[rabbitmq] startup is slow. [minikube, skaffold]

[graphicore]

Since we're using skaffold for local development, but also before, it became apparent that starting up all pods is slow. This is because there are many cycles of CrashLoopBackOff for many pods until everyhing is sorted out. The main reason for this is that the rabbitmq pod is starting up slowly (~5 minutes) and many other pods depend on this pod to connect to.

I'll add some improvements to the setup of the rabbitmq pod and to the dependent pods and reference this issue. But ultimately there's still something wrong with the rabbitmq setup to make it start quicker.