Kubernetes 101 : Service discovery - kube-dns -
To communicate with the database pods in our diagram below, our "mginxpod" needs to go through the "database-service" service that will forward the request to one of its database pods.
To be able to get the IP address of the "database-service", our pod needs to ask the "kube-dns" service.
Our pods and services:
To be able to see the pods and services in the cluster, we use the below command:
Our DNS service:
We can get inside our pod "nginxpod-hjf3g12g4-hfdvc", and check its DNS server:
We notice that the nameserver points to the "kube-dns" service.
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