Open WebUI

Deploy Open WebUI on Kubernetes — a self-hosted AI chat platform with Ollama and OpenAI-compatible backend support, RAG pipelines, multi-model conversations, and an extensible plugin system.

Key Features

• Ollama integration — connect to local or remote Ollama instances for open-source LLMs
• OpenAI-compatible API — works with OpenAI, Azure, Anthropic proxies, LiteLLM, and more
• SQLite or PostgreSQL — embedded SQLite for simple installs, PostgreSQL subchart for production
• Redis WebSocket coordination — required for multi-instance deployments
• RAG pipelines — retrieval-augmented generation with document uploads
• S3 backup — scheduled PostgreSQL backup to S3-compatible storage
• Ingress support — TLS via cert-manager with configurable ingress class

Installation

HTTPS repository:

helm repo add helmforge https://repo.helmforge.dev
helm repo update
helm install open-webui helmforge/open-webui

OCI registry:

helm install open-webui oci://ghcr.io/helmforgedev/helm/open-webui

Basic Example

openWebui:
  ollamaBaseUrl: http://ollama.default.svc:11434

ingress:
  enabled: true
  ingressClassName: traefik
  hosts:
    - host: chat.example.com
      paths:
        - path: /
          pathType: Prefix

Production Example

postgresql:
  enabled: true

redis:
  enabled: true

openWebui:
  ollamaBaseUrl: http://ollama.default.svc:11434
  openaiBaseUrl: https://api.openai.com/v1
  openaiExistingSecret: openai-credentials

persistence:
  size: 20Gi

ingress:
  enabled: true
  ingressClassName: traefik
  hosts:
    - host: chat.example.com
      paths:
        - path: /
          pathType: Prefix
  tls:
    - hosts:
        - chat.example.com
      secretName: open-webui-tls

Key Values

Key	Default	Description
openWebui.port	8080	Application port
openWebui.ollamaBaseUrl	""	Ollama backend URL
openWebui.openaiBaseUrl	""	OpenAI-compatible API base URL
openWebui.doNotTrack	true	Disable telemetry
database.mode	auto	Database mode: auto, sqlite, external
postgresql.enabled	false	Deploy PostgreSQL subchart
redis.enabled	false	Deploy Redis subchart
persistence.enabled	true	Persist /app/backend/data
persistence.size	10Gi	PVC size
ingress.enabled	false	Enable ingress
backup.enabled	false	Enable S3 backup CronJob

Operational Notes

• SQLite mode is single-instance only — no horizontal scaling
• PostgreSQL mode supports multiple replicas with Redis for WebSocket coordination
• the chart auto-generates a session secret key if not provided
• telemetry is disabled by default (DO_NOT_TRACK=true)

More Information

See the source code and full values reference on GitHub.