Upgrade Your GKE Cluster using Blue-Green Strategy

Transcript

1. Semarang Upgrade Your GKE Cluster using Blue-Green Strategy Ananda Dwi Rahmawati Sr. Cloud Engineer at Btech
2. 1. Student in Software Eng, UGM, Jul 2019 – present 2. Cloud Engineer, Btech, Jul 2019 – present 3. Tech background: System, Networking, IaaS & PaaS Cloud, DevOps, a bit of Programming 4. Bangkit Academy Contributor & #RoadToGDE Mentee 5. Open Source Enthusiast and Communities Member 6. https://linktr.ee/misskecupbung About Me
3. Outline 1. Why do we have to upgrade? 2. How Important is it? 3. Implementation? 4. Challenges?
4. “Making decisions in system design is all about trade-offs, and microservice architectures give us lots of trade-offs to make” ― Sam Newman, Building Microservices: Designing Fine-Grained Systems
5. “When services are loosely coupled, a change to one service should not require a change to another.” ― Sam Newman, Building Microservices: Designing Fine-Grained Systems
6. Why do We have to Upgrade? 1. Security 2. Feature 3. Issue 4. …
7. Source: https://cloud.google.com/kubernetes-engine/docs/release-notes Semarang
9. Implementation 1. Upgrade the control-plane version to the newer version 2. Create a new worker node pool (call it a green pool) with the same version as control plane 3. Drain and cordon nodes in the blue node pool (node pool with the previous version) 4. Migrates the applications to the green pool 5. Delete the blue node pool 6. Test and verify
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14. 1. Integration 2. Adoption 3. Risk Management 4. Tools 5. Cost Challenges
15. References 1. https://cloud.google.com/kubernetes-engine/docs/concept s/cluster-upgrades 2. https://cloud.google.com/kubernetes-engine/docs/how-to/ upgrading-a-cluster 3. https://misskecupbung.wordpress.com/2022/10/06/google- cloud-gke-upgrade-using-blue-green-strategy/
16. Thank you!