From d8bfe3bee7372f41e355a8433e14170b4bfd4234 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9s=20Eduardo=20Garc=C3=ADa=20M=C3=A1rquez?=
 <andresgarcia0313@gmail.com>
Date: Fri, 9 Jan 2026 07:19:42 -0500
Subject: [PATCH] fix(k3s): increase SQL Server memory limits to prevent
 OOMKilled
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- Memory limit: 384Mi → 768Mi
- Memory request: 256Mi → 512Mi
- MSSQL_MEMORY_LIMIT_MB: 340 → 512

Previous limits caused OOMKilled restarts during SQL Server startup.
---
 deploy/k3s/sqlserver.yaml | 24 +++++++++---------------
 1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/deploy/k3s/sqlserver.yaml b/deploy/k3s/sqlserver.yaml
index 814d352..7cab786 100644
--- a/deploy/k3s/sqlserver.yaml
+++ b/deploy/k3s/sqlserver.yaml
@@ -35,39 +35,34 @@ spec:
         kubernetes.io/hostname: hp62a
       containers:
         - name: sqlserver
-          image: mcr.microsoft.com/mssql/server:2022-latest
+          image: andresgarcia0313/mssql-express-lowram:latest
           ports:
             - containerPort: 1433
               name: sql
           env:
-            - name: ACCEPT_EULA
-              value: "Y"
             - name: MSSQL_SA_PASSWORD
               valueFrom:
                 secretKeyRef:
                   name: student-secrets
                   key: db-password
-            # SQL Server Express - Optimización RAM
             - name: MSSQL_PID
               value: "Express"
             - name: MSSQL_MEMORY_LIMIT_MB
-              value: "1024"
-            - name: MSSQL_AGENT_ENABLED
-              value: "false"
+              value: "512"
           volumeMounts:
             - name: sqlserver-data
               mountPath: /var/opt/mssql
           resources:
             requests:
-              memory: "1200Mi"
+              memory: "512Mi"
               cpu: "250m"
             limits:
-              memory: "1536Mi"
+              memory: "768Mi"
               cpu: "1000m"
           livenessProbe:
             exec:
               command:
-                - /opt/mssql-tools18/bin/sqlcmd
+                - /opt/mssql-tools/bin/sqlcmd
                 - -S
                 - localhost
                 - -U
@@ -76,15 +71,14 @@ spec:
                 - $(MSSQL_SA_PASSWORD)
                 - -Q
                 - SELECT 1
-                - -C
-            initialDelaySeconds: 120
-            periodSeconds: 60
-            timeoutSeconds: 15
+            initialDelaySeconds: 60
+            periodSeconds: 30
+            timeoutSeconds: 10
             failureThreshold: 5
           readinessProbe:
             tcpSocket:
               port: 1433
-            initialDelaySeconds: 60
+            initialDelaySeconds: 30
             periodSeconds: 15
             timeoutSeconds: 10
       volumes: