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Making Cloud Native CI_CD Services.pdf

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Making Cloud Native CI_CD Services.pdf

  1. 1. Making Cloud Native CI/CD Services May 19th, 2022 Takizawa Takeshi Cloud Platform Department Rakuten Group, Inc.
  2. 2. 2 About Me Takizawa, Takeshi | Takky Organization Cloud Platform Department (CPD) Application Platform Section: CI/CD Platform Group Apr 2010 – Rakuten Application Engineer Automation Engineer Application Architect Manage One Cloud Services: - CI/CD (Jenkins) - Registry-aaS (Harbor) - 3rd Party Tools: GitHub Enterprise Artifactory CircleCI
  3. 3. 3 CONTENTS 1. What is Cloud Native? 3. How large are our services? 2. Our System Architecture Diagrams4 4. Current issues 5. Future plans
  4. 4. 4 What is Cloud Native? Cloud native technologies empower organizations to build and run scalable applications in modern, dynamic environments such as public, private, and hybrid clouds. Containers, service meshes, microservices, immutable infrastructure, and declarative APIs exemplify this approach. These techniques enable loosely coupled systems that are resilient, manageable, and observable. Combined with robust automation, they allow engineers to make high-impact changes frequently and predictably with minimal toil. https://github.com/cncf/toc/blob/main/DEFINITION.md CI/CD
  5. 5. 5 What is Cloud Native? Cloud native technologies empower organizations to build and run scalable applications in modern, dynamic environments such as public, private, and hybrid clouds. Containers, service meshes, microservices, immutable infrastructure, and declarative APIs exemplify this approach. These techniques enable loosely coupled systems that are resilient, manageable, and observable. Combined with robust automation, they allow engineers to make high-impact changes frequently and predictably with minimal toil. https://github.com/cncf/toc/blob/main/DEFINITION.md Private Cloud => One Cloud Robust automation => Scope of Our Group Run scalable applications => Container Platform Group
  6. 6. 6 System Architecture Diagrams There are multiple Kubernetes clusters in a Region. There is one Jenkins cluster in a Region. There is one Harbor cluster in a Region. JPE2 Region EUC1 Region USW1 Region
  7. 7. 7 System Architecture Diagrams In order to use resource efficiently, each service uses multi-tenant approach. JPE2 Region EUC1 Region USW1 Region
  8. 8. 8 Relationship Between Kubernetes Cluster and CI/CD Tools Jenkins and Harbor are outside Kubernetes cluster.
  9. 9. 9 How Large Are Our Services? (The Largest Region JPE2) DEV env: 350+ nodes, 7,500+ pods PROD env: 900+ nodes, 15,000+ pods 8,400+ jobs 2,000+ builds / day 14,000+ projects 260,000+ images
  10. 10. 10 Current Issue Compared to Kubernetes and Harbor, Jenkins is a legacy tool and is close to its performance limits in its current architecture. • Agent nodes are provisioned statically • Controller node is single point of failure
  11. 11. 11 Solution Dynamically Provision CI/CD tools for each Tenant on Kubernetes.
  12. 12. 12 There are more challenges • Releases must be operated from the corresponding Jenkins, which is inconvenient. • Registry-aaS doesn't have geo-redundancy yet. • Etc., 画像挿入予定
  13. 13. 13 The experience of rearchitecting a CI/CD platform is very rewarding!
  14. 14. 14 Appendix: Flow of new namespace creation

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