Postinstall unit tests fail: Incorrect key file

[zrhoffman]

This Bug Report affects these Traffic Control components:

• Traffic Ops - Postinstall unit tests

Current behavior:

Postinstall unit tests fail with this as the last line (with a different tmp path each time):

Incorrect key file, expected PEM RSA private key, got: /tmp/tmp.gmrAp41qSf/etc/pki/tls/private/localhost.key: ASCII text

Expected behavior:

Postinstall unit tests should pass

Steps to reproduce:

[user@computer trafficcontrol] traffic_ops/install/bin/postinstall.test.sh
INFO:root:Starting postinstall
INFO:root:Debug is on
INFO:root:Running in automatic mode
INFO:root:Using input file /tmp/tmp.FfaQttvgIR/defaults.json
INFO:root:File sanity check complete - found 0 differences
INFO:root:===========/opt/traffic_ops/app/conf/production/database.conf===========
INFO:root:Database configuration has been saved
INFO:root:===========/opt/traffic_ops/app/conf/production/tv.conf===========
INFO:root:Database configuration has been saved
INFO:root:===========/opt/traffic_ops/app/conf/ldap.conf===========
INFO:root:===========/opt/traffic_ops/install/data/json/users.json===========
INFO:root:===========/opt/traffic_ops/install/data/json/openssl_configuration.json===========
INFO:root:===========/opt/traffic_ops/install/data/json/profiles.json===========
INFO:root:Installing SSL Certificates
INFO:root:
        We're now running a script to generate a self signed X509 SSL certificate
INFO:root:Postinstall SSL Certificate Creation
INFO:root:The server key has been generated
INFO:root:Generating an RSA Private Server Key
INFO:root:Creating a Certificate Signing Request (CSR)
INFO:root:The Certificate Signing Request has been generated
INFO:root:Removing the pass phrase from the server key
INFO:root:The pass phrase has been removed from the server key
INFO:root:Generating a Self-signed certificate
INFO:root:A server key and self signed certificate has been generated
INFO:root:Installing a server key and certificate
INFO:root:The private key has been installed
INFO:root:Installing self signed certificate
INFO:root:Saving the self signed csr
INFO:root:
        The self signed certificate has now been installed.

        You may obtain a certificate signed by a Certificate Authority using the
        server.csr file saved in the current directory.  Once you have obtained
        a signed certificate, copy it to /tmp/tmp.FfaQttvgIR/etc/pki/tls/certs/localhost.crt and
        restart Traffic Ops.
INFO:root:===========/opt/traffic_ops/app/conf/cdn.conf===========
DEBUG:root:No secrets found in cdn.conf file
INFO:root:CDN configuration has been saved
WARNING:root:no traffic vault backend configured, using default postgres
WARNING:root:no traffic vault aes encryption key location specified, using default /opt/traffic_ops/app/conf/aes.key
INFO:root:Generating an AES encryption key to /tmp/tmp.FfaQttvgIR/opt/traffic_ops/app/conf/aes.key
INFO:root:Skipping Traffic Ops restart
INFO:root:Success! Postinstall complete.
Incorrect key file, expected PEM RSA private key, got: /tmp/tmp.FfaQttvgIR/etc/pki/tls/private/localhost.key: ASCII text

[zrhoffman]

I only get this error when running locally, the GHA passes (see #7510).

[zrhoffman]

Fixed in #7450