Question

Kubernetes prometheus storage location

I have installed kubernetes monitoring stack using this https://marketplace.digitalocean.com/apps/kubernetes-monitoring-stack, and works fine, but I want to know where is the storage location of prometheus data?

According to this tutorial https://www.digitalocean.com/community/tutorials/how-to-set-up-digitalocean-kubernetes-cluster-monitoring-with-helm-and-prometheus-operator I can specified prometheus storage to use block storage,

I’m just afraid if the data stored in my k8s cluster it will get bloated

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Moisey Uretsky • January 5, 2021

If you are following along with this tutorial then the storage for prometheus will be on block storage as defined in the YAML settings file.

https://www.digitalocean.com/community/tutorials/how-to-set-up-digitalocean-kubernetes-cluster-monitoring-with-helm-and-prometheus-operator

# Define persistent storage for Prometheus (PVC)
prometheus:
  prometheusSpec:
    storageSpec:
      volumeClaimTemplate:
        spec:
          accessModes: ["ReadWriteOnce"]
          storageClassName: do-block-storage
          resources:
            requests:
              storage: 5Gi

# Define persistent storage for Grafana (PVC)
grafana:
  # Set password for Grafana admin user
  adminPassword: your_admin_password
  persistence:
    enabled: true
    storageClassName: do-block-storage
    accessModes: ["ReadWriteOnce"]
    size: 5Gi

# Define persistent storage for Alertmanager (PVC)
alertmanager:
  alertmanagerSpec:
    storage:
      volumeClaimTemplate:
        spec:
          accessModes: ["ReadWriteOnce"]
          storageClassName: do-block-storage
          resources:
            requests:
              storage: 5Gi

# Change default node-exporter port
prometheus-node-exporter:
  service:
    port: 30206
    targetPort: 30206

# Disable Etcd metrics
kubeEtcd:
  enabled: false

# Disable Controller metrics
kubeControllerManager:
  enabled: false

# Disable Scheduler metrics
kubeScheduler:
  enabled: false

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