@gunnargrosch Gunnar Grosch September 26, 2020 Continuous verification for serverless applications AWS Community Day MENA

@gunnargrosch COMMUNITY DAY MENA COMMUNITY DAY MENA Continuous verification for serverless applications

@gunnargrosch COMMUNITY DAY MENA “Testing to ensure that you can meet your availability goals is the only way you can have confidence that you will meet those goals” Reliability Pillar AWS Well-Architected Framework

@gunnargrosch COMMUNITY DAY MENA About me Background in development, operations, and management Organizer of user groups and conferences AWS Serverless Hero Father of three

@gunnargrosch COMMUNITY DAY MENA Verification of applications

@gunnargrosch COMMUNITY DAY MENA Verification of applications Verification is proactive experimentation for verifying system behaviors

@gunnargrosch COMMUNITY DAY MENA Verification of applications Verification tells you why it’s important to explore a set of conditions

@gunnargrosch COMMUNITY DAY MENA Verification of applications Objectives Measures Conditions Verify

@gunnargrosch COMMUNITY DAY MENA Verification of applications Chaos engineering is not about breaking things

@gunnargrosch COMMUNITY DAY MENA Verification of applications Objective: My purchase API should respond in less than 400 ms Measure: 400 ms threshold Condition: 100-200 ms latency injection to function Verify: Pass or fail

@gunnargrosch COMMUNITY DAY MENA Verification of applications Objective: I want 10 items added in cart per second Measure: 10 items added threshold Condition: Block 10 % of calls to DynamoDB through denylist Verify: Pass or fail

@gunnargrosch COMMUNITY DAY MENA Demo

@gunnargrosch COMMUNITY DAY MENA Making verification continuous

@gunnargrosch COMMUNITY DAY MENA Making verification continuous “Chaos engineering should be done regularly” Reliability Pillar AWS Well-Architected Framework

@gunnargrosch COMMUNITY DAY MENA Making verification continuous “Chaos engineering should be done regularly, and be part of your CI/CD cycle” Reliability Pillar AWS Well-Architected Framework

@gunnargrosch COMMUNITY DAY MENA Making verification continuous Continuous Verification (CV)

@gunnargrosch COMMUNITY DAY MENA Making verification continuous

@gunnargrosch COMMUNITY DAY MENA Making verification continuous Objective: My purchase API should respond in less than 400 ms Measure: 400 ms threshold Condition: 100-200 ms latency injection to function Verify: Pass Default deploy

@gunnargrosch COMMUNITY DAY MENA Making verification continuous Objective: My purchase API should respond in less than 400 ms Measure: 400 ms threshold Condition: 100-200 ms latency injection to function Verify: Fail Canary deploy

@gunnargrosch COMMUNITY DAY MENA Making verification continuous Objective: My purchase API should respond in less than 400 ms Measure: 400 ms threshold Condition: 100-200 ms latency injection to function Verify: Pass Feature flag

@gunnargrosch COMMUNITY DAY MENA Demo

@gunnargrosch COMMUNITY DAY MENA Summary Verification tells you why it’s important to explore a set of conditions Testing is the only way you can have confidence that you will your goals Chaos engineering is not about breaking things Chaos engineering should be done regularly It’s a lot of fun!

@gunnargrosch COMMUNITY DAY MENA Do you want more? Follow @serverlesschaos on Twitter Serverless Chaos Demo app: https://demo.serverlesschaos.com Failure-lambda: https://github.com/gunnargrosch/failure-lambda Failure-cloudfunctions: https://github.com/gunnargrosch/failure-cloudfunctions Failure-azurefunctions: https://github.com/gunnargrosch/failure-azurefunctions Chaos-lambda: https://github.com/adhorn/aws-lambda-chaos-injection/ YouTube videos and repositories: https://grosch.se

@gunnargrosch COMMUNITY DAY MENA Thank you! Gunnar Grosch @gunnargrosch