Just 2cents worth here..
Learn a little about Moodle backups.. and have a copy of these saved of all your courses on your local machine.
So that if you hose this migration you have copies...
worst case you can start your new cloud stack and then upload these in to it and your good to go..
in theTut they have sent you ..
there is "moodledata/ directory" and "themes/ and modules/" that is on your local stack..
while these might be easy to find.. you will need to know how to find them with the new cloud stack..
So... if you havent already.. learn this..
How Do I Get My SSH Key Or Password?
Also.. you will need to know these
How do I change the maximum upload size for Moodle?
How To Modify The Allowed Limit For Uploaded Files?
And then I would say... you will need to know about creating new directries.. so on this I will send you to the Moodle site where we have had a huge discussion on the merits of using bitnami.. but.. its the first posts that are off interest to you..
Nooby lost in weeds attempting to upload images to repository
Note: Bitnami team that I was swinging the bat for you guys..