Cloud-native Gerrit Code Review
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The Virtual Gerrit Contributors Summit 2021 focused on the transition of Gerrit to a cloud-native platform, outlining its benefits, risks, and a roadmap for implementation. Key discussions included cloud-native computing concepts, the stages of Gerrit's evolution towards cloud integration, potential pitfalls, and real-life applications. The summit emphasized the importance of understanding cloud technologies, maintaining control, and planning for scalability and failures.
Cloud-native Gerrit Code Review
- 1. 0 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 0 Cloud-native Gerrit Luca Milanesio Gerrit Code Review Maintainer
- 2. 1 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 1 About GerritForge Founded in the UK HQ in London with presence in Europe and the USA (GerritForge Inc.) Committed to OpenSource and to Gerrit Code Review since 2009
- 3. 2 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 2 GerritForge’s mission Our 2021 goal is: Cloud-native Gerrit
- 4. 3 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 3 Cloud-native: agenda • What cloud-native means • Roadmap to cloud-native Gerrit • Benefits • Risks • Pitfalls • Demo • Are you going cloud-native? • Q&A
- 5. 4 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 4 Cloud-native: what is that? Cloud native computing is an approach in software development that utilizes cloud computing to "build and run scalable applications in modern, dynamic environments such as public, private, and hybrid clouds". Technologies such as containers, microservices, serverless functions and immutable infrastructure, deployed via declarative code are common elements of this architectural style. Source: https://en.wikipedia.org/wiki/Cloud_native_computing
- 6. 5 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 5 Cloud-native: is that good or bad for Gerrit? Scalability Elasticity Geo-distribution CDN Low-latency Disposable Infra Easier B2B No physical infra Lack of CPU / Mem Limited throughput Host instability Storage is expensive
- 7. 6 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 6 Gerrit Code Review the road to the cloud
- 8. 7 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 7 Stage-0 : componentization 2015
- 9. 8 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 8 Stage-1 : HA and zero-downtime 2016
- 10. 9 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 9 Stage-2 : Gerrit on NoteDb 2018
- 11. 10 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 10 Stage-3 : K8s-Gerrit w/ Gardener (by SAP) 2018
- 12. 11 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 11 Stage-4 : Gerrit multi-site 2019
- 13. 12 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 12 Stage-5 : AWS-Gerrit – immutable and scalable 2020
- 14. 13 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 13 Gerrit Events Stage-6 : Gerrit goes with Serverless integrations 2021 Global ref-db DNS and load balancing Observability & Alerts
- 15. 14 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 14 Cloud-native Gerrit : benefits Business focus 1. Common solutions to common problems DNS Geolocation policies, Load-balancing, Logs collection, Alerts and Monitoring, Elastic scalability 2. Skills availability AWS and Google Cloud knowledge is widespread 3. Company and industry standards X.509 and DNS management, Security and Hardening
- 16. 15 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 15 Cloud-native Gerrit : risks
- 17. 16 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 16 Cloud-native Gerrit : risks Some of the recent Cloud and CDN failures 8 Jun 2021 1 Apr 2021 25 Nov 2020 14 Dec 2020
- 18. 17 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 17 Cloud-native Gerrit : risks Losing control 1. Understand the technologies you use Team upskill, read logs, troubleshoot common problems 2. Multi-cloud Put a DR site on a different cloud, prevent global disaster 3. Allow fallbacks Design for soft-failures and fallbacks of any dependent service
- 19. 18 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 18 Cloud-native Gerrit : pitfalls 1. Cloud is NOT necessarily cheaper than on-prem infrastructure (see https://a16z.com/2021/05/27/cost-of-cloud-paradox-market-cap-cloud-lifecycle-scale-growth-repatriation-optimization/) 2. Do not oversize the instance types Better having *more* smaller and cheaper instances 3. Optimize cache vs. I/O throughput Memory is way cheaper than disk throughput in the Cloud (see EFS pricing at https://aws.amazon.com/efs/pricing/) 4. Use more than one availability zone, *always* Entire availability zones *may* and *do fail* 5. Ban Git/SSH, Gerrit SSH commands, SSH/stream-events SSH is stateful, difficult to trace, redirect, scale-up: *DO NOT USE IT* 6. Use auto-scaling for Gerrit read-only replicas
- 20. 19 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 19 Real-life cloud-native Gerrit multi-site / AWS Gerrit daemon events-broker libModule global-refdb libModule replication plugin pull-replication plugin dynamodb-refdb plugin events-kinesis plugin websession-broker plugin Metrics-reporter-cloudwatch plugin healthcheck plugin
- 21. 20 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 20 Real-life cloud-native Gerrit multi-site / AWS DEMO
- 22. 21 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 21 Gerrit multi-site with GCloud Pub/Sub events DEMO
- 23. 22 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 22 Q&A: are you planning to go cloud-native? Image from: http://cypp.rutgers.edu/ru-voting/political-information/public-opinion-polls/
- 24. 23 Virtual Gerrit Contributors Summit 2021 – On-line GerritForge.com 23 Wants to know more? GerritForge.com/contact