Add --opencost flag to specify standard OpenCost settings

[mattray]

When using kubectl cost with OpenCost, there are a bunch of boilerplate CLI options you have to add:
--service-port 9003 --service-name opencost --kubecost-namespace opencost --allocation-path /allocation/compute

It would be handy to just pass --opencost and get all of those set by default (while still allowing for being more specific if needed).

[michaelmdresser]

I like this idea. This is a great small change if a community member would like to contribute. Matt's comment about "while still allowing for more [specificity]" is particularly pertinent. This would be the area of code to look at to contribute:

kubectl-cost/pkg/query/options.go

Line 52 in 703f25c

func (o *QueryBackendOptions) Complete(restConfig *rest.Config) error {

cc @kwombach12 apologies for the spam lately, I'm not sure how you'd like to track enhancement requests for this project.

[vladComan0]

Hi guys! I'd like to pick this up if possible.

[mattray]

Go for it!