Define a max spot price bid, keep the instance
If current spot price > max price, choose to stop or terminate, all within 2 minutes time.
Spot block: Block for a specified time frame, one to 6 hours
Spot price varies based on a AZ’s capacity
PS Cancelling spot request won’t terminate instances.
So cancel and terminate the instances to get rid of instances
Spot fleets
= Set of spot instances + optional on demand instances Stops launching fleet, when reaching capacity or max cost
Gives us some extra savings