configmaps "sshconfigmap" already exists.

[monaka]

Describe the bug

I try to spin up two workspaces on the same wsmaster.
I got an error same as the title of this issue.

Che version

• latest
• nightly
• other: please specify

Steps to reproduce

0. Spin up your workspace.
1. Spin up your another workspace.

Expected behavior

Two workspaces run.

Runtime

• kubernetes (include output of kubectl version)
• Openshift (include output of oc version)
• minikube (include output of minikube version and kubectl version)
• minishift (include output of minishift version and oc version)
• docker-desktop + K8S (include output of docker version and kubectl version)
• other: (please specify)

Client Version: version.Info{Major:"1", Minor:"15", GitVersion:"v1.15.0", GitCommit:"e8462b5b5dc2584fdcd18e6bcfe9f1e4d970a529", GitTreeState:"clean", BuildDate:"2019-06-21T13:09:06Z", GoVersion:"go1.12.6", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.0", GitCommit:"641856db18352033a0d96dbc99153fa3b27298e5", GitTreeState:"clean", BuildDate:"2019-03-25T15:45:25Z", GoVersion:"go1.12.1", Compiler:"gc", Platform:"linux/amd64"}

Screenshots

Installation method

• chectl
• che-operator
• minishift-addon
• I don't know Helm charts customized by me.

Environment

• my computer
  • Windows
  • Linux ChromeOS
  • macOS
• Cloud
  • Amazon
  • Azure
  • GCE
  • other (please specify)
• other: please specify

Additional context

workspace-loader.ts:48 Error: Failed to run the workspace: "Failure executing: POST at: https://camino-wus-2-4c0ff018.hcp.westus2.azmk8s.io/api/v1/namespaces/banco/configmaps. Message: configmaps "sshconfigmap" already exists. Received status: Status(apiVersion=v1, code=409, details=StatusDetails(causes=[], group=null, kind=configmaps, name=sshconfigmap, retryAfterSeconds=null, uid=null, additionalProperties={}), kind=Status, message=configmaps "sshconfigmap" already exists, metadata=ListMeta(_continue=null, resourceVersion=null, selfLink=null, additionalProperties={}), reason=AlreadyExists, status=Failure, additionalProperties={})."
    at workspace-loader.ts:209
    at che-json-rpc-master-api.ts:202
    at json-rpc-client.ts:196
    at Array.forEach (<anonymous>)
    at e.processNotification (json-rpc-client.ts:195)
    at e.processResponse (json-rpc-client.ts:182)
    at json-rpc-client.ts:99
    at websocket-client.ts:121
    at Array.forEach (<anonymous>)
    at e.callHandlers (websocket-client.ts:121)

[sleshchenko]

cc @vparfonov
It's related to #13809

[l0rd]

@slemeur I am tagging it as 7.0.0 because it looks like a blocker