*** !!! Work in Progress - it will not digest if consumed :E !!! ****

AIO - Apigee Istio Openshift Demo

This repository includes the instructions and scripts for running and understanding Istio Service Mesh.

Prerequisites

• GCP Free Trial Account
• Apigee Trial Account
• Knowledge on Docker, Microservice Architecture and PaaS platforms

Setting up GCP VM Instance

1. After creating an GCP Account, create a new VM in Compute Engine. I have used this config, n1-highcpu-8 - CentOS7 Compute Engine - 8vCPU, 7GB memory, 100GB storage.
2. By default Openshift's pods-per-core is set to 10. So in my case I could deploy a total of 80 pods.
3. Reserve a Static Internal IP Address and Static External IP Address for the VM Instance.
4. Create a Firewall Rule to allow access to all ports exposed by the VM Instance.
5. Add the above created Rule as a Network tag to VM Instance.

Installing Docker in VM Instance

• We will install Docker and use it to run Openshift PaaS platform as a Docker container.
• Within scripts folder run all the commands in docker-installation.sh

Installing Openshift in VM Instance as a Docker Container

• We will download Openshift Client and use it to run a oc cluster up command to install Openshift.
• Within scripts folder run all the commands in openshift-installation.sh

Setting up Istio + Apigee Adapter in Openshift as a Kubernetes Project

• Within scripts folder go to istio-apigee-installation.sh and edit line 10 to replace your Apigee - organization, environment & credentials.
• We will use Apigee Istio Mixer Adapter to setup Istio in Openshift.
• Run all the commands in istio-apigee-installation.sh
• Wait till all the pods are up and running from istio-system namespace - oc get pods -n istio-system

Deploying the Demo Services

• All the services are deployed using pre-built docker images from siddharth67 Docker repo.
• Within scripts folder run all the commands in deploying-services.sh
• Wait till all the pods are up and running from aio namespace - oc get pods -n aio

Testing the Services

• Run oc get routes -n aio and copy any one of the route and test them in Browser or use a cURL Command,

curl http://movies-aio.xx.xxx.xx.xx.nip.io

Test Istio Service Mesh Features

• Explore demo-commands.sh
• Follow the instructions and test the functionalities.

Check the Telemetry Data

• Run oc get routes -n istio-system
• Check sample images

License

This project is licensed under the MIT License - see the LICENSE.md file for details

Acknowledgments

• All the below docs and demos have helped me to understand and create this project.
• I might have missed few of them, will add them as I remember.
• https://istio.io/
• https://developers.redhat.com
• https://blog.openshift.com/istio-on-openshift/
• http://blog.christianposta.com/istio-workshop/slides/
• https://docs.apigee.com/api-platform/istio-adapter/concepts
• Istio: Canaries and Kubernetes, Microservices and Service Mesh by BurrSutter