add readiness check for dokku

Signed-off-by: Peter Siegmund <developer@mars3142.org>

app.json

@@ -0,0 +1,14 @@
+{
+  "healthchecks": {
+    "web": [
+      {
+        "type":        "readiness",
+        "name":        "web check",
+        "description": "Checking if the app responds to the /actuator/health/readiness endpoint",
+        "path":        "/actuator/health/readiness",
+        "port": 8761,
+        "attempts": 3
+      }
+    ]
+  }
+}

src/main/resources/application.yaml

@@ -10,6 +10,12 @@ logging:
     com.netflix.eureka: OFF
     com.netflix.discovery: OFF
 
+management:
+  endpoint:
+    health:
+      probes:
+        enabled: true
+
 sentry:
   dsn: https://354321d371291036cffcdb5b1a72fd6e@o394865.ingest.us.sentry.io/4507718826262528
   environment: eureka-service