EverchangingsvccontractsToomanyretriesToo manydependenciesNoCM/premortemAvailabilitywasn't apriorityN+1MissingmetricsFree!MissingtestsNetworkscan fail?HumanErrTheMonolithScaling?AlarmfatigueMissingalarmsAWSisdown1+1=3NoRetriesTimeouts?!EverchangingsvccontractsToomanyretriesToo manydependenciesNoCM/premortemAvailabilitywasn't apriorityN+1MissingmetricsFree!MissingtestsNetworkscan fail?HumanErrTheMonolithScaling?AlarmfatigueMissingalarmsAWSisdown1+1=3NoRetriesTimeouts?!

Operational Excellence - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. Ever changing svc contracts
  2. Too many retries
  3. Too many dependencies
  4. No CM/premortem
  5. Availability wasn't a priority
  6. N+1
  7. Missing metrics
  8. Free!
  9. Missing tests
  10. Networks can fail?
  11. Human Err
  12. The Monolith
  13. Scaling?
  14. Alarm fatigue
  15. Missing alarms
  16. AWS is down
  17. 1+1=3
  18. No Retries
  19. Timeouts?!