Update resources if already exist

[ArthurSens]

While trying out poctl, I'm constantly being forced to delete resources before trying again.

I think it's a better experience if we use a CreateOrUpdate strategy here 😬

What do you think?

[nicolastakashi]

I'd suggest using the With api from slog so we can have it as a log attribute.

logger.With("error", err.Error()).With("serviceAccount", manifests.ServiceAccount.GetName()).Error("error while creating ServiceAccount")

[ArthurSens]

I'm not sure if that's the indented usage for With() 🤔 (slog's With docs)

With() creates a new logger object with the arguments passed as default keys. That's a common pattern used in several logging libraries. An example is how we use logger.With() in prometheus-operator:

• Here we add a default key to the prometheus-controller, so all logs from this controller have component=prometheuscontroller.
• The same thing is done with all other controllers[1][2][3]

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Further reading slog's documentation, I see that adding arguments to methods such as log.Error() or log.Info() will add those arguments as key=values in the logs. This is the behavior I see when running poctl create stack as well

[nicolastakashi]

Got it, lgtm

[nicolastakashi]

I left a minor comment, but general looks good to me.
We can think about using dynamic client later to reduce the amount of methods, since we might and with one createOrUpdateMethod for each resource type.