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Network Policies control pod-to-pod and pod-to-external traffic at the network level. Radar supports standard Kubernetes NetworkPolicy as well as Cilium’s CiliumNetworkPolicy and CiliumClusterwideNetworkPolicy CRDs, providing visibility into what traffic is allowed, denied, and which workloads are unprotected.

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What Radar Shows

Topology: NetworkPolicy and CiliumNetworkPolicy nodes appear in the topology graph with edges connecting them to the workloads they protect. See at a glance which deployments have network policies applied and which are exposed.
Network Policy Topology
Policy Flow Diagram: Each NetworkPolicy detail drawer includes a visual flow diagram showing ingress and egress rules as a directional graph - sources on the left, targets on the right, with ports and protocols labeled. Quickly understand what a policy allows without reading YAML.
Policy Flow Diagram
Dashboard Coverage Card: The home dashboard includes a Network Policy Coverage card showing total policy count, the percentage of workloads covered by at least one policy, and a count of uncovered workloads. Click through to browse all policies.
Network Policy Coverage Card
Cilium Policy Detail View:
  • Endpoint selector targeting
  • Ingress/egress rules with allow and deny semantics
  • Cilium-specific entity selectors (world, cluster, host)
  • CIDR rules, port/protocol specifications
  • Related workloads with clickable links
CiliumNetworkPolicy Detail
Standard NetworkPolicy Detail View:
  • Pod selector and namespace selector rules
  • Ingress and egress rules with CIDR blocks, ports, and protocols
  • Policy type indicators (Ingress, Egress, or both)
  • Related resources showing protected workloads
Traffic View Integration: When Hubble is available, dropped flows are correlated with the network policies that caused them, showing which policy denied specific traffic in real time.
Traffic Drop Correlation

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Supported Resources

ResourceGroupTopologyDetail ViewAI Summary
NetworkPolicynetworking.k8s.io/v1YesYesYes
CiliumNetworkPolicycilium.io/v2YesYesYes
CiliumClusterwideNetworkPolicycilium.io/v2YesYesYes