Secret API objects reside in a namespace. They can only be referenced by pods in that same namespace. Basically, you will have to create the secret for every namespace. For more details, see this: Kubernetes Documentation / Concepts / Configuration / Secrets
After much research and tinkering I have finally managed to achieve a solution to this problem. Please accept my apologies for not posting links to the original references – there are many and I wasn’t taking notes – but this one was certainly useful. My solution uses a filtering XMLStreamWriter which applies an empty namespace … Read more