Flomesh Service Mesh
Ranked in Service Mesh Platforms ·Free plan
About
Flomesh Service Mesh (FSM) provides traffic management and service governance for microservices running on Kubernetes. It uses the Flomesh Pipy proxy, automatically injecting it as a sidecar into onboarded applications. FSM supports traffic shifting, ingress and egress, and Kubernetes Gateway API capabilities, as well as HTTP, TCP, gRPC, and MQTT traffic. For service-to-service security, it enables mutual TLS and fine-grained access policies. Certificate management can use Tresor, cert-manager, or HashiCorp Vault. Prometheus and Grafana integrations are listed as stable, while Jaeger distributed tracing is beta. Integration guides also cover Dapr and service discovery through Consul, Eureka, and Nacos. FSM supports x86 and ARM architectures and multi-cluster Kubernetes connectivity using the MCS API, though multicluster is marked alpha. It is open source and free, with self-hosted deployment. Installation requires Kubernetes 1.19 or later; version 1.1 is listed for Kubernetes 1.19 through 1.24.
Who it is for
FSM suits teams running Kubernetes microservices that need traffic controls, mTLS, or service governance. Its documented integrations and self-hosted deployment may fit stacks using Prometheus, Grafana, or established discovery registries.
What is good
- Automatically injects the Pipy proxy as a sidecar
- Supports HTTP, TCP, gRPC, and MQTT
- Enables mTLS and fine-grained service access policies
- Certificate options include cert-manager and HashiCorp Vault
- Supports x86 and ARM architectures
What to know first
- Requires Kubernetes 1.19 or later
- Jaeger distributed tracing is beta
- Multicluster is marked alpha
- ReferenceGrant is not supported
Verdict
FSM combines traffic management, service security, and multiple certificate options for Kubernetes workloads. Check its Kubernetes version range and the lifecycle status of multicluster and tracing features against your requirements.
Compared on service mesh platforms
- Deployment model
- self_hostedflomesh.io
- Proxy architecture
- sidecarflomesh.io
- mTLS support
- Yesflomesh.io
- Traffic policies
- Yesflomesh.io
- Multi-cluster support
- Yesflomesh.io
- Supported platforms
- Kubernetes, OpenShiftflomesh.io
Facts
- Purpose
- FSM provides traffic management and service governance for microservices running on Kubernetes.fsm-docs.flomesh.io · 3 Oct 2026
- Proxy
- FSM uses the Flomesh Pipy proxy and automatically injects it as a sidecar into onboarded applications.fsm-docs.flomesh.io · 3 Oct 2026
- Traffic management
- FSM supports traffic shifting, ingress and egress, and Kubernetes Gateway API capabilities.fsm-docs.flomesh.io · 3 Oct 2026
- Security
- FSM enables mutual TLS for service-to-service communication and fine-grained service access policies.fsm-docs.flomesh.io · 3 Oct 2026
- Certificates
- FSM supports certificate management through its Tresor implementation, cert-manager, and HashiCorp Vault.fsm-docs.flomesh.io · 3 Oct 2026
- Observability
- The documentation lists Prometheus and Grafana integrations as stable and distributed tracing with Jaeger as beta.fsm-docs.flomesh.io · 3 Oct 2026
- Other integrations
- Integration guides cover Dapr, Prometheus, and microservice discovery, including Consul, Eureka, and Nacos registries.fsm-docs.flomesh.io · 3 Oct 2026
- Protocols
- FSM documents support for HTTP, TCP, gRPC, and MQTT traffic protocols.fsm-docs.flomesh.io · 3 Oct 2026
- Architectures
- The product documentation says FSM supports x86 and ARM architectures.fsm-docs.flomesh.io · 3 Oct 2026
- Multi-cluster
- FSM supports multi-cluster Kubernetes service connectivity using the MCS API, while its feature lifecycle page marks multicluster as alpha.fsm-docs.flomesh.io · 3 Oct 2026
- Kubernetes requirement
- The installation guide requires Kubernetes 1.19 or later and lists version 1.1 support for Kubernetes 1.19 through 1.24.fsm-docs.flomesh.io · 3 Oct 2026
- Gateway API limitation
- The compatibility guide says ReferenceGrant is not supported and several Gateway API resources are only partially supported.fsm-docs.flomesh.io · 3 Oct 2026
- CLI platforms
- The setup guide provides FSM CLI downloads for GNU/Linux and macOS.fsm-docs.flomesh.io · 3 Oct 2026
- Security configuration note
- The application prerequisites guide says FSM's init container runs as root and adds the NET_ADMIN capability.release-v1-1.fsm-docs.flomesh.io · 3 Oct 2026
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Where it ranks on Inferse
Sources
- fsm-docs.flomesh.io/overview/about/· checked 3 Oct 2026
- fsm-docs.flomesh.io/releases/feature_lifecycle/· checked 3 Oct 2026
- fsm-docs.flomesh.io/guides/integrations/microservice_discov· checked 3 Oct 2026
- fsm-docs.flomesh.io/guides/operating/install/· checked 3 Oct 2026
- fsm-docs.flomesh.io/overview/gateway/· checked 3 Oct 2026
- fsm-docs.flomesh.io/getting_started/setup_fsm/· checked 3 Oct 2026
- release-v1-1.fsm-docs.flomesh.io/guides/app_onboarding/prereqs/· checked 3 Oct 2026