A guided journey of Cloud Native

Presented with Cheryl Hung from CNCF at QCon London 2019

The Cloud Native Trail Map provides a path for enterprises to deploy cloud native applications, and the steps they’ll encounter along their journey. However, the needs of each enterprise are rarely the same and these journeys are rarely linear.

We examine the journey that Monzo, a UK based digital bank, have taken over the last four years, the stages they went through as they grew, the challenges they faced at each point, and the technologies and techniques they used to build a cloud native bank.

Transcript

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8. Nov
   2015
   Mar
   2019
   

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9. Nov
   2015
   Mar
   2019
   

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10. Nov
    2015
    Mar
    2019
    

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11. Nov
    2015
    Mar
    2019
    

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12. Nov
    2015
    Mar
    2019
    Fastest growing UK Bank
    1.6M Customers
    

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13. ☁
    ?
    

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14. “construct a highly agile and
    highly available service from
    ephemeral and assumed
    broken components”
    - Adrian Cockcroſt
    

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15. How does Monzo operate?
    - AWS, GCP, and physical data centres
    - Cloud Native technologies:

    Kubernetes, Docker, Calico, Cassandra, Kafka, NSQ,
    Etcd, Prometheus, Jaeger, Envoy, Elasticsearch…
    - Go based micro services

    ⛅
    

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16. Feb
    2015
    Mar
    2019
    1000
    services
    

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17. #
    

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18. $
    

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20. %
    

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21. &
    Starting with a House
    

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27. ☁
    

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28. ⛈
    

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29. ⛅
    

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30. Source Control
    CI system to test & build our apps
    Artisanally hand-crafted servers on AWS EC2
    Monzo (early 2015) &
    

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31. Source Control
    CI system to test & build our apps
    Artisanally hand-crafted servers on AWS EC2
    Go based micro services
    Cassandra as our database?!
    Monzo (early 2015) &
    

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34. (
    Building a Village
    

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42. Network saturation
    due to DB backups
    

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43. Pub/Sub Messaging — NSQ
    Deployment — CI system (Jenkins)
    Orchestration — Mesos & Marathon
    Error Tracking — Sentry
    Metrics — Influx stack

    Distributed locking — etcd
    Monzo (late 2015) (
    

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44. )
    The road to a Town
    

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45. Reliability & Scalability
    

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46. Reliability & Scalability
    

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47. kubernetes
    service service service service service service
    service
    service
    service service
    

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48. kubernetes
    service service service service service service
    service
    service
    service service
    

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49. kubernetes
    service service service service service service
    service
    service
    service service
    

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50. kubernetes
    service service service service service service
    service
    service
    service service
    

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51. Request
    Limit
    

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52. kubernetes
    service Prometheus service service Kafka linkerd
    Kafka
    service
    service etcd calico
    API
    service
    

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53. *
    

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54. Monzo (mid 2016) )
    Focus on reliability and scalability
    Containerisation — Docker
    Orchestration — Kubernetes
    Service mesh — linkerd
    Resilient messaging — Kafka
    

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55. Onwards to a City
    +
    

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57. Monzo (2018) +
    Scalable metrics — Prometheus
    Tracing — Jaeger
    Network Isolation — Calico
    Service Mesh (sidecar) — Envoy
    

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58. What’s next?
    ,
    ✨
    

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60. monzo.com/careers
    

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