Uninstall is leaving items behind

[orpiske]

After a lot of help from @astefanutti debugging the issues #2160 and #2161 we identified the cause as being related to the code leaving behind items after uninstall.

Those issues were caused because an outdated CRD was left behind on the cluster even though I have been using both kamel uninstall --all --global and kubectl delete namespace $(NAMESPACE) to cleanup the environment.

In order to properly cleanup the cluster I also had to run:

kubectl delete crd builds.camel.apache.org
kubectl delete crd builds.camel.apache.org
kubectl delete crd kamelets.camel.apache.org
kubectl delete crd kameletbindings.camel.apache.org
kubectl delete clusterrole camel-k:edit

I think it would be good to either:

1. Document the need to remove those items after uninstall or
2. Remove them after uninstall
3. Overwrite them during install if they are present

I believe overwriting them may be a better solution since these items may exist on cluster than have ran older versions of Camel K.

[orpiske]

@astefanutti I am not sure if we should have closed this one. I was looking at my cluster and the uninstall is still leaving things behind:

	kubectl delete crd integrationkits.camel.apache.org
	kubectl delete crd integrationplatforms.camel.apache.org
	kubectl delete crd integrations.camel.apache.org
	kubectl delete crd camelcatalogs.camel.apache.org

[astefanutti]

@orpiske it may be that you have to add the --olm=false option, e.g. kamel uninstall --all --global --olm=false, otherwise it defaults to using OLM, which does not delete CRDs when uninstalling an operator.

[orpiske]

@astefanutti thanks! I will give it a try later this week :)

[orpiske]

@orpiske it may be that you have to add the --olm=false option, e.g. kamel uninstall --all --global --olm=false, otherwise it defaults to using OLM, which does not delete CRDs when uninstalling an operator.

Just wanted to provide a feedback that it did remove the items I mentioned after I used what you suggested. Thanks @astefanutti!