Deployment Controller

Microservice for:

1. Getting cookie values based off a config file based off canary weighting
2. Disabling/enabling views on the client

Usage

Add an app to deployment-controller.yaml. Specify the percent of traffic you want to receive the ifSuccessful cookie vs. the ifFail cookie.

For example,

- appName: jupyterhub
  expiration: 48h
  percent: .90
  ifSuccessful: # less than percent
    key: a
    value: a
  ifFail:
    key: b
    value: b

The above configuration states that for 90% of PUTs to / with {"app": "jupyterhub"} will return {"Key": "a", "Value": "a", Expiration: <48 hours from now>}. For the 10% case, the server will return {"Key": "b", "Value": "b", Expiration: <48 hours from now>}.

Note config is hot loaded every time / is called, so modifying the config will load all new changes upon the next request.