Merge "CentOS 8: Drop trickle install to build freezer" into stable/train

docker/freezer/freezer-base/Dockerfile.j2

@@ -13,10 +13,12 @@ RUN echo '{{ install_type }} not yet available for {{ base_distro }}' \
     && /bin/false
 
 {% elif install_type == 'source' %}
-    {% set freezer_base_packages = [
-        'trickle'
-    ] %}
+    {% if distro_package_manager != 'dnf' %}
+        {% set freezer_base_packages = [
+            'trickle'
+        ] %}
 {{ macros.install_packages(freezer_base_packages | customizable("packages")) }}
+    {% endif %}
 
 ADD freezer-base-archive /freezer-base-source
 

kolla/image/build.py

@@ -166,7 +166,6 @@ UNBUILDABLE_IMAGES = {
 
     'centos8+source': {
         "cyborg-agent",          # opae-sdk does not support CentOS 8
-        "freezer-base",          # Missing package trickle
     },
 
     'debian': {

releasenotes/notes/freezer-drop-trickle-9b3eaaa7d1e4ea5a.yaml

@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    The ``trickle`` package is no longer available for CentOS 8, and has been
+    removed from the CentOS 8 Freezer images.