Getting the pod s ip address for the container inside of it

Question

Every container in a pod has its own IP address. I want to know how I can get this IP address from a container inside the pod?

Answer 1

You can make sure that the replication contoller/replica set yaml files add the pod's IP as an env variable by adding the configuration block below:

    env:
    - name: MY_POD_NAME
      valueFrom:
        fieldRef:
          fieldPath: metadata.name
    - name: MY_POD_NAMESPACE
      valueFrom:
        fieldRef:
          fieldPath: metadata.namespace
    - name: MY_POD_IP
      valueFrom:
        fieldRef:
          fieldPath: status.podIP

Apply the new configuration to the Replication Controller or replica set and then check:

echo $MY_POD_IP