Now Docker is available as Docker Datacenter(Docker AWS) and EC2 Container Service. I am planning to host a new application with multiple containers (10+) with high availability (total containers will be 20+). I need to store data with MySQL containers. What approach will be better for this? ECS or Docker Datacenter? Pricing wise, Resource utilization wise.
Docker datacenter license costs $1500 per node per year, and default AWS installation includes at least 6 nodes (3 UCP and 3 DTR), which means in total $9000/yr only for the software.
I would say that for 20 containers you should use ECS and multiAZ autoscaling which is described here:
https://aws.amazon.com/blogs/compute/automatic-scaling-with-amazon-ecs/