"no auth token" debug logs are confusing

[Colleen Murphy]

When things go wrong and the regular info-level logs are not informative enough, it is common to turn on debug logging to see what's up. When we do that, we see this message spamming the logs for auth requests:

"There is either no auth token in the request or the certificate issuer is not trusted. No auth context will be set."

It's actually a benign message but its meaning is totally unclear and to the untrained eye it looks like the cause of auth problems. We should either get rid of the message or reword it to make it clear what it means.

It looks like it's perhaps a holdover from the PKI days and could just be removed but I'm not sure.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/514810

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/514810
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=dd473ce7ecb2636ec0a06d31c6211ee113fa2840
Submitter: Zuul
Branch: master

commit dd473ce7ecb2636ec0a06d31c6211ee113fa2840
Author: Colleen Murphy <email address hidden>
Date: Tue Oct 24 21:54:14 2017 +0200

    Remove "no auth token" debug log

    When things go badly and we turn on debug logs, we start seeing this
    message about a missing auth token for every auth request. To the
    untrained eye, it looks like the culprit when you are debugging auth
    problems. In reality, it usually just means the initial POST
    /auth/tokens request was sent, which does not include the X-Auth-Token
    header. This log adds more confusion than clarify, so this patch removes
    itin favor of a code comment.

    Change-Id: I4657523a170607d664b73ac1f1ab44d7f1460b33
    Closes-bug: #1726736

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/keystone 13.0.0.0b2 development milestone.