What is target namespace for DWO?

[sleshchenko]

This issue is about collecting inputs we have for choosing target namespace for DWO.

The target namespace we're going to use is openshift-operators. It should be target namespace for DWO, WTO, Che, CRW. The main cause - we don't have enough time to adapt openshift console and WTO to be suitable for any namespace.
In addition:

• since all of the are all-namespaces scoped, UI will support only openshift-operators. If another namespace is needed: OperatorGroup should be precreated in the target namespace, and then it's needed to apply Subscription in that namespace. UI does not work well there;
• it's difficult to find a good common namespace for all of them;
• we need openshift- prefixed namespace if we would like to benefit from openshift monitoring.

P.S. CheCluster CR can be created anywhere as it's used to be.

Drawbacks:

• operator maintainers won't be able to get permissions only to their Operator related objects, like install plan;
• openshift-operators namespace does not have a proper label that can be used for NetworkPolicy, we can reuse scc: anyuid and operators will get network access to user's namespaces;