Add create_user task

atst/models/environment_role.py

@@ -1,5 +1,5 @@
 from enum import Enum
-from sqlalchemy import Index, ForeignKey, Column, String
+from sqlalchemy import Index, ForeignKey, Column, String, TIMESTAMP
 from sqlalchemy.dialects.postgresql import UUID
 from sqlalchemy.orm import relationship
 
@@ -33,6 +33,9 @@ class EnvironmentRole(
 
     job_failures = relationship("EnvironmentRoleJobFailure")
 
+    csp_user_id = Column(String())
+    claimed_until = Column(TIMESTAMP(timezone=True))
+
     def __repr__(self):
         return "<EnvironmentRole(role='{}', user='{}', environment='{}', id='{}')>".format(
             self.role, self.application_role.user_name, self.environment.name, self.id