Add sentry to horizon

Change-Id: I90036238a8a30ebcd068ececb8a5fc662eb9965f

images/horizon/Dockerfile

@@ -30,6 +30,7 @@ RUN python manage.py compilemessages && \
     chown 1001 -R local/ ../static
 COPY *.svg ../static/dashboard/img/
 COPY *.ico ../static/dashboard/img/
+COPY wsgi.py /usr/local/lib/python3.7/site-packages/openstack_dashboard/wsgi.py
 EXPOSE 8000
 ENV UWSGI_HTTP_SOCKET=:8000 \
     UWSGI_WSGI_FILE=/usr/local/lib/python3.7/site-packages/openstack_dashboard/wsgi.py \

images/horizon/requirements.txt

@@ -1,5 +1,6 @@
 uWSGI
 python-memcached
+sentry-sdk
 git+https://opendev.org/openstack/horizon@stable/ussuri
 git+https://opendev.org/openstack/heat-dashboard@stable/ussuri
 git+https://opendev.org/openstack/designate-dashboard@stable/ussuri

images/horizon/wsgi.py

@@ -0,0 +1,44 @@
+#!/usr/local/bin/python
+# Copyright (c) 2020 VEXXHOST, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+WSGI config for openstack_dashboard project.
+"""
+
+import os
+import sys
+
+import pkg_resources
+import sentry_sdk
+
+from django.core.wsgi import get_wsgi_application
+from sentry_sdk.integrations import wsgi
+
+VERSION = pkg_resources.get_distribution("horizon").version
+
+sentry_sdk.init(
+    release="horizon@%s" % VERSION,
+    traces_sample_rate=0.1
+)
+
+# Add this file path to sys.path in order to import settings
+sys.path.insert(0, os.path.normpath(os.path.join(
+    os.path.dirname(os.path.realpath(__file__)), '..')))
+os.environ['DJANGO_SETTINGS_MODULE'] = 'openstack_dashboard.settings'
+sys.stdout = sys.stderr
+
+application = get_wsgi_application()
+application = wsgi.SentryWsgiMiddleware(application)

openstack_operator/templates/horizon/daemonset.yml.j2

@@ -41,6 +41,10 @@ spec:
         image: vexxhost/horizon:latest
         imagePullPolicy: Always
         env:
+        {% if 'sentryDSN' in spec %}
+        - name: SENTRY_DSN
+          value: {{ spec.sentryDSN }}
+        {% endif %}
         {% for v in env %}
         - name: "{{ v.name }}"
           value: "{{ v.value }}"