Langflow Component

Low-code AI agent and workflow platform with support for RAG, vector databases, and LLM integration.

Architecture

                Langflow App - Web UI + API server

                PostgreSQL - Flow storage (via CNPG link)

                Vector Store - RAG storage (via Qdrant link)

                LLM Backend - vLLM or Ollama link

Quick Reference

REQUIRED = Must be defined by user

Attribute	Example	Default	Effect
`namespace` REQ	`langflow`	-	K8s namespace
`port` REQ	`7860`	7860	Web UI port
`version`	`langflowai/langflow:1.7.1`	1.7.1	Full image with tag
`replicas`	`1`	1	Pod replicas
`cpu_request / cpu_limit`	`500m / 2000m`	500m/2000m	CPU resources
`mem_request / mem_limit`	`1Gi / 4Gi`	1Gi/4Gi	Memory resources
`pvc_enabled`	`true`	true	Persistent storage
`pvc_size`	`10Gi`	10Gi	Storage size
`auto_login`	`false`	false	Skip auth (dev only)
`superuser`	`admin`	admin	Admin username
`superuser_password`	`changeme`	-	Admin password
`secret_key`	`prod-secret`	changeme	Session security key

Link Variables (11 Total)

Variable	Link Type	Generated ENV
`__vllm`	langflow-vllm	OPENAI_API_BASE (router)
`__vllm_model`	langflow-model	OPENAI_API_BASE_[MODEL]
`__ollama`	langflow-ollama	OLLAMA_BASE_URL
`__qdrant`	langflow-qdrant	QDRANT_URL
`__qdrant_collection`	langflow-collection	QDRANT_COLLECTION, QDRANT_VECTOR_SIZE
`__cnpg`	langflow-db	LANGFLOW_DATABASE_URL
`__valkey`	langflow-valkey	LANGFLOW_REDIS_HOST/PORT/PASSWORD
`__prometheus`	prometheus-langflow	ServiceMonitor

Dynamic ENV Import

                LANGFLOW_VARIABLES_TO_GET_FROM_ENVIRONMENT

                Auto-populated list of all generated ENV vars.

                Langflow reads these into its component store at startup.

                Example: OPENAI_API_BASE,QDRANT_URL,LANGFLOW_DATABASE_URL

Generated Files

File	Condition	Contains
deployment.yaml	Always	Deployment + Service
rbac.yaml	Always	ServiceAccount
pvc.yaml	pvc_enabled=true	PersistentVolumeClaim
secret/cloud.env	Always	All auto-configured ENVs
doc/flows/*.json	Always	Example flow templates

Ports

Port	Purpose	Service
7860	Web UI + API	[name]:80 (external)