This operational playbook outlines a structured approach to upgrading ArgoCD from v3.0.6 to v3.2.x in Amazon EKS production environments. It emphasizes a two-hop upgrade strategy to minimize risk, with comprehensive backup and recovery procedures. The guide includes pre-flight checks, namespace isolation for testing, and detailed verification steps to ensure zero downtime. Key considerations such as CRD migrations, RBAC changes, and rollback mechanisms are addressed. For DevOps teams managing ArgoCD at scale, this provides a reliable framework for maintaining cluster health during critical upgrades.
A detailed operational guide for upgrading ArgoCD in EKS clusters, covering backup, recovery, and verification for production safety.