AWS App Mesh vs Buoyant Enterprise for Linkerd

AWS App Mesh is a managed service for visibility and traffic control between services. It uses the open source Envoy proxy to handle traffic into and out of service containers, and can change routes between services without application-code changes. Proxies balance client traffic and adjust endpoints using health checks and service registration. App Mesh provides metrics and logs for service hops, and can collect traces to help visualize service API calls. It works with AWS Fargate, Amazon ECS, Amazon EKS, Amazon EC2 and Kubernetes on EC2. Mutual TLS verifies service identities using certificates from AWS Certificate Manager Private Certificate Authority or a customer-managed certificate authority. Listed integrations include Amazon CloudWatch and AWS X-Ray, plus tools such as Datadog, HashiCorp and Sysdig. There is no additional charge for App Mesh itself, but proxy-consumed AWS resources are billed separately. AWS states support ends on September 30, 2026; after that, the console and App Mesh resources will no longer be accessible. API clients must support TLS 1.2; AWS recommends TLS 1.3.

Buoyant Enterprise for Linkerd (BEL) is Buoyant’s enterprise distribution of Linkerd, a service mesh for Kubernetes. It encrypts meshed traffic with mutual TLS and offers latency-based load balancing, timeouts, retries, circuit breaking, gRPC load balancing and blue-green or canary deployments. It supports communication across clusters, federated services and automatic cross-cluster failover. Observability includes layer 7 success-rate and latency metrics, Prometheus-compatible metric exports and OpenTelemetry tracing. High Availability Zone-aware Load Balancing keeps requests in-zone under normal load and sends them to other zones when local endpoints are overloaded or return errors. Supported environments include Kubernetes and managed or self-hosted distributions such as Amazon EKS, Google GKE, Microsoft Azure AKS, Oracle OKE, Rancher RKE2 and Red Hat OpenShift. Linux VM workloads are supported in Premium and Strategic; the product also describes management of non-Kubernetes workloads including Windows VMs. It is free to try, and companies with fewer than 50 employees can use it in production at any scale. Premium and Strategic pricing is available by request.