Update wsgi configuration after services migrating to python3.

Change-Id: I25d8db36dabd5f148b2ec96a30381c6a86fa710e
Depends-On: https://review.openstack.org/#/c/625298/
Partially Implements: blueprint python3-support

Commit 2f6b1c68 changed the way the
cephfs source path was generated and dropped the source path component,
keeping only the list of IPs and ports. This results in failures to
mount cephfs with the following message:

    source mount path was not specified
    failed to resolve source

Change-Id: I94d18ec064971870264ae8d0b279564f2172e548
Closes-Bug: #1819502

With newer Docker versions `systemctl show docker` returns:

  MountFlags=shared

Instead of:

  MountFlags=1048576

This fix accepts either value as valid to ensure the check is not
erroneously failing.

Closes-Bug: #1791365

Change-Id: I2bd626466d6a0e189e0d85877b2be8f2b4bb37f4

It is possible to reference undefined variable in kolla-docker module if
DockerWorker object initialization fail, so the current behaviour will
crash the playbook with the unwanted error message :

UnboundLocalError: local variable 'dw' referenced before assignment

Change-Id: Ic8d26b11f93255220888b5406f8ab4a6f81736c2
Closes-Bug: #1819361

Kibana deployment failed becaused of kibana_confs variable does not have attribute key,
So handlers failed to check conditional kibana_conf.changed | bool becaused of
kibana_confs.results|selectattr(item.key) does not exits.

Change variable name kibana_confs to kibana_conf.

Change-Id: If5e0a25b270a6f05c435a6dc32e2ac49406389c5
Closes-Bug: #1819246

Recently as part of adding support for Docker CE we added the following
task to the baremetal role:

- name: Update yum cache
  yum:
    update_cache: yes
  become: True
  when: ansible_os_family == 'RedHat'

This works fine on Ansible 2.5, but no longer works on Ansible
2.6, which complains that either the 'name' or 'list' argument
is mandatory for the yum module.

This change updates the cache later on, when installing packages.

Change-Id: I1a158bda52c4e362cb12d361d7f961cfc699b385
Closes-Bug: #1819173

The message field for these format files wasn't renamed when
the input field was renamed. This problem was masked by Monasca
which renames the message field back to 'message' for the Fluentd
Monasca output plugin.

Change-Id: I2674958b1e64efddbca4765fefa55431261648e6
Closes-Bug: #1819168

Currently permissions are set to be root, but tempest runs as 'tempest'
user - and gets permission denied.

Change-Id: Ia3a8a2e780f95c6aa16a9d2483d987322741cfbf

When using custom storage backends with cinder.conf overrides file,
precheck stage in kolla-ansible is fail. This commit adds option
'skip_cinder_backend_check' (default: False) to cinder role.

Change-Id: Ifee138ad8b281903ea2365441aada044c80c46f0

This adds a horizon_listen_port option, which defaults to horizon_port
for backward compatibility.

This option allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: I1e47e9524fd9c41bbb2cd2fc80560e53d9296599
Implements: blueprint service-hostnames

This allows gnocchi service endpoints to use custom hostnames, and adds the
following variables:

* gnocchi_internal_fqdn
* gnocchi_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds a gnocchi_api_listen_port option, which defaults to
gnocchi_api_port for backward compatibility.

This option allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: Ic9a0f8130b19ed77987f45fd0e824b82ea7a7328
Implements: blueprint service-hostnames

This allows aodh service endpoints to use custom hostnames, and adds the
following variables:

* aodh_internal_fqdn
* aodh_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds a aodh_api_listen_port option, which defaults to
aodh_api_port for backward compatibility.

This option allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: Iee08b725d066bfbe543d9319c47941d59c22212a
Implements: blueprint service-hostnames

This allows heat service endpoints to use custom hostnames, and adds the
following variables:

* heat_internal_fqdn
* heat_external_fqdn
* heat_cfn_internal_fqdn
* heat_cfn_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds heat_api_listen_port and heat_api_cfn_listen_port
options, which default to heat_api_port and heat_api_cfn_port for
backward compatibility.

These options allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: Ifb8bb55799703883d81be6a55641be7b2474fd4e
Implements: blueprint service-hostnames

This allows ironic service endpoints to use custom hostnames, and adds the
following variables:

* ironic_internal_fqdn
* ironic_external_fqdn
* ironic_inspector_internal_fqdn
* ironic_inspector_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds ironic_api_listen_port and ironic_inspector_listen_port
options, which default to ironic_api_port and ironic_inspector_port for
backward compatibility.

These options allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: I45b175e85866b4cfecad8451b202a5a27f888a84
Implements: blueprint service-hostnames

This allows swift service endpoints to use custom hostnames, and adds the
following variables:

* swift_internal_fqdn
* swift_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds a swift_proxy_server_listen_port option, which defaults to
swift_proxy_server_port for backward compatibility.

This option allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

While we're in here, use the ``internal_protocol`` variable for the swift
endpoint in cinder's swift backup driver configuration, instead of hardcoding
to ``http``.

Change-Id: Ibc01618383c26e16c0067f7f6b9cf5160d968d1e
Implements: blueprint service-hostnames

This allows senlin service endpoints to use custom hostnames, and adds the
following variables:

* senlin_internal_fqdn
* senlin_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds a senlin_api_listen_port option, which defaults to
senlin_api_port for backward compatibility.

This option allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: I26e8cfdde54aaf0648473f54136cf5350f356917
Implements: blueprint service-hostnames

This allows octavia service endpoints to use custom hostnames, and adds the
following variables:

* octavia_internal_fqdn
* octavia_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds a octavia_api_listen_port option, which defaults to
octavia_api_port for backward compatibility.

This option allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: I1310eb5573a469b1a0e9549e853734455307a8b3
Implements: blueprint service-hostnames

This allows barbican service endpoints to use custom hostnames, and adds the
following variables:

* barbican_internal_fqdn
* barbican_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds a barbican_api_listen_port option, which defaults to
barbican_api_port for backward compatibility.

This option allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: I1807a9c8b64d737d0e278bb3e925fecb4fadfb08
Implements: blueprint service-hostnames

This allows designate service endpoints to use custom hostnames, and adds
the
following variables:

* designate_internal_fqdn
* designate_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds a designate_api_listen_port option, which defaults to
designate_api_port for backward compatibility.

This option allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: I654bb3d1109b96cbaff6f450655cd65f349a94e6
Implements: blueprint service-hostnames

This allows cinder service endpoints to use custom hostnames, and adds the
following variables:

* cinder_internal_fqdn
* cinder_external_fqdn

These default to the old values of kolla_internal_fqdn or
kolla_external_fqdn.

This also adds a cinder_api_listen_port option, which defaults to
cinder_api_port for backward compatibility.

This option allow the user to differentiate between the port the
service listens on, and the port the service is reachable on. This is
useful for external load balancers which live on the same host as the
service itself.

Change-Id: I2a5036456afac6135dca3723ae754ea9f8bc8475
Implements: blueprint service-hostnames

We're duplicating code to build the keystone URLs in nearly every
config, where we've already done it in group_vars. Replace the
redundancy with a variable that does the same thing.

Change-Id: I207d77870e2535c1cdcbc5eaf704f0448ac85a7a