Observability in DevOps

on YouTube ↗39m

" summary

Walks through a real serverless build: API Gateway + Lambda + DynamoDB deployed with Serverless/YAML and a CloudWatch dashboard exported into CloudFormation. Defines concrete SLIs (availability, p99 latency, error rate) and an SLO/error‑budget policy — alarm on >3 4xx errors in 5 minutes — and shows an alarm firing (33% 4xx in a test, email notification). Demonstrates metrics lag, uses runtime validation library OTS, measures tail latency (initial ~913ms, p99 ~763ms) and iterates dashboards to remove noise.

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" chapters (18)

1. 0:00Introduction
2. 0:50Overview
3. 3:40DevOps
4. 4:40What is DevOps
5. 5:47Site Reliability
6. 7:55Observability
7. 9:53Why is it important
8. 12:25Golden Signals
9. 14:57Sample Project
10. 16:44API Gate
11. 16:58Latency
12. 18:05Code Base
13. 25:51Service Level Indicator
14. 27:29Measuring Service Level Indicator
15. 29:58CloudWatch
16. 32:42Error Budget Policy
17. 35:38Takeaways for SR Engineers
18. 37:02Takeaways for Product Owners

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