How to add additional search domains and nameserver parameters in OCP deployed on top of Red Hat Enterprise Linux 7.x?

Solution Verified - Updated -

Issue

  • How do one add DNS search domains in addition to cluster.local for OpenShift Container Platform 3.11 deployed on top of Red Hat Enterprise Linux 7.x ?
  • The additional search domains manually added to the file /etc/resolv.conf get missing whenever a new image is deployed.
  • The file /etc/resolv.conf continues to get overwritten in OpenShift cluster nodes when a new image is deployed.
  • How to add an additional nameserver value to /etc/resolv.conf file?

Environment

  • Red Hat OpenShift Container Platform
    • 3.11
  • Red Hat Enterprise Linux 7.x

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content