How to override dnsconfig in kubernetes deployment kind

user_6790948 0
Viewed 2020

I'm trying to override dnsconfig (searchdomain particularly) of my alpine based pod.

But it seems dnsconfig is available in pod object.

Is there anyway to provide dnsconfig in deployment object or any other workaround to override searchdomain of that particular pod.

coredns alpine-linux kubernetes docker dns
1 Answers

You can specify the dnsConfig inside spec.template object.

This is basically a template for your Deployment which will be used to create pods.

Deployment might look like the following:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.17
        ports:
        - containerPort: 80
      dnsPolicy: "None"
      dnsConfig:
        nameservers:
          - 1.2.3.4
        searches:
          - test.test.com
          - test.test.org
user_31563330
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