Argo CD Install: Helm-Based Setup for Enterprise DevOps Team

Argo CD is a Kubernetes-native continuous delivery controller that adheres to GitOps principles, ensuring that Git serves as the source of truth and continuously reconciles the cluster's running state with the declared state in Git. This guide outlines the installation of Argo CD using a Helm-first approach, emphasizing security, high availability, and multi-team usage, particularly in enterprise settings where it becomes a shared platform infrastructure. Key considerations include using Single Sign-On (SSO), least-privilege Role-Based Access Control (RBAC), and AppProjects for team guardrails. It also details the importance of monitoring, backups, and a staged upgrade process to maintain GitOps reliability at scale, and discusses Helm as the preferred method for enterprise installations due to its ability to pin versions and manage configuration in a repeatable manner. The guide recommends starting with a single shared Argo CD instance and adding more only when necessary, with a focus on maintaining operational maturity through monitoring, alerts, and strategic backups and restorations, thus ensuring that Argo CD remains a reliable shared dependency across various environments and teams.

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