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Operator reference

Kubernetes

Deploy Nexus with Helm

Before you begin

This reference describes the underlying platform. Use a Nexus school release with its school membership, class policy, and cost controls. Installing a base engine alone does not add those controls.

Check out our Resourcing Guide before getting started.

Guide#

The Nexus Helm chart packages all the required services (API, web, PostgreSQL, Vespa, etc.) into a single deployment. By default, persistent volumes will be created for stateful services (e.g. PostgreSQL, Vespa).

Add the Nexus Helm repository#

  helm repo add onyx https://onyx-dot-app.github.io/onyx/
  helm repo update
  helm search repo onyx

Install Nexus#

Install into its own namespace (recommended):

  kubectl create namespace onyx
  helm install onyx onyx/onyx -n onyx

This will pull the latest Nexus chart and deploy all dependencies.

Verify the installation#

  helm list -n onyx
  kubectl get pods -n onyx

Wait until all pods are in a Running state before accessing Nexus.

Access Nexus#

By default, the chart exposes Nexus via a Kubernetes Service. For local testing, you can port-forward:

  kubectl -n onyx port-forward service/onyx-nginx 8080:80

Then open http://localhost:8080.

Configure Nexus#

Configure your deployment by modifying the values.yaml file in the onyx/deployment/helm/charts/onyx directory.

You'll need to restart Nexus after changing any values.yaml variables.

  helm upgrade onyx onyx/onyx -n onyx -f deployment/helm/charts/onyx/values.yaml

See the Helm chart README for advanced options such as running as non-root and testing with Kind.

Enabling Nexus Craft#

Craft adds per-user sandbox pods, scoped RBAC, NetworkPolicies, an egress proxy, and a Scheduled Task worker to the Helm deployment.

Deploy Craft on Kubernetes#

Prepare sandbox nodes and authentication, configure Helm, plan capacity, and verify the runtime.

Next Steps#

Configure Authentication#

Set up authentication for your Nexus deployment with OAuth, OIDC, or SAML.

More Nexus Configuration Options#

Learn about all available configuration options for your Nexus deployment.

NEXUS

Nexus helps students think, practice, and learn, with teachers guiding AI use.

[ Support ]

[ NARB TECHNOLOGY INC. ]

Nexus is a school AI platform by narb Technology Inc. · 16192 Coastal Hwy, Lewes, DE 19958

© 2026 narb Technology Inc.

Nexus

Nexus helps schools make room for questions, practice, and reflection — with teacher guidance in view.

[ Contact us through e-mail ]

© 2026 narb Technology Inc.

NEXUS

Nexus helps students think, practice, and learn, with teachers guiding AI use.

[ Support ]

[ NARB TECHNOLOGY INC. ]

Nexus is a school AI platform by narb Technology Inc.

© 2026 narb Technology Inc.