Operability and You Build It You Run It
summary
Claim: moving from monthly monolith releases to a Google Cloud–based John Lewis Digital Platform yields over 5,000 deployments a year, provisioning new services in one day and reducing time-to-first-live from ~90 days to under a week for some services. Alerts flow via PagerDuty ↔ ServiceNow integration from New Relic/Prometheus, shrinking acknowledge time from 5–20 minutes to ~60 seconds and cutting median restore time for digital services to ~27–44 minutes. Practices include You Build It You Run It and regular chaos days and live load tests.
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chapters (19)
- 0:00Introduction
- 1:30History of John Lewis
- 3:35Retail challenges
- 4:15Virtual services
- 4:47Online sales
- 6:08Speed to market
- 7:59Timeline
- 8:09Key Points
- 11:40Four Main Areas
- 12:30Availability Levels
- 15:30Instant Notification Workflow
- 19:08Digital Services
- 23:23Leading Indicators
- 25:44Trading Indicators
- 26:26Chaos Tests
- 31:37Professional Development
- 32:00Outcomes
- 38:17Speed Agility
- 40:00Challenges
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