zun-api uses apache to launch processes

[Eduardo Gonzalez]

After zun deployed with kolla-ansible zun_api container keeps restarting due missing /etc/zun/api-paste.ini file.
This file is present at /zun/etc/zun/api-paste.ini, but the copy in the image is made from /zun/etc/ resulting in /etc/zun/zun/api-paste.ini

Also, zun-api makes use of wsgi to launch processes.
Zun image lacks of configuration for apache.

Zun images need root privs, api for apache and compute to connect with docker.

2017-04-12 14:52:05.519 5 CRITICAL zun [-] ConfigFilesNotFoundError: Failed to find some config files: api-paste.ini
2017-04-12 14:52:05.519 5 ERROR zun Traceback (most recent call last):
2017-04-12 14:52:05.519 5 ERROR zun File "/var/lib/kolla/venv/bin/zun-api", line 10, in <module>
2017-04-12 14:52:05.519 5 ERROR zun sys.exit(main())
2017-04-12 14:52:05.519 5 ERROR zun File "/var/lib/kolla/venv/lib/python2.7/site-packages/zun/cmd/api.py", line 44, in main
2017-04-12 14:52:05.519 5 ERROR zun CONF.api.enable_ssl_api
2017-04-12 14:52:05.519 5 ERROR zun File "/var/lib/kolla/venv/lib/python2.7/site-packages/zun/common/service.py", line 59, in __init__
2017-04-12 14:52:05.519 5 ERROR zun self.app = app.load_app()
2017-04-12 14:52:05.519 5 ERROR zun File "/var/lib/kolla/venv/lib/python2.7/site-packages/zun/api/app.py", line 61, in load_app
2017-04-12 14:52:05.519 5 ERROR zun raise cfg.ConfigFilesNotFoundError([CONF.api.api_paste_config])
2017-04-12 14:52:05.519 5 ERROR zun ConfigFilesNotFoundError: Failed to find some config files: api-paste.ini

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/456251

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/456251
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=a159c686d7fbbf71a21a28a09608d000b99471e0
Submitter: Jenkins
Branch: master

commit a159c686d7fbbf71a21a28a09608d000b99471e0
Author: Eduardo Gonzalez <email address hidden>
Date: Wed Apr 12 16:17:43 2017 +0100

    Fix zun images

    Zun uses wsgi to start process.
    Rework zun-base image to make use of wsgi.
    Create zun user with macros to maintain static uids.
    Zun compute need root to connect docker

    Change-Id: Idd417e1b804148543ee5f403a836fa1f3e6f7fb0
    Closes-Bug: #1682142

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla 5.0.0.0b2 development milestone.