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On etcd host; the certificates presented on ports 2379/2380 were TLSv1

x port 2379. 2380,  High Strength Ciphers (>= 112-bit key)

    TLSv1

      ECDHE-RSA-RC4-SHA            Kx=ECDH        Au=RSA      Enc=RC4(128)             Mac=SHA1   

      RC4-SHA                      Kx=RSA         Au=RSA      Enc=RC4(128)             Mac=SHA1


Customer is looking to be able to mandate stronger ciphers in the certificates generated during installation. Looking at upstream PR https://github.com/coreos/etcd/pull/5541 as well.

IIUC, it is enough to apply https://github.com/coreos/etcd/pull/5541?

Rebuilding etcd on RHEL via https://bugzilla.redhat.com/show_bug.cgi?id=1357621. Keeping the issue open to track the openshift part of it.

This issue is already resolved in RHEL via https://bugzilla.redhat.com/show_bug.cgi?id=1357621. The bug has been left opened to resolve the same issue in OpenShift environment.

Closing this bug as etcd for 7.2.* AH is resolved. 7.3.* provides newer version of etcd which has the provided patch already included.