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Nebius Observability Agent for Kubernetes is a Helm chart developed and maintained by Nebius AI Cloud, specifically designed for Managed Service for Kubernetes® clusters. Nebius Observability Agent for Kubernetes provides:
  • Out-of-the-box metrics collection with minimal configuration
  • Built-in metric enrichment (e.g., adds cluster ID and other metadata)
  • High reliability and tight integration with Nebius AI Cloud
  • Unified observability agent that can collect logs, metrics and traces

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Installation

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Basic installation

  1. Connect to your Managed Service for Kubernetes cluster.
  2. Install the Nebius Observability Agent for Kubernetes Helm chart: 
    helm install nebius-o11y-agent oci://cr.nebius.cloud/observability/public/nebius-o11y-agent-helm \
  --version $(curl https://nebius-o11y-agent.storage.eu-north1.nebius.cloud/nebius-o11y-agent-helm/latest-release) \
  --namespace observability --create-namespace
    To use a specific agent version, change the --version value, for example: 
    helm install nebius-o11y-agent oci://cr.nebius.cloud/observability/public/nebius-o11y-agent-helm \
  --version 1.0.1 \
  --namespace observability --create-namespace
  3. Check the installation: 
    kubectl get pods --namespace observability

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Installation with custom configuration

To customize the agent configuration, create a values.yaml file and install the agent with custom settings: 
helm install nebius-o11y-agent oci://cr.nebius.cloud/observability/public/nebius-o11y-agent-helm \
  --version $(curl https://nebius-o11y-agent.storage.eu-north1.nebius.cloud/nebius-o11y-agent-helm/latest-release) \
  --namespace observability --create-namespace \
  --values values.yaml

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Configuration

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Basic configuration

You can customize the Nebius Observability Agent for Kubernetes behavior by creating a values.yaml file: 
config:
  logs:
    enabled: true
    collectAgentLogs: false
    excludedNamespaces:
      - kube-system

  metrics:
    enabled: true
    collectAgentMetrics: false
    collectK8sClusterMetrics: false

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Configuration options

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Log collection settings

  • config.logs.enabled: Enable or disable log collection. Default: true.
  • config.logs.collectAgentLogs: An option to collect logs from the Nebius Observability Agent for Kubernetes itself. Default: false.
  • config.logs.excludedNamespaces: List of namespaces to exclude from log collection.

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Metrics collection settings

  • config.metrics.enabled: Enable or disable metrics collection. Default: true.
  • config.metrics.collectAgentMetrics: An option to collect metrics from the Nebius Observability Agent for Kubernetes itself. Default: false.
  • config.metrics.collectK8sClusterMetrics: An option to collect Kubernetes cluster-level metrics. Default: false.
  • config.metrics.excludedNamespaces: List of namespaces to exclude from metrics collection.

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Traces collection settings

  • config.traces.enabled: Enable or disable trace collection. Default: true.
When traces are enabled, the agent exposes an OTLP endpoint for receiving traces from your applications: 
nebius-observability-agent.<namespace>.svc.cluster.local:4317
Where <namespace> is the namespace where the agent is installed (e.g., observability).

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Logs-only configuration

To collect only logs, configure the values.yaml file in the following way: 
config:
  logs:
    enabled: true
    collectAgentLogs: false
    excludedNamespaces:
      - kube-system

  metrics:
    enabled: false

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Metrics-only configuration

To collect only metrics, configure the values.yaml file in the following way: 
config:
  logs:
    enabled: false

  metrics:
    enabled: true
    collectAgentMetrics: false
    collectK8sClusterMetrics: false

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Combined logs and metrics configuration

To collect both logs and metrics, configure the values.yaml file in the following way: 
config:
  logs:
    enabled: true
    collectAgentLogs: false
    excludedNamespaces:
      - kube-system

  metrics:
    enabled: true
    collectAgentMetrics: false
    collectK8sClusterMetrics: false

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Traces-only configuration

To collect only traces, configure the values.yaml file in the following way: 
config:
  logs:
    enabled: false

  metrics:
    enabled: false

  traces:
    enabled: true

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Full observability configuration

To collect logs, metrics and traces, configure the values.yaml file in the following way: 
config:
  logs:
    enabled: true
    collectAgentLogs: false
    excludedNamespaces:
      - kube-system

  metrics:
    enabled: true
    collectAgentMetrics: false
    collectK8sClusterMetrics: false

  traces:
    enabled: true

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Namespace exclusions

By default, the agent excludes the kube-system namespace to avoid collecting system-level logs and metrics. You can exclude additional namespaces by adding them to the excludedNamespaces list: 
config:
  logs:
    excludedNamespaces:
      - kube-system
      - monitoring
      - cert-manager
      - istio-system

  metrics:
    excludedNamespaces:
      - kube-system
      - monitoring
      - cert-manager
      - istio-system

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Updating the agent

To update the Nebius Observability Agent for Kubernetes to a newer version, use the following command: 
helm upgrade nebius-o11y-agent oci://cr.nebius.cloud/observability/public/nebius-o11y-agent-helm \
  --version $(curl https://nebius-o11y-agent.storage.eu-north1.nebius.cloud/nebius-o11y-agent-helm/latest-release) \
  --namespace observability \
  --values values.yaml

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Uninstalling the agent

To remove the Nebius Observability Agent for Kubernetes, use the following command: 
helm uninstall nebius-o11y-agent --namespace observability

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Troubleshooting

If you encounter issues with the agent:
  1. Check the agent pod status: 
    kubectl get pods --namespace observability
kubectl describe pod <Pod_name> --namespace observability
  2. View agent logs: 
    kubectl logs <Pod_name> --namespace observability
  3. Verify the configuration: 
    helm get values nebius-o11y-agent --namespace observability

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See also