Installing flask dependencies takes long on aws
After everything has been setup on your instance bake an AMI from the fully ready instance. Use the AMI ID in the autoscaling configuration. That way any instance that is spun-up by the autoscaling group will be ready with all the required software.
I currently have auto-scaling setup so that once my existing instances reach high usage, new nodes are created on which my flask application is deployed and run.
The issue I am having is that deployment takes a while (7minsish) because I have many dependencies in my requirements.txt and it takes a while to stand up a node and install all of them. 
How can I quicken this process?