spring-ai/rag/src/main/resources/application.yml

spring:
  application:
    name: spring-ai-rag
  threads:
    virtual:
      enabled: true
  datasource:
    url: ${RAG_PG_URL:jdbc:postgresql://localhost:5432/ragdb}
    username: ${RAG_PG_USER:raguser}
    password: ${RAG_PG_PASSWORD:ragpass}
  ai:
    openai:
      api-key: ${OPENAI_API_KEY}
      # In 2.0.1 the "options" level (chat.options.model) is marked deprecated in the jars' metadata; the
      # settings now sit directly under chat: and embedding:. Spring Boot ignores keys it does not know,
      # so a misspelt key fails nothing: ConfigKeysTest checks every spring.ai key against the jars.
      chat:
        model: gpt-4o
        temperature: 0.1
      embedding:
        model: text-embedding-3-small
    vectorstore:
      pgvector:
        schema-name: rag
        table-name: document_chunks
        index-type: HNSW
        distance-type: COSINE_DISTANCE
        dimensions: 1536
        # false: the schema comes from init.sql, not from the application.
        initialize-schema: false

rag:
  retrieval:
    top-k: 20
    similarity-threshold: 0.0
  rerank:
    top-n: 5
  chunking:
    chunk-size: 512
    min-chunk-size-chars: 350

management:
  endpoints:
    web:
      exposure:
        include: health, prometheus