In my last blog, I covered options to access GKE services from external world. In this blog, I will cover service to service communication options within GKE cluster. Specifically, I will cover the following options:
- Cluster IP
- Internal load balancer(ILB)
- Http internal load balancer
- Istio
- Traffic director
In the end, I will also compare these options and suggest matching requirement to a specific option. For each of the options, I will deploy a helloworld service with 2 versions and then have a client access the hello service. The code that includes manifest files for all the options is available in my github project here.
Sreenivas Makam's Blog 