Added slowlog to mariadb

deploy/kubernetes/manifests/mariadb-standalone.yaml

@@ -51,7 +51,7 @@ spec:
       - image: mariadb:10.3
         name: mariadb
         env:
-        - name: MYSQL_ROOT_PASSWORD
+        - name: MARIADB_ROOT_PASSWORD
           valueFrom:
            secretKeyRef:
              name: wrestlingdev-secrets
@@ -125,6 +125,8 @@ spec:
         volumeMounts:
         - name: wrestlingdev-mariadb-persistent-storage
           mountPath: /var/lib/mysql
+        - name: mysettings-config-volume
+          mountPath: /etc/mysql/mariadb.conf.d
         # resources:
         #   limits:
         #     memory: "100Mi"
@@ -175,3 +177,29 @@ spec:
       - name: wrestlingdev-mariadb-persistent-storage
         persistentVolumeClaim:
           claimName: wrestlingdev-mariadb-pv-claim
+      - name: mysettings-config-volume
+        configMap:
+          name: mariadb-mysettings
+---
+# /etc/mysql/mariadb.conf.d/70-mysettings.cnf
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: mariadb-mysettings
+  labels:
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: EnsureExists
+data:
+  70-mysettings.cnf: |
+    [mariadb]
+    # Slow log
+    slow_query_log=1
+    #slow_query_log_file=/var/log/mariadb/slow.log
+    slow_query_log_file=/var/lib/mysql/slow.log
+    long_query_time=0.2
+    # mysqltunner recommendations
+    tmp_table_size=32M
+    max_heap_table_size=32M
+    performance_schema=ON
+    innodb_log_file_size=32M
+    table_open_cache=4000