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Envoy is a high-performance, open source edge and service proxy originally created at Lyft and now maintained within the CNCF ecosystem, designed to manage east–west and north–south traffic in modern distributed systems. It provides Layer 7 traffic management (routing, retries, timeouts, circuit breaking), dynamic service discovery via xDS APIs, and deep observability through metrics, distributed tracing, and access logs, making it a common data plane for service meshes and API gateways. Envoy is frequently deployed alongside Kubernetes and integrates well with service-mesh control planes such as Istio, and it supports extensibility through filters (e.g., JWT authentication, rate limiting) as well as modern protocols like HTTP/2 and gRPC; for more detail on its architecture and configuration model, see the Envoy documentation.
Networking, in the context of computer science and information technology, refers to the practice of connecting computers, servers, mainframes, network devices, peripherals, or other devices to exchange data and share resources. It encompasses both the physical (hardware) and logical (software) aspects of connections between devices. The primary goal of networking is to enable the sharing of data and resources, thereby improving efficiency and accessibility within and across computing environments. Networks can vary in size, ranging from simple local area networks (LANs) connecting a few devices in a single office, to complex wide area networks (WANs) spanning multiple geographic locations around the globe. Networking technologies and protocols facilitate communication and data transfer across these connections, adhering to standardized rules to ensure reliable and secure information exchange.
Envoy is a high-performance L7 proxy commonly used as the data plane for service meshes and modern ingress/egress gateways. It is chosen to standardize traffic management, security, and observability across microservices at scale.
Envoy is often deployed as a sidecar proxy in a service mesh, as a standalone edge proxy, or as part of an API gateway architecture. Operational complexity increases with the number of proxies and policies, so it typically benefits from strong configuration management, versioning, and automated rollout practices.
Common alternatives include Linkerd, NGINX, HAProxy, and Traefik. For deeper service mesh capabilities, Envoy is frequently used under the hood by Istio, while Linkerd uses a different data plane approach.
Our experience with Envoy helped us build practical patterns, runbooks, and automation that we reuse to help clients manage service-to-service traffic reliably as their platforms scale. Across Kubernetes and VM-based environments, we implemented Envoy in ways that improved routing control, resilience, and observability without disrupting delivery timelines.
Some of the things we did include:
This experience helped us accumulate significant knowledge across multiple Envoy use-cases—from edge routing to service mesh data plane operations—and it enables us to deliver high-quality Envoy setups that are maintainable, observable, and safe to operate at scale. For deeper background on Envoy’s core concepts, we often reference the upstream documentation at envoyproxy.io.
Some of the things we can help you do with Envoy include: