Stop exporting level_sources and user_levels via Database Migration Service

[sureshc]

RED team has switched to using Materialized Views that source data from tables imported into Redshift via Zero ETL.

Testing story

code-dot-org $ export AWS_PROFILE=codeorg-admin
code-dot-org $ bundle exec rake stack:data:validate RAILS_ENV=production ADMIN=true

Finished stack:data:environment (less than a minute)
Pending update for stack `DATA-production`:
Remove DMSCronLevelSourcesPii [AWS::DMS::ReplicationTask]
Remove DMSCronUserLevels [AWS::DMS::ReplicationTask]
Finished stack:data:validate (less than a minute)

Deployment notes

code-dot-org $ bundle exec rake stack:data:start RAILS_ENV=production ADMIN=true

Privacy and security

[github-actions]

[WARN: DMS Config Modified] This PR modifies the aws/dms/tasks.yml file. These changes must be deployed manually by @code-dot-org/infrastructure before merging.

[sureshc]

deployed:

code-dot-org $ bundle exec rake stack:data:start RAILS_ENV=production ADMIN=true


Finished stack:data:environment (less than a minute)
Pending update for stack `DATA-production`:
Remove DMSCronLevelSourcesPii [AWS::DMS::ReplicationTask]
Remove DMSCronUserLevels [AWS::DMS::ReplicationTask]
Proceed? [y/n]
y
Stack update requested, waiting for provisioning to complete...
..2026-06-26 22:11:22 UTC- DATA-production [UPDATE_COMPLETE_CLEANUP_IN_PROGRESS]
2026-06-26 22:11:22 UTC- DATA-production [UPDATE_COMPLETE_CLEANUP_IN_PROGRESS]

Stack update complete.