How to Implement a specific /etc/resolv.conf per Openshift project

Personally I think the OpenShift has not been supported configuration of DNS per a project unit. But you can consider the CustomPodDNS feature to configure DNS per Pod unit. So you might configure the Pods to use same DNS config in a project using this feature.

• You can enable the CustomPodDNS feature for OCP cluster, if you configure the following parameters in /etc/origin/master/master-config.yaml.

kubernetesMasterConfig:  apiServerArguments:    feature-gates:    - CustomPodDNS=true  controllerArguments:    feature-gates:    - CustomPodDNS=true

• You can also enable this feature on one node host as configuring it in the /etc/origin/node/node-config.yaml.

kubeletArguments:  feature-gates:  - CustomPodDNS=true

You should restart the related services master and node to take effect the changes.

• The config of Pod, refer Pod's Config for more details.

apiVersion: v1kind: Podmetadata:  namespace: default  name: dns-examplespec:  containers:    - name: test      image: nginx  dnsPolicy: "None"  dnsConfig:    nameservers:      - 1.2.3.4    searches:      - ns1.svc.cluster.local      - my.dns.search.suffix    options:      - name: ndots        value: "2"      - name: edns0