Comment 0 for bug 1715024

I upgraded Ocata to Pike and am getting error in apache2 cinder_error.log when trying to list volumes via API or Horizon:

root@cinder-test:/var/log/apache2# tail -f cinder_error.log
2017-09-04 15:30:52.587013 mod_wsgi (pid=1847): Target WSGI script '/usr/bin/cinder-wsgi' cannot be loaded as Python module.
2017-09-04 15:30:52.587099 mod_wsgi (pid=1847): Exception occurred processing WSGI script '/usr/bin/cinder-wsgi'.
2017-09-04 15:30:52.587126 Traceback (most recent call last):
2017-09-04 15:30:52.587147 File "/usr/bin/cinder-wsgi", line 51, in <module>
2017-09-04 15:30:52.587220 application = initialize_application()
2017-09-04 15:30:52.587235 File "/usr/lib/python2.7/dist-packages/cinder/wsgi/wsgi.py", line 46, in initialize_application
2017-09-04 15:30:52.588456 return wsgi.Loader(CONF).load_app(name='osapi_volume')
2017-09-04 15:30:52.588480 File "/usr/lib/python2.7/dist-packages/oslo_service/wsgi.py", line 340, in __init__
2017-09-04 15:30:52.589984 raise ConfigNotFound(path=config_path)
2017-09-04 15:30:52.590011 ConfigNotFound: Could not find config at api-paste.ini

Also did fresh controller install (Pike) on a test machine to see if I could replicate, using instructions: https://docs.openstack.org/install-guide/openstack-services.html#minimal-deployment

I get the same error, following docs closely.

Here is some output of the environment:

################# PERMISSIONS ########################

root@cinder-test:/etc/cinder# ls -aFl
total 36
drwxr-x--- 3 root cinder 4096 Sep 4 15:10 ./
drwxr-xr-x 105 root root 4096 Sep 4 15:30 ../
-rw-r--r-- 1 root cinder 2711 Aug 30 11:07 api-paste.ini
-rw-r--r-- 1 root cinder 812 Sep 4 15:10 cinder.conf
-rw-r--r-- 1 root cinder 1359 Aug 30 13:11 logging.conf
-rw-r--r-- 1 root cinder 7708 Aug 30 11:07 policy.json
-rw-r--r-- 1 root root 991 Aug 30 11:07 rootwrap.conf
drwxr-xr-x 2 root root 4096 Aug 31 11:49 rootwrap.d/

################# API-PASTE.INI ########################

#############
# OpenStack #
#############

[composite:osapi_volume]
use = call:cinder.api:root_app_factory
/: apiversions
/v1: openstack_volume_api_v1
/v2: openstack_volume_api_v2
/v3: openstack_volume_api_v3

[composite:openstack_volume_api_v1]
use = call:cinder.api.middleware.auth:pipeline_factory
noauth = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler noauth apiv1
keystone = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv1
keystone_nolimit = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv1

[composite:openstack_volume_api_v2]
use = call:cinder.api.middleware.auth:pipeline_factory
noauth = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler noauth apiv2
keystone = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv2
keystone_nolimit = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv2

[composite:openstack_volume_api_v3]
use = call:cinder.api.middleware.auth:pipeline_factory
noauth = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler noauth apiv3
keystone = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv3
keystone_nolimit = cors http_proxy_to_wsgi request_id faultwrap sizelimit osprofiler authtoken keystonecontext apiv3

[filter:request_id]
paste.filter_factory = oslo_middleware.request_id:RequestId.factory

[filter:http_proxy_to_wsgi]
paste.filter_factory = oslo_middleware.http_proxy_to_wsgi:HTTPProxyToWSGI.factory

[filter:cors]
paste.filter_factory = oslo_middleware.cors:filter_factory
oslo_config_project = cinder

[filter:faultwrap]
paste.filter_factory = cinder.api.middleware.fault:FaultWrapper.factory

[filter:osprofiler]
paste.filter_factory = osprofiler.web:WsgiMiddleware.factory

[filter:noauth]
paste.filter_factory = cinder.api.middleware.auth:NoAuthMiddleware.factory

[filter:sizelimit]
paste.filter_factory = oslo_middleware.sizelimit:RequestBodySizeLimiter.factory

[app:apiv1]
paste.app_factory = cinder.api.v1.router:APIRouter.factory

[app:apiv2]
paste.app_factory = cinder.api.v2.router:APIRouter.factory

[app:apiv3]
paste.app_factory = cinder.api.v3.router:APIRouter.factory

[pipeline:apiversions]
pipeline = cors http_proxy_to_wsgi faultwrap osvolumeversionapp

[app:osvolumeversionapp]
paste.app_factory = cinder.api.versions:Versions.factory

##########
# Shared #
##########

[filter:keystonecontext]
paste.filter_factory = cinder.api.middleware.auth:CinderKeystoneContext.factory

[filter:authtoken]
paste.filter_factory = keystonemiddleware.auth_token:filter_factory

################# CINDER.CONF ########################

[DEFAULT]
rootwrap_config = /etc/cinder/rootwrap.conf
api_paste_confg = /etc/cinder/api-paste.ini
iscsi_helper = tgtadm
volume_name_template = volume-%s
volume_group = cinder-volumes
verbose = True
auth_strategy = keystone
state_path = /var/lib/cinder
lock_path = /var/lock/cinder
volumes_dir = /var/lib/cinder/volumes
enabled_backends = lvm
transport_url = rabbit://openstack:openstack@controller
my_ip = 10.1.1.22

[database]
connection = mysql+pymysql://cinder:openstack@controller/cinder

[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = cinder
password = openstack

[oslo_concurrency]
lock_path = /var/lib/cinder/tmp

################# APACHE WSGI ########################

Listen 8776
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\" %D(us)" cinder_combined

<VirtualHost *:8776>
    WSGIDaemonProcess cinder-wsgi processes=5 threads=1 user=cinder display-name=%{GROUP}
    WSGIProcessGroup cinder-wsgi
    WSGIScriptAlias / /usr/bin/cinder-wsgi
    WSGIApplicationGroup %{GLOBAL}
    WSGIPassAuthorization On
    <IfVersion >= 2.4>
      ErrorLogFormat "%{cu}t %M"
    </IfVersion>

    ErrorLog /var/log/apache2/cinder_error.log
    CustomLog /var/log/apache2/cinder.log cinder_combined

    <Directory /usr/bin>
<IfVersion >= 2.4>
            Require all granted
        </IfVersion>
        <IfVersion < 2.4>
            Order allow,deny
            Allow from all
        </IfVersion>
    </Directory>
</VirtualHost>