Monitoring

The MKE 4k monitoring setup is based on the kube-prometheus-stack, offering a comprehensive solution for collecting, storing, and visualizing metrics.

Monitoring tools

Detail for the MKE 4k monitor tools is provided in the following table:

Monitoring tool	Default state	Configuration key	Description
Prometheus	enabled	-	Collects and stores metrics
Grafana	enabled	monitoring.enableGrafana	Provides a web interface for viewing metrics and logs collected by Prometheus
cAdvisor	disabled	monitoring.enableCAdvisor	Provides additional container level metrics
OpsCare	disabled	monitoring.enableOpscare	(Under development) Supplies additional monitoring capabilities, such as Alertmanager

Prometheus

Prometheus is an open-source monitoring and alerting toolkit, designed for reliability and scalability, that collects and stores metrics as time series data. It offers powerful query capabilities and a flexible alerting system.

The Prometheus API is available at https://<mke4_url>/prometheus/

To access the Prometheus dashboard:

1. Port forward Prometheus:

   kubectl --namespace mke port-forward svc/prometheus-operated 9090
   

2. Navigate to http://localhost:9090.

Grafana

Grafana is an open-source monitoring platform that provides a rich set of tools for visualizing time-series data. It includes a variety of graph types and dashboards.

Grafana is enabled in MKE 4k by default and may be disabled through the mke4.yaml configuration file:

monitoring:
  enableGrafana: true

To access the Grafana dashboard:

1. Obtain the admin user password for the Grafana dashboard from the monitoring-grafana secret in the mke namespace.

   kubectl get secret monitoring-grafana -n mke -o jsonpath="{.data.admin-password}" | base64 --decode
   

2. Port forward Grafana:

   kubectl --namespace mke port-forward svc/monitoring-grafana 3000:80
   

3. Navigate to http://localhost:3000 to access the Welcome to Grafana login page.

4. Enter the default username admin into the Email or username field and type the password you retrieved from the monitoring-grafana secret into the Password field.

5. Click Log In.

cAdvisor

cAdvisor is an open-source tool that collects, aggregates, processes, and exports information in reference to running containers.

cAdvisor is disabled in MKE 4k by default. You can enable the tool through the mke4.yaml configuration file:

monitoring:
  enableCAdvisor: true

OpsCare (Under development)

Mirantis OpsCare is an advanced monitoring and alerting solution. Once it is integrated, Mirantis OpsCare will enhance the monitoring capabilities of MKE 4k by incorporating additional tools and features, such as [Prometheus

Disabled by default, you can enable Mirantis OpsCare through the mke4.yaml configuration file.

monitoring:
  enableOpscare: true