When a user loads a bad pkcs12 bundle or one with a pass phrase into
barbican and then uses it for a TLS-TERMINATED listener, the error
we return the user is misleading[1].
This patch improves the error message to point out that we got the
bundle from barbican, but that it is unreadable and/or protected
with a pass phrase.
[1] Could not retrieve certificate: [ ... ] (HTTP 400)
Conflicts:
octavia/api/v2/controllers/listener.py
Change-Id: I6ad0349dba62b1141be07bfb0e40171e9f7a91b9
Story: 2006587
Task: 36713
(cherry picked from commit a0f4335c38)
(cherry picked from commit a501714a76)
(cherry picked from commit 08916abd2b)