- As the DNS lookup fails, it results in any random communication issue at the OCP level. Like below it has failed while pulling the image.
Error: error pulling image "registry.redhat.io/rhel8/support-tools": unable to pull registry.redhat.io/rhel8/support-tools: unable to pull image: Error initializing source docker://registry.redhat.io/rhel8/support-tools:latest: error pinging docker registry registry.redhat.io: Get https://registry.redhat.io/v2/: dial tcp: lookup registry.redhat.io on 168.63.X.X:53: read udp 10.244.Y.Y:56193->168.63.X.X:53: i/o timeout
- This is not specific to the requests originated from a particular application/project.
- Red Hat OpenShift 4.2.27
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