Custom build fail with error message 'x509: certificate signed by unknown authority' in OpenShift

Issue

• Build using dockerfile strategy is failing.
• Build fails with following error message even though image stream can be created and the image can be pulled from registry.

Step 1/6 : FROM httpd@sha256:246fed9aa9be7aaba1e04d9146be7a3776c9a40b5cfb3242d3427f79edee37db
Trying to pull repository registry.access.redhat.com/httpd ...
Trying to pull repository registry.access.redhat.com/httpd ...
Trying to pull repository docker.io/library/httpd ...
error: build error: Get https://registry-1.docker.io/v2/: x509: certificate signed by unknown authority