Task #8732: [EPIC] As a user, I can rest easy with all sensitive credentials in the database encrypted at rest
Installer: create a key for pulp to use when encrypting sensitive db fields
#8192 encrypts fields in our database using a private key. We need to have the installer generate this key. Pulp will read in this key and use it to encrypt/decrypt sensitive fields in our database.
The private key will need to be generated at install time. We need to determine where to keep these by default securely. They need to be readable by code without a human involved.