openstack-heat: Drop flannel for cloud Routes API

cluster/saltbase/salt/docker/init.sls

@@ -18,6 +18,27 @@ bridge-utils:
     - mode: 644
     - makedirs: true
 
+{% if grains.cloud is defined and grains.cloud == 'openstack' %}
+
+cbr0:
+  # workaround https://github.com/saltstack/salt/issues/20570
+  kmod.present:
+    - name: bridge
+
+  network.managed:
+    - enabled: True
+    - type: bridge
+    - proto: none
+    - ports: none
+    - bridge: cbr0
+    - delay: 0
+    - bypassfirewall: True
+    - require_in:
+      - service: docker
+    - require:
+      - kmod: cbr0
+{% endif %}
+
 {% if (grains.os == 'Fedora' and grains.osrelease_info[0] >= 22) or (grains.os == 'CentOS' and grains.osrelease_info[0] >= 7) %}
 
 docker:
@@ -512,4 +533,3 @@ docker:
       - cmd: fix-service-docker
 {% endif %}
 {% endif %} # end grains.os_family != 'RedHat'
-