Use <project>_install_type instead of kolla_install_type
to set python_path. For example, general kolla_install_type
is 'binary', but user wants to deploy Horizon from 'source'.
Horizon templates still use python_path=/usr/share/openstack-dashboard,
it is wrong.

Change-Id: Ide6a24e17b1f8ab6506aa5e53f70693706830418

Disable ServerSignature and Hide apache related infromation.

Change-Id: I9188ddb85988539087c922117bb9f53454b7507c

Apache access log formats are modified to be consistent with
the format defined in wsgi-keystone.conf, which includes
the response time (%D) and X-forwarder-For fields.

Change-Id: I02aa5eb106fb894196dfb6e22daf2968e27ed3cb
Closes-Bug: #1703571

Trace method is enabled in default for httpd. There is security risk
with trace enabled. So disable it in default. more info please check[0].

[0] https://security.stackexchange.com/a/7711

Change-Id: I4496a6d058d88e1abfb210085f189e7a610e0362
Closes-Bug: #1705160

Configure zun-api to use apache.
Fix zun endpoint (tenant_id) causes a 404 error.
Fix zun.conf options
Change zun port, correct port is 9517
Zun compute need privileged and mount docker lib volume

Change-Id: Id9455e7dde62e1994a3f6ae8f30d378e5cda4262
Closes-Bug: #1682165