Table of Contents

Scenario 01 - Considering microservice replication across multiple locations with replication within each cluster

Diagram

Testing Steps

1. Install ISTIO - Deploy istio control plane in each cluster. (NOTE - For testing use common root CA)
2. Configure DNS - To provide resolution of service from remote clusters, istio uses its own DNS called istiocoredns which provides the resolution of remote istio services

   1. Eg:

      Code Block
      language yml title configmap coredns linenumbers true collapse true
      kind: ConfigMap data: Corefile: | .:53 { errors health kubernetes cluster.local in-addr.arpa ip6.arpa { pods insecure upstream fallthrough in-addr.arpa ip6.arpa } prometheus :9153 proxy . /etc/resolv.conf cache 30 loop reload loadbalance } global:53 { errors cache 30 proxy . 10.43.57.78 }

      
      

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