NoCM/premortemTheMonolithAWSisdownN+1MissingmetricsMissingalarmsToo manydependenciesAlarmfatigueEverchangingsvccontractsAvailabilitywasn't apriority1+1=3NoRetriesTimeouts?!Free!HumanErrScaling?Networkscan fail?ToomanyretriesMissingtestsNoCM/premortemTheMonolithAWSisdownN+1MissingmetricsMissingalarmsToo manydependenciesAlarmfatigueEverchangingsvccontractsAvailabilitywasn't apriority1+1=3NoRetriesTimeouts?!Free!HumanErrScaling?Networkscan fail?ToomanyretriesMissingtests

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