Placements examples

App placements rules in Yunikorn contains Provided Rule, User Name Rule, Fixed Rule, Tag Rule. Every placement example includes a example yaml file and a config yaml file. The sleep pod is described in the example file and the partition is provided in the config yaml file. Before deploying the pods, the configuration field in yunikorn-release/helm/yunikorn/value.yaml should be replaced by the configuration field in the config.yaml.

• Provided Rule
• User Name Rule
• Fixed Rule
• Tag Rule

Provided rule

placementrules:
  - name: provided
    create: true
    parent:
      name: user
      create: true

Application submit request by the user developer, queue in the application on submit: my_special_queue. Result: root.developer.my_special_queue

User name rule

placementrules:
  - name: user
    create: false # The queue won't be created when the queue doesn't exist.

Application submit request by the user finance.test, queue does exist: Result: root.finance_dot_test

Application submit request by the user developer, queue does not exist: Result: failed, next rule executed Solution: The second cases could be submmitted and there are two optional choices.

1. root.developer is added to the queues.
2. The user name rule in the placementrules field could allowed to create the queue which doesn't exist.

Fixed rule

placementrules:
  - name: fixed
    value: last_resort

Application submit request by the user developer, queue in the application on submit: my_special_queue. Result: root.last_resort

Tag rule

placementrules:
  - name: tag
    value: namespace
    create: true

Application submit request for a kubernetes based application in the namespace default by the user developer, queue in the application on submit: my_special_queue. Result: root.default

Application submit request for a kubernetes based application in the namespace testing by the user developer Result: root.testing