The Docker containers will take a minute or two to start up WordPress and MySQL. Afterwards, you can visit your Linode's IP address in your web browser and you ...
Just create a backup of the ${SOURCE_CODE_DIR} and ${MYSQL_DATA_DIR}. It's all of your data, other data is temporary and related to the images and docker.
This guide shows how to use Docker and Docker Compose to host a WordPress website using a LAMP stack configured in Docker and linked with ... What Are Docker and Docker... · Why Use Docker to Run... · Set Up WordPress