Stack Monitoring

You can enable Stack Monitoring on Elasticsearch, Kibana, Beats and Logstash to collect and ship their metrics and logs to a dedicated monitoring cluster.

To enable Stack Monitoring, simply reference the monitoring Elasticsearch cluster in the spec.monitoring section of their specification.

apiVersion: elasticsearch.k8s.elastic.co/v1
kind: Elasticsearch
metadata:
  name: monitored-sample
  namespace: production
spec:
  version: 8.16.1
  monitoring:
    metrics:
      elasticsearchRefs:
      - name: monitoring
        namespace: observability 
    logs:
      elasticsearchRefs:
      - name: monitoring
        namespace: observability 
  nodeSets:
  - name: default
    count: 1
    config:
      node.store.allow_mmap: false
---
apiVersion: kibana.k8s.elastic.co/v1
kind: Kibana
metadata:
  name: monitored-sample
  namespace: production
spec:
  version: 8.16.1
  elasticsearchRef:
    name: monitored-sample
    namespace: production 
  monitoring:
    metrics:
      elasticsearchRefs:
      - name: monitoring
        namespace: observability 
    logs:
      elasticsearchRefs:
      - name: monitoring
        namespace: observability 
  count: 1
---
apiVersion: beat.k8s.elastic.co/v1beta1
kind: Beat
metadata:
  name: monitored-sample
spec:
  type: filebeat
  version: 8.16.1
  monitoring:
    metrics:
      elasticsearchRefs:
      - name: monitoring
        namespace: observability 
    logs:
      elasticsearchRefs:
      - name: monitoring
        namespace: observability 
---
apiVersion: logstash.k8s.elastic.co/v1alpha1
kind: Logstash
metadata:
    name: monitored-sample
spec:
  version: 8.16.1
  monitoring:
    metrics:
      elasticsearchRefs:
      - name: monitoring
        namespace: observability 
    logs:
      elasticsearchRefs:
      - name: monitoring
        namespace: observability

The use of namespace is optional if the monitoring Elasticsearch cluster and the monitored Elastic Stack resource are running in the same namespace.

You can configure an Elasticsearch cluster to monitor itself.

If Stack Monitoring is configured for a Beat, but the corresponding Elasticsearch cluster is not monitored, the Kibana Stack Monitoring page will not show the Beats data.

If Logs Stack Monitoring is configured for a Beat, and custom container arguments (podTemplate.spec.containers[].args) include -e, which enables logging to stderr and disables log file output, this argument will be removed from the Pod to allow the Filebeat sidecar to consume the Beat’s log files.

Stack Monitoring for Logstash on ECK is only available for Logstash versions 8.7.0 and later.

The monitoring cluster must be managed by ECK in the same Kubernetes cluster as the monitored one.

You can send metrics and logs to two different Elasticsearch monitoring clusters.

You can also enable Stack Monitoring on Elasticsearch only or on Kibana only. In the latter case, Kibana will not be available on the Stack Monitoring Kibana page (check View monitoring data in Kibana).

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