Neutron role does not enable osprofiler

[Stuart Grace]

The neutron pipelines in api-paste.ini do not include the osprofiler filter:
https://github.com/openstack/openstack-ansible-os_neutron/blob/3bd96fecbfa6abb1b591a74d5a4b89321a8328ff/templates/api-paste.ini.j2#L8-L9

The osprofiler filter is included in the standard pipelines for nova, glance, cinder, heat, magnum, etc. See for example:
https://github.com/openstack/openstack-ansible-os_nova/blob/9f53e04687d5cab829e5dcf9c2049fddd5f44ed7/templates/api-paste.ini.j2#L31-L32

This means when profiling is enabled, there is a gap in the timeline when the neutron API is executing.

[Kevin Carter (kevin-carter)]

Once https://review.openstack.org/#/c/573511/ is merged this should be resolved. Users wanting to enable this for neutron can do so with a config_template override:

``` yaml

profiler_overrides: &os_profiler
  profiler:
    enabled: true
    trace_sqlalchemy: true
    hmac_keys: "UNIQUE_HMACKEY" # This needs to be set consistently throughout the deployment
    connection_string: "Elasticsearch://{{ internal_lb_vip_address }}:9201"
    es_doc_type: "notification"
    es_scroll_time: "2m"
    es_scroll_size: "10000"
    filter_error_trace: "false"

neutron_neutron_conf_overrides: *os_profiler

```

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/583400

[Jonathan Rosser (jrosser)]

Upstream patch here https://review.openstack.org/#/c/583362/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/583400
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible-os_neutron/commit/?id=ad47b94849e772e4dc49d863b6a3fe7f89445dff
Submitter: Zuul
Branch: master

commit ad47b94849e772e4dc49d863b6a3fe7f89445dff
Author: Jonathan Rosser <email address hidden>
Date: Tue Jul 17 21:05:40 2018 +0000

    Add osprofiler to api-paste pipeline

    The osprofiler filter is included in the standard pipelines for
    nova, glance, cinder, heat, magnum [1], but is missing for
    upstream neutron.

    This means when a deployment uses profiling, there is a gap in the
    data collected when the neutron API is executing.

    Upstream fix https://review.openstack.org/#/c/583362/

    [1] https://github.com/openstack/openstack-ansible-os_nova/blob/master/templates/api-paste.ini.j2#L31-L32

    Change-Id: I63e2e8a1886527d363986bbb82c069eaaaa4406a
    Partial-Bug: #1781619

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 14.0.0.0b1 development milestone.