Unclear message if service exists

[cheld]

Issue details

Validation message might be confusing

Steps to reproduce

Steps:

1. Open deploy from settings
2. Enter test as app name
3. Deploy
4. Delete test, but not service
5. Open deploy again
6. Enter test as app name

Observed result

Validation error: "Application with this name already exists within namespace default."

However, Zerostate page is shown. So cluster seems to be empty.

Expected result

Unclear, at least message must be improved and documentation

[bryk]

Fix should be easy. We can do this for 1.0. What do you think?

[maciaszczykm]

Working on it.

[maciaszczykm]

I'm thinking about solution for this. The most accurate one seems to be sending more information from backend (at the moment it's whole validation result, for replication controller and service name together). Instead of it we could send both of these information. However, it will require more changes in architecture to display correct message in UI depending on data from backend. I'm not sure if we should complicate it like this.

Second solution is really simple and it's changing validation message. How it should look like? Now it's Application with this name already exists within namespace ?. My proposition is Replication controller or service with this name already exists within namespace ?. What do you think about it? Do you have any other propositions?

[bryk]

The latter sounds good enough :) Can you send a PR? :)

[maciaszczykm]

@bryk Sure.