Pin OpenSearch Dashboards to 2.15

OpenSearch Dashboards 2.16.0 discover page hangs after initial
deployment due to an upstream bug [1].

This change fixes the issue by pinning OpenSearch Dashboards to 2.15.

Note that it seemed safer not to pin OpenSearch to fix this issue, to
avoid breaking deployments that have already deployed 2.16.

[1] opensearch-project/OpenSearch-Dashboards#7626

Closes-Bug: #2077319
Change-Id: I0de9928b2657ab5f31580325e866bff28f2b5510
(cherry picked from commit 3c49991)

docker/opensearch/opensearch-dashboards/Dockerfile.j2

@@ -10,7 +10,20 @@ LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build
 {{ macros.configure_user(name='opensearch-dashboards', shell='/bin/bash', homedir='/usr/share/opensearch-dashboards') }}
 {{ macros.enable_extra_repos(['opensearch-dashboards']) }}
 
-{% set opensearch_dashboards_packages = ['opensearch-dashboards'] %}
+# NOTE(mgoddard): Pinning to 2.15 due to https://bugs.launchpad.net/kolla/+bug/2077319
+{% if base_package_type == 'deb' %}
+COPY apt_preferences_opensearch_dashboards /etc/apt/preferences.d/opensearch_dashboards
+{% endif %}
+
+{% if base_package_type == 'rpm' %}
+    {% set opensearch_dashboards_packages = [
+        'opensearch-dashboards-2.15.*'
+    ] %}
+{% elif base_package_type == 'deb' %}
+    {% set opensearch_dashboards_packages = [
+        'opensearch-dashboards'
+    ] %}
+{% endif %}
 
 {{ macros.install_packages(opensearch_dashboards_packages | customizable("packages")) }}
 

docker/opensearch/opensearch-dashboards/apt_preferences_opensearch_dashboards

@@ -0,0 +1,3 @@
+Package: opensearch-dashboards
+Pin: version 2.15.*
+Pin-Priority: 1000

releasenotes/notes/bug-2077319-a47a06175a589a1a.yaml

@@ -0,0 +1,9 @@
+---
+fixes:
+  - |
+    Fixes an `issue
+    <https://github.com/opensearch-project/OpenSearch-Dashboards/issues/7626>`__
+    in the OpenSearch Dashboards image where the discover page would hang after
+    initial deployment when there is no index pattern. This has been resolved
+    by reverting OpenSearch Dashboards to version 2.15.
+    `LP#2077319 <https://bugs.launchpad.net/kolla/+bug/2077319>`__