Do You Know If Your Service Is Working Properly? A Guide To Being Paranoid.

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@esigler Eric Sigler, Head of DevOps, PagerDuty “Do you know if your service is working properly?”  A Guide To Being Paranoid

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Details changed to protect the innocent.

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@esigler wat? why? tips pitfalls

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@esigler Unit Testing Integration Testing Functional Testing Production Testing “Ad Hoc”

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@esigler Production Environment External Functional Test Suite Specifically:

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@esigler Monitoring Testing ??? New Relic Keynote Dynatrace Jenkins TravisCI CircleCI

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Why bother? @esigler

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@esigler Monoliths SOAs Microservices Serverless services Artisanal hand crafted services etc, etc, etc.

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@esigler Production functional testing becomes a shared resource.

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@esigler Checks & Balances

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@esigler One Two Three Zero

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@esigler

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@esigler

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@esigler What to test for?

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Flaky tests are sVll a thing. @esigler

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@esigler Test failures will involve triage.

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@esigler Consider doing functional testing in production It can buffer your users from Conway’s Law It can speed up your developers Moderation in all things Beware of the usual testing failure modes Have clear agreement on ownership

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“The more they overthink the plumbing, the easier it is to stop up the drain.” @esigler

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@esigler Thank you! Questions?

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@esigler Appendix • https:/ /upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Spectrum.svg/2000px-Spectrum.svg.png • http:/ /haacked.com/images/haacked_com/WindowsLiveWriter/ConwaysLaw_6DF4/organizational_charts_thumb.png • https:/ /upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Linear_regression.svg/2000px-Linear_regression.svg.png