I have a daemonset which has a Pod, in that pod I wish to have two containers, a and b. However, I wish to deploy a to all nodes, but b is only needed to nodes satisfying certain selectors.
a and b must be in the same pod. So two daemon sets is not an option.
Is there anyway to achieve this?
It's not possibile to do what you have in mind because the pod is the basic component of Kubernetes and it is not a divisible component, so you cannot deploy the containers in it on different nodes.
Either you deploy the whole pod to all nodes or on nodes satisfying selectors.