Docker checklist for EasyEngine v4

[rahul286]

Plese read this blog post for background/context - https://easyengine.io/blog/how-we-plan-to-use-docker-in-easyengine-v4/.

This is meta issue to track progress. Actual work is being done in - https://github.com/EasyEngine/docker-compose-wordpress/

Notes
Make sure all following tests are carried over DigitalOcean (or equivalent) $5 VPS (512MB RAM).
The site(s) must use public domain/subdomain and always be served on port 80.

Issues to work on

• Running a single website using docker (compose) - Running a single website using docker (compose) docker-compose-wordpress#1
• Running multiple websites using docker (compose) - Running multiple single websites using docker (compose) docker-compose-wordpress#3
• Running WordPress Multisite using docker (compose) - Running WordPress Multisite using docker (compose) docker-compose-wordpress#4
• Test SSL - Test SSL docker-compose-wordpress#5
• Test caching - Test caching docker-compose-wordpress#6
• Config files - Config files docker-compose-wordpress#7
• Log files - Log files docker-compose-wordpress#8
• Common Service container approach? - Common Service container approach docker-compose-wordpress#9
• Postfix/email sending - Postfix/email sending? docker-compose-wordpress#10
• Linux cron (wp-cron disable) - Using Linux cron (wp-cron disable) docker-compose-wordpress#11