Istio as a Service Mesh
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The document outlines the etiquette and guidelines for attending sessions on Istio, including punctuality, feedback submission, and avoiding disturbances. It introduces Istio as a service mesh that facilitates communication in distributed systems and explains related concepts such as virtual services and destination rules. The presentation also covers deployment patterns like blue-green and canary deployments, ending with a demo and contact information for further inquiries.
![Managing Traffic using Istio
● Performing Deployment Patterns using Istio
○ Blue Green Deployment [All or nothing]
○ Canary Deployment](https://image.slidesharecdn.com/istio-servicemesh-211129070624/85/Istio-as-a-Service-Mesh-14-320.jpg)
Istio as a Service Mesh
- 1. Presented By: Yatharth Sharma Istio - Service Mesh
- 2. Lack of etiquette and manners is a huge turn off. KnolX Etiquettes Punctuality Respect Knolx session timings, you are requested not to join sessions after a 5 minutes threshold post the session start time. Feedback Make sure to submit a constructive feedback for all sessions as it is very helpful for the presenter. Silent Mode Keep your mobile devices in silent mode, feel free to move out of session in case you need to attend an urgent call. Avoid Disturbance Avoid unwanted chit chat during the session.
- 3. Our Agenda 01 K8s Prerequisites 02 Istio Introduction 03 04 Istio Objects 05 Managing Traffic Using Istio Service Mesh Features 06 Demo
- 4. Istio over K8s - Prerequisites What is Kubernetes or K8s ● Minikube ● Resources ○ Pods ○ Namespaces ○ Services in K8s ● Custom Resources ● Labels
- 5. Istio Introduction What is Istio? ● It is a service mesh ○ Communication system between the software components of a distributed system. ○ How to talk each other without making changes to config. ● Architecture Pattern applies to a distributed system. ● Open source project from Google, IBM & Lyft ● Optimal with K8s
- 6. Istio Introduction Distributed Application without Istio ● In order to allow web application to talk to db, there are a couple of things that need to be provided to web app. ○ Address of the database ○ When should it timeout. ○ When and How many times should it retires ○ Communication between them is encrypted
- 7. Istio Introduction Distributed Application with Istio ● Istio will be running over the cluster along with the applications. ● Istio will register the component with itself and that will inject a network proxy. ● All problems discussed above will now be taken care by proxy. ○ Address, Timeout, Retry & Encryption
- 9. Istio Objects: VirtualService ● Uses this for communication & k8s svc only for identifying pods. ● Includes ○ hosts: Host requested by client ○ route: Routing rules for that traffic ○ destination: K8s service to be pointed to
- 10. Istio Objects: VirtualService ● Other use cases for which we can use VirtualService Service Communication Traffic Shaping Timeout Request Retries
- 11. Istio Objects: DestinationRule ● DestinationRule is used to target a subset of the running application. ● Includes: ○ host ○ subset name ○ subset version
- 12. Istio Objects: Gateway ● Gateway is a component used to route External Traffic. It applies the rules over the incoming traffic. ● Includes: ○ hosts
- 13. Workflow
- 14. Managing Traffic using Istio ● Performing Deployment Patterns using Istio ○ Blue Green Deployment [All or nothing] ○ Canary Deployment
- 15. Demo
- 16. Demo1: User Specific Version
- 19. Thank You ! Get in touch with us: yatharth.sharma@knoldus.com