Revert Canary events switch from Spark operator to Skein
Following !996 (merged)
We are reverting to SimpleSkeinOperator instead of SparkSubmitOperator. Because:
- ProduceCanaryEvents expects event_service_config_uri to be an absolute path uri with protocol
- In the context of a Skein container we can rebuild
the absolute path with
$(pwd)
- SparkSubmitOperator puts the spark arguments into simple quotes
- Simple quotes does not allow the substitution of the $(pwd) variable
- Whereas SimpleSkewinOperator does not quote the params and allows the substitution of the $(pwd) variable
Bug: T381073