FreeSWITCH Cluster by K8s
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This document discusses using Kubernetes to deploy a FreeSWITCH cluster on Minikube for local development and testing. It covers creating a FreeSWITCH deployment, exposing it publicly via a service, scaling the deployment to multiple instances, and updating the deployment with zero downtime using rolling updates. The goal is to explore deploying and managing a FreeSWITCH application on Kubernetes.
FreeSWITCH Cluster by K8s
- 1. FreeSWITCH Cluster by Kubernetes Stanley Wu (吳建澄) [email protected] Mar. 3, 2017
- 2. Outline ● Overview ● Create a FreeSWITCH Cluster ● Deploy a FreeSWITCH App ● Explore Your FreeSWITCH App ● Expose Your FreeSWITCH App Publicly ● Scale Your FreeSWITCH App ● Update Your FreeSWITCH App 2
- 3. Overview ● Kubernetes is a production-grade, open-source platform that orchestrates the placement (scheduling) and execution of application containers within and across computer clusters. ● Minikube is a lightweight Kubernetes implementation that creates a VM on your local machine and deploys a simple cluster containing only one node. 3
- 4. Create a FreeSWITCH Cluster Using Minikube to Create a Cluster ● High Availability and Scalability ● FreeSWITCH Cluster Starting Minikube via a single command: $ minikube start Host Machine FreeSWITCH (Minikube) VM Driver Host OS 4
- 5. Deploy a FreeSWITCH App Using kubectl to Create a Deployment ● $ kubectl run freeswitch --image=freeswitch --port=80 5
- 6. Explore Your FreeSWITCH App Viewing Pods and Nodes ● $ kubectl get pod ● $ kubectl get pods --all-namespaces 6
- 7. Expose Your FreeSWITCH App Publicly Using a Service to Expose Your App ● Create service ○ $ kubectl expose deployment freeswitch --type=NodePort ● Open service ○ $ minikube service freeswitch ● Check Deployment ○ $ kubectl get deployment 7
- 8. Scale Your FreeSWITCH App Running Multiple Instances of Your FreeSWITCH App ● kubectl create -f freeswitch.yml ● kubectl scale deployment freeswitch --replicas=4 8
- 9. Update Your FreeSWITCH App Rolling updates allows Deployments to occur with zero downtime by incrementally updating Pods instances with new ones. ├─ Deployment: <name> │ └─ Replica Set: <name>-<rs> │ └─ Pod: <name>-<rs>-<randomString> ● Get replica set ○ $ kubectl get rs ● Check Status ○ $ kubectl rollout status deployment nginx ○ $ kubectl rollout history deployment/nginx 9
- 10. Reference 1. Kubernetes Tutorials (https://kubernetes.io/docs/tutorials/) 2. FreeSWITCH (https://www.freeswitch.org/) 10