Add backup and restore functionality as discussed in Cloud Seminar #15 2023

[sahil-sagwekar2652]

New compose file docker-compose.yml-cron-backup added.

To test the changes -

• copy the contents of docker-compose.yml-cron-backup to docker-compose.yml
• run docker compose up
• go to the wp site, install wp and create a blog post.
• now run the following command docker exec -it <db-container-name> /usr/local/bin/backup.sh
• bring down the containers docker compose down
• sudo rm -rf wp-content
• now run the following command docker exec -it <db-container-name> /usr/local/bin/restore.sh
• now when you go to the wp page you will see that the data has been restored.

Further -

• find a way to run restore.sh everytime the container starts.

[lvnilesh]

Back up three things:

1. Files in WP content
2. Any custom config
3. DB data