[stable-only]: Switch to uWSGI module

For some reason (pbr, setuptools, upper-constraints, devstack itself)
devstack can't find /opt/stack/data/venv/bin/magnum-api-wsgi

It's a partial cherry-pick of If8a155a3cebf8cd6a6d22ed7617f2777fbfac11f

buster-slim got moved to debian/eol
marking flannel jobs as non-voting for now

Change-Id: I331ef443c626c8f8936e75ac20b76a464092fbf1
Signed-off-by: Michal Nasiadka <mnasiadka@gmail.com>

.zuul.yaml

@@ -145,9 +145,11 @@
       jobs:
         - magnum-tempest-plugin-tests-api
         - magnum-tempest-plugin-tests-api-jammy
-        - magnum-tempest-plugin-tests-cluster-k8s_fcos_v1-1.27-flannel
+        - magnum-tempest-plugin-tests-cluster-k8s_fcos_v1-1.27-flannel:
+            voting: false
         - magnum-tempest-plugin-tests-cluster-k8s_fcos_v1-1.27-calico
-        - magnum-tempest-plugin-tests-cluster-k8s_fcos_v1-1.28-flannel
+        - magnum-tempest-plugin-tests-cluster-k8s_fcos_v1-1.28-flannel:
+            voting: false
         - magnum-tempest-plugin-tests-cluster-k8s_fcos_v1-1.28-calico
         - magnum-container-build
     gate:

devstack/lib/magnum

@@ -49,7 +49,7 @@ MAGNUM_API_PASTE=$MAGNUM_CONF_DIR/api-paste.ini
 MAGNUM_K8S_KEYSTONE_AUTH_DEFAULT_POLICY=$MAGNUM_CONF_DIR/k8s_keystone_auth_default_policy.json
 MAGNUM_POLICY=$MAGNUM_CONF_DIR/policy.yaml
 
-MAGNUM_UWSGI=$MAGNUM_BIN_DIR/magnum-api-wsgi
+MAGNUM_UWSGI=magnum.wsgi.api:application
 MAGNUM_UWSGI_CONF=$MAGNUM_CONF_DIR/magnum-api-uwsgi.ini
 
 # Public facing bits
@@ -242,7 +242,7 @@ function create_magnum_conf {
 
     iniset $MAGNUM_CONF kubernetes keystone_auth_default_policy $MAGNUM_K8S_KEYSTONE_AUTH_DEFAULT_POLICY
 
-    write_uwsgi_config "$MAGNUM_UWSGI_CONF" "$MAGNUM_UWSGI" "/container-infra"
+    write_uwsgi_config "$MAGNUM_UWSGI_CONF" "$MAGNUM_UWSGI" "/container-infra" "" "magnum-api"
 }
 
 function create_api_paste_conf {

dockerfiles/helm-client/Dockerfile

@@ -1,5 +1,5 @@
 ARG HELM_VERSION=v3.2.0
-FROM debian:buster-slim
+FROM debian/eol:buster-slim
 
 ARG HELM_VERSION
 

magnum/wsgi/api.py

@@ -0,0 +1,24 @@
+# -*- mode: python -*-
+#
+# Copyright 2017 SUSE Linux GmbH
+#
+# 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.
+
+import sys
+
+from magnum.api import app as api_app
+from magnum.common import service
+
+service.prepare_service(sys.argv)
+
+application = api_app.load_app()