker-compose installed.
2. Put your PHP application source code to app directory.
3. Tune ./conf/php.ini if you need.
4. Fill .env with your settings.
5. Ensure your application to use hosts db and cache for mysql and redis connections.
6. Have your application configured to use same credentials as MYSQL_DATABASE, MYSQL_USER, MYSQL_PASSWORD.
7. Run make within docker-php root directory to build and run containers.
8. Read Makefile to know your make shortcuts.

When a container is started for the first time, a new database with the specified name will be created and initialized with the provided configuration variables. Furthermore, it will execute files with extensions .sh, .sql and .sql.gz that are found in /docker-entrypoint-initdb.d. Files will be executed in alphabetical order. You can easily populate your mysql services by mounting a SQL dump into that directory and provide custom images with contributed data. SQL files will be imported by default to the database specified by the MYSQL_DATABASE variable.