Metricbeat

Ship metrics from Kubernetes to Elasticsearch

By deploying metricbeat as a DaemonSet we ensure we get a running metricbeat daemon on each node of the cluster.

Everything is deployed under kube-system namespace, you can change that by updating YAML manifests under this folder.

We use official Beats Docker images, as they allow external files configuration, a ConfigMap is used for kubernetes specific settings. Check metricbeat-configmap.yaml for details.

Also, metricbeat-daemonset.yaml uses a set of environment variables to configure Elasticsearch output:

Variable	Default	Description
ELASTICSEARCH_HOST	elasticsearch	Elasticsearch host
ELASTICSEARCH_PORT	9200	Elasticsearch port
ELASTICSEARCH_USERNAME	elastic	Elasticsearch username for HTTP auth
ELASTICSEARCH_PASSWORD	changeme	Elasticsearch password

If there is an existing elasticsearch service in the kubernetes cluster these defaults will use it.