Add new registration-service config param for ui canary deployement

config/crd/bases/toolchain.dev.openshift.com_toolchainconfigs.yaml

@@ -235,6 +235,19 @@ spec:
                           use for the registration service deployment
                         format: int32
                         type: integer
+                      uiCanaryDeploymentWeight:
+                        description: |-
+                          UICanaryDeploymentWeight specifies the threshold of users that will be using the new UI.
+                          This configuration option is just a temporary solution for rolling out our new RHDH based UI using canary deployment strategy.
+                          Once we switch all our users to the new UI this will be removed.
+                          How this works:
+                          - backend returns a weight
+                          - old UI assigns a sticky random number for each user
+                          - if the user has a number within the weight returned from the backend than user get's redirect to new UI
+                          - if the user has a number above the weight they keep using the current UI
+                        maximum: 100
+                        minimum: 0
+                        type: integer
                       verification:
                         description: Keeps parameters necessary for the registration
                           service verification config