cloned upstream ovirt bug to rhev

+++ This bug was initially created as a clone of Bug #905754 +++

Description of problem:

Any 3.2 should use apache and ports redirection on the default 80/443 ports.

--- Additional comment from Itamar Heim on 2013-01-30 03:54:09 EST ---

shouldn't this be "any 3.3"?

--- Additional comment from Sandro Bonazzola on 2013-04-29 11:26:41 EDT ---

(In reply to comment #0)

> Any 3.2 should use apache and ports redirection on the default 80/443 ports.

the above statement become:
Any 3.3 instance must use apache and should use ports redirection.
So, httpd proxy enabled (not an option) on scratch installation and forced migration to http proxy on upgrade.
Port redirection must be still configurable by the user during setup (80/443 by default)

engine-upgrade must keep the existing ports in non-interactive executions and prompt the user in interactive executions allowing to change them to 80/443.

--- Additional comment from Sandro Bonazzola on 2013-05-02 10:26:01 EDT ---

I'm looking in the code and I've found a point where I'm in doubt about how to handle the case.

The current engine-setup implementation perform some checks that change the behavior of the installer documented as:

1. Check whether the relevant httpd configuration files were changed,
   As it's an indication for the setup that the httpd application is being actively used,
   Therefore we may need to ask (dynamic change) the user whether to override this configuration.
2. Check if IPA is installed and drop port 80/443 support.

What the script really do is setting OVERRIDE_HTTPD_CONFIG default to False in both cases and just for case 2 call also setHttpPortsToNonProxyDefault.

How have I to handle those 2 cases which conflict with the forced proxy policy?

--- Additional comment from Sandro Bonazzola on 2013-05-20 09:54:58 EDT ---

We split the http configuration into three:
1. Install ajp proxy per our URIs[1][2].
2. Optionally set root redirection from / to /ovirt-engine
3. Optionally configure mod_ssl with our certificate.

The mandatory apache configuration[1] does not alter any configuration file.
[1] http://gerrit.ovirt.org/13318
[2] http://gerrit.ovirt.org/14304

So there is no reason for checking if user has changed the http
configuration for just forcing proxy.

About IPA conflicts if I've understood correctly there is only collision
between mod_nss used by IPA and mod_ssl used if we enable mod_ssl
configuration.
It seems there was an issue with mod_proxy and using 2 different SSL
certificates (IPA & RHEV) on the same apache server.

So, I can force proxy enabled and I can force SSL configuration disabled
if IPA is detected.
I can leave root redirection optional in any case.

otopi implementation already force proxy enabled so there should be just
to disable ssl if IPA is detected.

--- Additional comment from Sandro Bonazzola on 2013-05-24 09:59:02 EDT ---

patches pushed upstream for legacy engine-setup and engine-upgrade.

engine-upgrade verified only upgrading from nightly because it seems that engine-upgrade from master fails on fkvalidator_sp.sql when upgrading from 3.2.2 stable.

otopi implementation of engine-setup-2 doesn't need any change for the setup mode. It may need some changes in upgrading mode.