New creates a new workflow.

ESCanaryFailure indicates one of the canaries failed, stopping the workflow.

ESMaxFailures indicates that the workflow passed the canary phase, but failed at a later phase.

ESPreconditionFailure means no work was done as we failed on a precondition.

ESSuccess means that the workflow has completed successfully.

ESUnknown indicates we haven't reached an end state.

Status is the status of a workflow after it has run.

Workflow represents our rollout Workflow.

EndStates are the final states after a run of a workflow.