content_image/981314.jpg
shared inboxes. Easily create a uniquely branded web presence by customizing email templates and logos to match your brand identity. See Figure 5-6. 

<img src='content_image/981314.jpg'>

## 5.9 Service Mesh: Istio 

The IBM Cloud Pak for Integration and Red Hat OpenShift Container Platform provide a Service Mesh based on Istio. At a high level, service mesh can appear to have some overlap points with other integration components. So, we have chosen to briefly describe it here for clarity. See also 4.8, “Service mesh” on page 119, where we discuss its role conceptually and especially in relation to API Management. 

Istio ( https://istio.io ) is one of the most popular technology implementations for a service mesh. Istio is a Kubernetes-compatible open platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. 

From a high-level functionality perspective, Istio allows you to connect, secure, control, and observe your containers as they run on Kubernetes. 

In this section, we go specifically into detail on the Istio service mesh. For more information on the broader architectural role of the Service Mesh, and specifically it is comparative relationship to API management, see 4.8, “Service mesh” on page 119. 

## Connect 

Istio provides traffic management for services. The traffic management function includes: 

GLYPH<SM590000> Intelligent routing : The ability to perform traffic splitting and traffic steering over multiple versions of the service 

