Flannel

The README highlights that Flannel can be deployed with a single kubectl apply command, and it's pre-integrated into distributions like K3s, minimizing setup complexity.

Supports multiple backends such as VXLAN and cloud integrations, allowing adaptation to different infrastructure needs without overhauling core configuration, as detailed in the backends documentation.

Uses the Kubernetes API as a backing store in 'kube subnet manager' mode, eliminating the need for a separate etcd cluster and simplifying cluster management, which is recommended in the deployment guide.

Runs a single binary agent (flanneld) on each host, focusing solely on network transport with minimal resource consumption, aligning with its philosophy of simplicity.