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Open platform to connect, manage, and secure microservices, by Google, IBM, and Lyft
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What is Istio?

Istio is an open platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. Istio's control plane provides an abstraction layer over the underlying cluster management platform, such as Kubernetes, Mesos, etc.
Istio is a tool in the Microservices Tools category of a tech stack.
Istio is an open source tool with 32.3K GitHub stars and 6.9K GitHub forks. Here’s a link to Istio's open source repository on GitHub

Who uses Istio?

194 companies reportedly use Istio in their tech stacks, including, Ruangguru, and Groww.

620 developers on StackShare have stated that they use Istio.

Istio Integrations

Docker, Kubernetes, Google Anthos, Ambassador, and Cilium are some of the popular tools that integrate with Istio. Here's a list of all 11 tools that integrate with Istio.
Pros of Istio
Zero code for logging and monitoring
Service Mesh
Great flexibility
Ingress controller
Powerful authorization mechanisms
Full Security
Easy integration with Kubernetes and Docker
Decisions about Istio

Here are some stack decisions, common use cases and reviews by companies and developers who chose Istio in their tech stack.

Shared insights

At my company, we are trying to move away from a monolith into microservices led architecture. We are now stuck with a problem to establish a communication mechanism between microservices. Since, we are planning to use service meshes and something like Dapr/Istio, we are not sure on how to split services between the two. Service meshes offer Traffic Routing or Splitting whereas, Dapr can offer state management and service-service invocation. At the same time both of them provide mLTS, Metrics, Resiliency and tracing. How to choose who should offer what?

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Shared insights

As for the new support of service mesh pattern by Kong, I wonder how does it compare to Istio?

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Istio Alternatives & Comparisons

What are some alternatives to Istio?
linkerd is an out-of-process network stack for microservices. It functions as a transparent RPC proxy, handling everything needed to make inter-service RPC safe and sane--including load-balancing, service discovery, instrumentation, and routing.
Originally built at Lyft, Envoy is a high performance C++ distributed proxy designed for single services and applications, as well as a communication bus and “universal data plane” designed for large microservice “service mesh” architectures.
Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions.
Conduit is a lightweight open source service mesh designed for performance, power, and ease of use when running applications on Kubernetes. Conduit is incredibly fast, lightweight, fundamentally secure, and easy to get started with.
Kong is a scalable, open source API Layer (also known as an API Gateway, or API Middleware). Kong controls layer 4 and 7 traffic and is extended through Plugins, which provide extra functionality and services beyond the core platform.
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Istio's Followers
1360 developers follow Istio to keep up with related blogs and decisions.