Quay nginx fails due to invalid ssl cert/key pair

Issue

Nginx crashes if Red Hat Quay is started with invalid or mismatched cert/key pair.

nginx: [emerg] SSL_CTX_use_PrivateKey_file("/quay-registry/config_app/quay-config.key") failed (SSL: error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch)
2020-01-15 00:11:37,840 INFO exited: nginx (exit status 1; not expected)