langfuse-k8s

This is a community-maintained repository that contains resources for deploying Langfuse on Kubernetes.

Helm Chart

We provide an Helm chart that helps you deploy Langfuse on Kubernetes. This Helm chart could use an external Postgres server or deploy one for you, thanks to Bitnami Postgres Helm chart.

Installation

helm repo add langfuse https://langfuse.github.io/langfuse-k8s
helm repo update
helm install langfuse langfuse/langfuse

Upgrading

helm repo update
helm upgrade langfuse langfuse/langfuse

Configuration

The following table lists the useful configurable parameters of the Langfuse chart and their default values.

Parameter	Description	Default
langfuse.nextauth.url	When deploying to production, set the nextauth.url value to the canonical URL of your site.	localhost:3000
langfuse.nextauth.secret	Used to encrypt the NextAuth.js JWT, and to hash email verification tokens.	changeme
langfuse.salt	Salt for API key hashing	changeme
langfuse.telemetryEnabled	Weither or not to enable telemetry (reports basic usage statistics of self-hosted instances to a centralized server).	true
langfuse.additionalEnv	Dict that allow addition of additional env variables	[]
service.type	Change the default k8s service type deployed with the application	ClusterIP
service.additionalLabels	Add additional annotations to the service deployed with the application	[]
ingress.enabled	Enable ingress for the application	false
ingress.annotations	Annotation to add the the deployed ingress	[]
postgresql.deploy	Enable postgres deployment (via Bitnami Helm Chart). If you want to use a postgres server already deployed (or a managed one), set this to false	true
postgresql.auth.username	Username to use to connect to the postgres database deployed with Langfuse. In case postgresql.deploy is set to true, the user will be created automatically.	postgres
postgresql.auth.password	Password to use to connect to the postgres database deployed with Langfuse. In case postgresql.deploy is set to true, the password will be set automatically.	postgres
postgresql.auth.database	Database name to use for Langfuse.	langfuse
postgresql.host	If postgresql.deploy is set to false, hostname of the external postgres server to use (mandatory)	nil
postgresql.directUrl	If postgresql.deploy is set to false, Connection string of your Postgres database used for database migrations. Use this if you want to use a different user for migrations or use connection pooling on DATABASE_URL. For large deployments, configure the database user with long timeouts as migrations might need a while to complete.	nil
postgresql.shadowDatabaseUrl	If your database user lacks the CREATE DATABASE permission, you must create a shadow database and configure the "SHADOW_DATABASE_URL". This is often the case if you use a Cloud database. Refer to the Prisma docs for detailed instructions.	nil
postgresql.primary.persistence.size	Disk request for the postgres database deployed with Langfuse. Effective only if postgresql.deploy is set to true	8Gi

Examples:

With an external Postgres server

langfuse:
  nextauth:
    url: localhost:3000
    secret: changeme
  salt: changeme
  telemetryEnabled: true
service:
  type: ClusterIP
  additionalLabels: []
ingress:
  enabled: false
  annotations: []
postgresql:
  deploy: false
  auth:
    username: postgres
    password: changeme
    database: langfuse
  host: my-external-postgres-server.com
  directUrl: postgres://user:password@my-external-postgres-server.com
  shadowDatabaseUrl: postgres://user:password@my-external-postgres-server.com

Deploy a Postgres server at the same time

langfuse:
  nextauth:
    url: localhost:3000
    secret: changeme
  salt: changeme
  telemetryEnabled: true
service:
  type: ClusterIP
ingress:
  enabled: false
postgresql:
  deploy: true
  auth:
    password: changeme

Repository Structure

• examples directory contains example yaml configurations
• charts/langfuse directory contains Helm chart for deploying Langfuse with an associated database

Please feel free to contribute any improvements or suggestions.

Langfuse deployment docs: https://langfuse.com/docs/deployment/self-host