Member-only story
What exactly is Istio?
Istio is an OSS for securely managing microservices and is a member of the CNCF like Kubernetes.
As microservices progressed, Service Mesh became larger and more complex due to requests such as allocating only 20% access to A/B testing and canary releases . Istio has been developed to solve this problem of managing complex service meshes cannot keep up. Key features include authentication and monitoring between services, and flexible load balancing at L7. Currently it only supports Kubernetes, but it seems that it will support other platforms in the future. (Some functions such as key management are compatible with bare metal even in the current 0.2 series)
Also, the Istio components are deployed to the pod as a sidecar for the service, so you don’t have to modify the service code. This has the advantage that the operator can flexibly manage the system without burdening the application developer.
