Add imagePullSecrets option to clabverter

[Simon Peccaud]

I didn't find any robust way to have this set in clabverter output.

Code is ready.

[Carl Montanari]

let it rip I think! though will defer to roman as he is the clabverter wrangler for sure! :D

[Roman Dodin]

@SimPeccaud I missed all that PullSecrets talk, what would you need clabverter to set? Can you give me an example of the manifest lines to add?

[Simon Peccaud]

It's about setting this value in Topology: spec.imagePull.pullSecrets[0] = "regcred" when invoking clabverter with --imagePullSecrets="regcred".

regcred is the name of the secret created in clabernetes namespace of type kubernetes.io/dockerconfigjson that holds docker auth info to secure registry.