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How to deploy DeepSeek Harness on Kubernetes with the Helm chart with DeepSeek Harness Docker

Run one DSH instance as a StatefulSet with persistent state and a workspace claim.

Short answer: Review the chart values, including the workspace.existingClaim setting if you want to mount an existing workspace PVC; then run helm lint --strict <chart-path> to confirm the chart passes strict checks; run helm install <release-name> <chart-path> -n <namespace> to deploy the chart. All steps.

Credentials. Provider secrets mounted into the pod give the agent access to paid model accounts, so limit who can read the namespace secrets.

Who it is forA platform engineer who needs DeepSeek Harness running in a Kubernetes cluster with its state kept across upgrades.

The problemA plain container restart or redeploy can lose profiles, sessions, and settings unless they live on persistent storage.

The outcomeA single-replica StatefulSet with a dsh-home PVC, a Headless Service, and a NetworkPolicy, validated with helm lint.

What you need first

  • Docker with Compose, or Rootless Podman 4.5 with podman-compose 1.6.0 or newer
  • A local project directory to mount as the workspace, or leave the default named volume
  • Model provider credentials to enter in the Settings page or supply as environment variables
  • A Kubernetes cluster and Helm for the chart deployment

Steps

  1. Review the chart values, including the workspace.existingClaim setting if you want to mount an existing workspace PVC. (inferred, check the README)
  2. Run helm lint --strict <chart-path> to confirm the chart passes strict checks. (inferred, check the README)
  3. Run helm install <release-name> <chart-path> -n <namespace> to deploy the chart. (inferred, check the README)
  4. Run kubectl get statefulset,pvc,svc,networkpolicy -n <namespace> to confirm the resources were created. (inferred, check the README)
  5. Use port-forward to reach the Web UI and confirm it responds before you configure models. (inferred, check the README)

Prompt for your agent

Using the Helm chart in runzhliu/deepseek-harness-docker, lint and install it into the namespace <namespace> as release <release-name>. Expected output: a StatefulSet with one replica, a dsh-home PVC, and a Headless Service. Verify that the pod reaches Ready and that the chart still shows exactly one replica.

Caveat. The chart is a single replica by design, and the README says adding replicas does not give high availability for this single-user runtime.

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Using the Deduped MCP, get the setup steps for runzhliu/deepseek-harness-docker and "Deploy DeepSeek Harness on Kubernetes with the Helm chart"

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