Service Mesh ¶

Overview ¶

Ultra light, ultra simple, ultra powerful. Linkerd adds security, observability, and reliability to Kubernetes, without the complexity. CNCF-hosted and 100% open source.

How it works ¶

How Linkerd works

Linkerd works by installing a set of ultralight, transparent proxies next to each service instance. These proxies automatically handle all traffic to and from the service. Because they’re transparent, these proxies act as highly instrumented out-of-process network stacks, sending telemetry to, and receiving control signals from, the control plane. This design allows Linkerd to measure and manipulate traffic to and from your service without introducing excessive latency.

Architecture ¶

leverage-k8s-networking

Figure: Figure: Linkerd v2.10 architecture diagram. (Source: Linkerd official documentation, "High level Linkerd control plane and a data plane.", Linkerd Doc, accessed June 14th 2021).

Dashboard ¶

leverage-k8s-networking

Figure: Figure: Linkerd v2.10 dashboard. (Source: Linkerd official documentation, "Linkerd dashboard", Linkerd Doc, accessed June 14th 2021).