Add customizable probes for MySQL containers

Signed-off-by: kahirokunn <okinakahiro@gmail.com>

Author: kahirokunn

charts/devlake/templates/statefulsets.yaml

@@ -69,22 +69,18 @@ spec:
             - name: mysql
               containerPort: 3306
               protocol: TCP
+          {{- with .Values.mysql.startupProbe }}
+          startupProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.mysql.livenessProbe }}
           livenessProbe:
-            exec:
-              command:
-                - "sh"
-                - "-c"
-                - "mysqladmin ping -u root -p$MYSQL_ROOT_PASSWORD"
-            initialDelaySeconds: 60
-            timeoutSeconds: 30
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.mysql.readinessProbe }}
           readinessProbe:
-            exec:
-              command:
-                - "sh"
-                - "-c"
-                - "mysqladmin ping -u root -p$MYSQL_ROOT_PASSWORD"
-            initialDelaySeconds: 5
-            timeoutSeconds: 10
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
           {{- with .Values.mysql.resources }}
           resources:
             {{- toYaml . | nindent 12 }}

charts/devlake/values.yaml

@@ -95,6 +95,32 @@ mysql:
 
   podAnnotations: {}
 
+  # Probes for MySQL container
+  startupProbe:
+    exec: &mysql_ping_exec
+      command:
+        - "sh"
+        - "-c"
+        - "mysqladmin ping -u root -p$MYSQL_ROOT_PASSWORD"
+    initialDelaySeconds: 120
+    periodSeconds: 10
+    timeoutSeconds: 10
+    failureThreshold: 60
+
+  livenessProbe:
+    exec: *mysql_ping_exec
+    initialDelaySeconds: 60
+    periodSeconds: 10
+    timeoutSeconds: 30
+    failureThreshold: 5
+
+  readinessProbe:
+    exec: *mysql_ping_exec
+    initialDelaySeconds: 5
+    periodSeconds: 5
+    timeoutSeconds: 10
+    failureThreshold: 3
+
   service:
     type: "ClusterIP"
     nodePort: ""