feat: add basic helm healthcheck config (#8)

Author: jeanbaptisterevel

src/templates/deployment.yaml

@@ -45,13 +45,15 @@ spec:
           env:
             - name: EULA
               value: {{ .Values.eula | squote }}
+          {{- with .Values.healthcheck }}
           livenessProbe:
             exec:
               command: ["mc-monitor", "status"]
-            periodSeconds: 1
-            failureThreshold: 5 # 5 seconds before considering the pod as unhealthy
+            periodSeconds: {{ .checkInterval }}
+            failureThreshold: {{ div .failureThreshold.liveness .checkInterval }}
           startupProbe:
             exec:
               command: ["mc-monitor", "status"]
-            periodSeconds: 1
-            failureThreshold: 60 # 1 minute before considering the startup as failed
+            periodSeconds: {{ .checkInterval }}
+            failureThreshold: {{ div .failureThreshold.startup .checkInterval }}
+          {{- end }}

src/values.yaml

@@ -17,3 +17,15 @@ container:
 service:
   ports:
     nodePort: 30000
+
+# Health checks configuration.
+# If the server is deemed "unhealthy", it will be automatically restarted
+# to ensure high availability and minimize downtime.
+healthcheck:
+  # Time interval (in seconds) between consecutive health checks.
+  checkInterval: 1
+  # Time in seconds before the server is considered unhealthy.
+  # Must be a multiple of checkInterval.
+  failureThreshold:
+    startup: 60   # During startup phase.
+    liveness: 5   # During normal operation.