From 59dd629b0e96a9b4dc6fd2a093afbffe1833a320 Mon Sep 17 00:00:00 2001
From: hsiegeln <37154749+hsiegeln@users.noreply.github.com>
Date: Tue, 31 Mar 2026 17:31:17 +0200
Subject: [PATCH] fix: create cameleer database on ClickHouse startup

ClickHouse only has the 'default' database out of the box. The JDBC URL
connects to 'cameleer', so the database must exist before the server starts.
Uses /docker-entrypoint-initdb.d/ init script via ConfigMap.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 deploy/clickhouse.yaml | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/deploy/clickhouse.yaml b/deploy/clickhouse.yaml
index 861feff4..f9347556 100644
--- a/deploy/clickhouse.yaml
+++ b/deploy/clickhouse.yaml
@@ -25,6 +25,8 @@ spec:
           volumeMounts:
             - name: data
               mountPath: /var/lib/clickhouse
+            - name: initdb
+              mountPath: /docker-entrypoint-initdb.d
           resources:
             requests:
               memory: "2Gi"
@@ -48,6 +50,10 @@ spec:
             periodSeconds: 5
             timeoutSeconds: 3
             failureThreshold: 3
+      volumes:
+        - name: initdb
+          configMap:
+            name: clickhouse-initdb
   volumeClaimTemplates:
     - metadata:
         name: data
@@ -73,3 +79,12 @@ spec:
     - port: 9000
       targetPort: 9000
       name: native
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: clickhouse-initdb
+  namespace: cameleer
+data:
+  01-create-database.sql: |
+    CREATE DATABASE IF NOT EXISTS cameleer;