From 848abc4bd1781d251ae8db0ab37f2ecb0063c600 Mon Sep 17 00:00:00 2001
From: Timofei Larkin <lllamnyp@gmail.com>
Date: Wed, 25 Jun 2025 14:24:43 +0300
Subject: [PATCH] Create LoadBalancer service for single-node MySQL

[mysql] Bugfix: external=true did not work for MySQL deployed with a
single replica, since the MariaDB operator does not create separate
primary and secondary services for a single-node DB. A special condition
is added to make the "all-node" service a LoadBalancer if external=true
and replicas=1.

Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
---
 packages/apps/mysql/Chart.yaml             | 2 +-
 packages/apps/mysql/templates/mariadb.yaml | 6 ++++--
 packages/apps/versions_map                 | 3 ++-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/packages/apps/mysql/Chart.yaml b/packages/apps/mysql/Chart.yaml
index 4f5a9446..694e2dc3 100644
--- a/packages/apps/mysql/Chart.yaml
+++ b/packages/apps/mysql/Chart.yaml
@@ -16,7 +16,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.8.1
+version: 0.8.2
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
diff --git a/packages/apps/mysql/templates/mariadb.yaml b/packages/apps/mysql/templates/mariadb.yaml
index 42580644..50a1ca1c 100644
--- a/packages/apps/mysql/templates/mariadb.yaml
+++ b/packages/apps/mysql/templates/mariadb.yaml
@@ -61,7 +61,9 @@ spec:
     metadata:
       labels:
         app.kubernetes.io/instance: {{ $.Release.Name }}
-
+    {{- if and .Values.external (eq (int .Values.replicas) 1) }}
+    type: LoadBalancer
+    {{- end }}
   storage:
     size: {{ .Values.size }}
     resizeInUseVolumes: true
@@ -70,7 +72,7 @@ spec:
     storageClassName: {{ . }}
     {{- end }}
 
-  {{- if .Values.external }}
+  {{- if and .Values.external (gt (int .Values.replicas) 1) }}
   primaryService:
     type: LoadBalancer
   {{- end }}
diff --git a/packages/apps/versions_map b/packages/apps/versions_map
index 445d700b..895a350a 100644
--- a/packages/apps/versions_map
+++ b/packages/apps/versions_map
@@ -63,7 +63,8 @@ mysql 0.6.0 93bdf411
 mysql 0.7.0 6130f43d
 mysql 0.7.1 632224a3
 mysql 0.8.0 62cb694d
-mysql 0.8.1 HEAD
+mysql 0.8.1 4369b031
+mysql 0.8.2 HEAD
 nats 0.1.0 e9716091
 nats 0.2.0 6c5cf5bf
 nats 0.3.0 78366f19