April 2024 Migration

[amedenblik]

Use the migration document here.

Before migration:

• [ ] Ensure all expected updates are listed in the Migrations section in StreamStats OneNote. Contact the listed contact person if there are any questions.
• [ ] Clean up any test data in the databases so when we update it goes as smoothly as possible.
• [ ] Run:
  • [ ] SS Integration Tests
  • [ ] BatchTester
• [ ] (if needed) Create new release for code (checklist, instructions).

Migration checklist:

• [ ] 1) Turn Off TestWeb
• [ ] 2) Snapshot existing TestWeb
• [ ] 3) Create 2 ProdWeb(a&b)-new EC2 instances from TestWebSnapshot
• [ ] 4) Update config files on prod services
• [ ] 5) Test the ArcGIS desktop licenses on ProdWebA and ProdWebB
• [ ] 6) Turn off shared E: drive
• [ ] 7) Edit Task Scheduler scripts
• [ ] 8) Test the services
• [ ] 9) Point prod load balancer to new prod web machines
• [ ] 10) Reassign Elastic IP addresses from old to new prod web machines
• [ ] 11) Turn on TestWeb
• [ ] 12) (if needed) Update StateServices map service
• [ ] 13) (if needed) Deploy new production code
• [ ] 14) (if needed) Update Databases
• [ ] 15) Run:
  • [ ] SS Integration Tests
  • [ ] BatchTester
• [ ] 16) Post in StreamStats Team about the migration status & provide notes for news item if applicable
• [ ] 17) Once you’ve confirmed the migration has gone well (3 business days later):
  • [ ] Terminate old ProdWebA, ProdWebB machines
  • [ ] Delete their attached data volumes (the 1800GB data drives)

Additional items:

[harper-wavra]

Make sure we have instruction from Chad on the shared drive from one of the production machines to the fastapi machine. See ticket for more information.