Flomesh Service Mesh
- Android app
- Not listed
- Free plan
- Yes
- Runs on
- Linux, Mac, self-hosted
Summary
Flomesh Service Mesh (FSM) is an open-source service mesh for traffic management and service governance of microservices running on Kubernetes. It uses the Flomesh Pipy proxy, automatically injecting it as a sidecar into applications that are onboarded. FSM supports traffic shifting, ingress and egress, and Kubernetes Gateway API capabilities, as well as HTTP, TCP, gRPC and MQTT traffic. For service security, it enables mutual TLS and fine-grained service access policies. Certificate management can use its Tresor implementation, cert-manager or HashiCorp Vault. Prometheus and Grafana integrations are marked stable in the documentation, while Jaeger distributed tracing is beta. Other integration guides cover Dapr and discovery registries including Consul, Eureka and Nacos. FSM supports x86 and ARM architectures and multi-cluster Kubernetes connectivity through the MCS API, though multicluster is marked alpha. It is self-hosted and free. Installation requires Kubernetes 1.19 or later; listed version 1.1 support covers Kubernetes 1.19 through 1.24.
Who it is for
FSM suits teams running microservices on Kubernetes that need traffic controls, service-to-service security and certificate management. It is aimed at self-hosted deployments and has documented compatibility limits worth checking first.
What is good
- Open-source and free to use.
- Supports HTTP, TCP, gRPC and MQTT traffic.
- Mutual TLS and fine-grained access policies are supported.
- Prometheus and Grafana integrations are stable.
What to know first
- Requires Kubernetes 1.19 or later.
- Jaeger distributed tracing is marked beta.
- Multicluster support is marked alpha.
- ReferenceGrant is unsupported; some Gateway API resources are partial.
Verdict
FSM covers traffic management, service security and several observability and certificate integrations for Kubernetes environments. Check the Kubernetes version requirements and the maturity of multicluster and Gateway API support before adopting it.
Flomesh Service Mesh plans and pricing
All plansCompared 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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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