What is the difference between Argo CD and Flux?

Argo CD and Flux are both GitOps tools that automate application deployment in Kubernetes from a Git repository, but they have some differences:

• Argo CD is a standalone controller with a web interface and CLI that synchronizes the cluster state with the state in Git. It supports visualization of application status, role management, and a richer UI for monitoring and management.

• Flux is a lighter tool focused on automatically applying changes from Git. Flux 2 is based on Kubernetes controllers and closely integrates with the Kubernetes ecosystem, supporting Helm, Kustomize, and other tools.

Main differences:

• Argo CD offers a more advanced user interface and application management capabilities.
• Flux is more integrated with Kubernetes and focused on declarativity and automation without a separate UI (although Flux UI exists).

The choice depends on requirements: if you need convenient visualization and management — Argo CD; if simplicity and tight integration are important — Flux.