Network Service Mesh vs Traefik Mesh

Network Service Mesh connects workloads across clusters and clouds through a hybrid, multi-cloud IP service mesh. Each workload can connect independently to zero or more Network Services, regardless of where it runs. The project says it works with an existing CNI without requiring changes to Kubernetes or workloads. Services can provide connectivity, security, and observability at Layer 3 and above, carrying IP or Ethernet payloads.

Clients may be Kubernetes pods, virtual machines, or physical servers. They authenticate independently, currently using SPIFFE IDs, and need authorization to attach. Clients request and close virtual wires over gRPC and can monitor connection status through a streaming call. Endpoint selection offers composition, selective composition, topology awareness, and scale from zero. A service may also provide domain-scoped DNS for connected pods. The architecture describes integration with Istio, Linkerd, Consul, and Kuma. Network Service Mesh is a CNCF sandbox project and is free and open source. Its run guide lists Docker, Go, a Kubernetes cluster, and kubectl as prerequisites; most examples require at least two worker nodes.

Traefik Mesh is a free, open-source service mesh designed for use in Kubernetes. It routes traffic through proxy endpoints on each node and runs the mesh controller in a dedicated pod, without sidecar containers. Existing services remain outside the mesh until they are added through Traefik Mesh service names. Services can be configured with annotations or Service Mesh Interface (SMI) objects, and ACL mode can require authorization between resources using SMI TrafficTarget resources. Traffic controls include retries, circuit breakers, rate limits, and SMI traffic splitting; examples cover HTTP and TCP services. A built-in debugging API is accessed through the controller pod rather than exposed as a service. Installation uses a Helm chart and requires Kubernetes, CoreDNS or KubeDNS, and Helm v3. The compatibility page lists Kubernetes 1.21, 1.22, and 1.23 as its latest supported minor versions, and says general functionality is not guaranteed for older versions. Traefik Mesh does not provide mutual TLS or implement the SMI Traffic Metrics specification. It is self-hosted and listed for Kubernetes.