Scale to zero and scale to one hooks for serverless workloads (can scale to zero)

[justin808]

Great that we scale rails to zero replicas with no traffic and start replica once traffic.

We need hooks to pause or start the other workloads, like sidekiq, pg, redis, Memcached, etc.

Not sure on what best name would be...

[justin808]

@rafaelgomesxyz says we would need to have the gem in the gemfile and cpln. Why?

[justin808]

@rafaelgomesxyz what is your reason here? @iguanus @dzirtusss are we able to easily scale to zero? Can we document this? Do we use this to save on costs for review apps?