Added logging via Filebeat -> Logstash

filebeat/configmap.yaml

@@ -0,0 +1,41 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: filebeat-config
+  namespace: app-notifications
+data:
+  filebeat.yml: |
+    filebeat.autodiscover:
+      providers:
+        - type: kubernetes
+          node: ${NODE_NAME}
+          hints.enabled: true
+          templates:
+            - condition:
+                equals:
+                  kubernetes.namespace: "app-notifications"
+              config:
+                - type: container
+                  paths:
+                    - /var/log/containers/*_app-notifications_*.log
+
+    processors:
+      - add_kubernetes_metadata:
+          in_cluster: true
+      - drop_event:
+          when:
+            not:
+              or:
+                - regexp:
+                    kubernetes.pod.name: "^backend-.*"
+                - regexp:
+                    kubernetes.pod.name: "^service-.*"
+                - regexp:
+                    kubernetes.pod.name: "^mysql-.*"
+                - regexp:
+                    kubernetes.pod.name: "^rabbitmq-.*"
+
+    logging.level: info
+
+    output.logstash:
+      hosts: ["logstash.app-notifications.svc.cluster.local:5044"]