app/dify

Deploy Dify AI application development platform using Pigsty-managed PostgreSQL

The app/dify configuration template provides a reference configuration for self-hosting Dify AI application development platform, using Pigsty-managed PostgreSQL and pgvector as vector storage.

For more details, see Dify Deployment Tutorial

Overview

  • Config Name: app/dify
  • Node Count: Single node
  • Description: Deploy Dify using Pigsty-managed PostgreSQL
  • OS Distro: el8, el9, el10, d12, d13, u22, u24
  • OS Arch: x86_64, aarch64
  • Related: meta

Usage:

./configure -c app/dify [-i <primary_ip>]

Content

Source: pigsty/conf/app/dify.yml

---
#==============================================================#
# File      :   dify.yml
# Desc      :   pigsty config for running 1-node dify app
# Ctime     :   2025-02-24
# Mtime     :   2025-12-12
# Docs      :   https://doc.pgsty.com/app/odoo
# License   :   Apache-2.0 @ https://pigsty.io/docs/about/license/
# Copyright :   2018-2026  Ruohang Feng / Vonng ([email protected])
#==============================================================#
# Last Verified Dify Version: v1.8.1 on 2025-0908
# tutorial: https://doc.pgsty.com/app/dify
# how to use this template:
#
#  curl -fsSL https://repo.pigsty.io/get | bash; cd ~/pigsty
# ./bootstrap               # prepare local repo & ansible
# ./configure -c app/dify   # use this dify config template
# vi pigsty.yml             # IMPORTANT: CHANGE CREDENTIALS!!
# ./deploy.yml              # install pigsty & pgsql & minio
# ./docker.yml              # install docker & docker-compose
# ./app.yml                 # install dify with docker-compose
#
# To replace domain name:
#   sed -ie 's/dify.pigsty/dify.pigsty.cc/g' pigsty.yml


all:
  children:

    # the dify application
    dify:
      hosts: { 10.10.10.10: {} }
      vars:
        app: dify   # specify app name to be installed (in the apps)
        apps:       # define all applications
          dify:     # app name, should have corresponding ~/pigsty/app/dify folder
            file:   # data directory to be created
              - { path: /data/dify ,state: directory ,mode: 0755 }
            conf:   # override /opt/dify/.env config file

              # change domain, mirror, proxy, secret key
              NGINX_SERVER_NAME: dify.pigsty
              # A secret key for signing and encryption, gen with `openssl rand -base64 42` (CHANGE PASSWORD!)
              SECRET_KEY: sk-somerandomkey
              # expose DIFY nginx service with port 5001 by default
              DIFY_PORT: 5001
              # where to store dify files? the default is ./volume, we'll use another volume created above
              DIFY_DATA: /data/dify

              # proxy and mirror settings
              #PIP_MIRROR_URL: https://pypi.tuna.tsinghua.edu.cn/simple
              #SANDBOX_HTTP_PROXY: http://10.10.10.10:12345
              #SANDBOX_HTTPS_PROXY: http://10.10.10.10:12345

              # database credentials
              DB_USERNAME: dify
              DB_PASSWORD: difyai123456
              DB_HOST: 10.10.10.10
              DB_PORT: 5432
              DB_DATABASE: dify
              VECTOR_STORE: pgvector
              PGVECTOR_HOST: 10.10.10.10
              PGVECTOR_PORT: 5432
              PGVECTOR_USER: dify
              PGVECTOR_PASSWORD: difyai123456
              PGVECTOR_DATABASE: dify
              PGVECTOR_MIN_CONNECTION: 2
              PGVECTOR_MAX_CONNECTION: 10

    pg-meta:
      hosts: { 10.10.10.10: { pg_seq: 1, pg_role: primary } }
      vars:
        pg_cluster: pg-meta
        pg_users:
          - { name: dify ,password: difyai123456 ,pgbouncer: true ,roles: [ dbrole_admin ] ,superuser: true ,comment: dify superuser }
        pg_databases:
          - { name: dify        ,owner: dify ,revokeconn: true ,comment: dify main database  }
          - { name: dify_plugin ,owner: dify ,revokeconn: true ,comment: dify plugin_daemon database }
        pg_hba_rules:
          - { user: dify ,db: all ,addr: 172.17.0.0/16  ,auth: pwd ,title: 'allow dify access from local docker network' }
        node_crontab: [ '00 01 * * * postgres /pg/bin/pg-backup full' ] # make a full backup every 1am

    infra: { hosts: { 10.10.10.10: { infra_seq: 1 } } }
    etcd:  { hosts: { 10.10.10.10: { etcd_seq: 1 } }, vars: { etcd_cluster: etcd } }
    #minio: { hosts: { 10.10.10.10: { minio_seq: 1 } }, vars: { minio_cluster: minio } }

  vars:                               # global variables
    version: v4.0.0                   # pigsty version string
    admin_ip: 10.10.10.10             # admin node ip address
    region: default                   # upstream mirror region: default|china|europe
    node_tune: oltp                   # node tuning specs: oltp,olap,tiny,crit
    pg_conf: oltp.yml                 # pgsql tuning specs: {oltp,olap,tiny,crit}.yml

    docker_enabled: true              # enable docker on app group
    #docker_registry_mirrors: ["https://docker.1panel.live","https://docker.1ms.run","https://docker.xuanyuan.me","https://registry-1.docker.io"]

    proxy_env:                        # global proxy env when downloading packages & pull docker images
      no_proxy: "localhost,127.0.0.1,10.0.0.0/8,192.168.0.0/16,*.pigsty,*.aliyun.com,mirrors.*,*.tsinghua.edu.cn"
      #http_proxy:  127.0.0.1:12345 # add your proxy env here for downloading packages or pull images
      #https_proxy: 127.0.0.1:12345 # usually the proxy is format as http://user:[email protected]
      #all_proxy:   127.0.0.1:12345

    infra_portal:                     # domain names and upstream servers
      home   :  { domain: i.pigsty }
      #minio :  { domain: m.pigsty    ,endpoint: "${admin_ip}:9001" ,scheme: https ,websocket: true }
      dify:                            # nginx server config for dify
        domain: dify.pigsty            # REPLACE WITH YOUR OWN DOMAIN!
        endpoint: "10.10.10.10:5001"   # dify service endpoint: IP:PORT
        websocket: true                # add websocket support
        certbot: dify.pigsty           # certbot cert name, apply with `make cert`

    repo_enabled: false
    node_repo_modules: node,infra,pgsql
    pg_version: 18

    #----------------------------------------------#
    # PASSWORD : https://doc.pgsty.com/config/security
    #----------------------------------------------#
    grafana_admin_password: pigsty
    grafana_view_password: DBUser.Viewer
    pg_admin_password: DBUser.DBA
    pg_monitor_password: DBUser.Monitor
    pg_replication_password: DBUser.Replicator
    patroni_password: Patroni.API
    haproxy_admin_password: pigsty
    minio_secret_key: S3User.MinIO
    etcd_root_password: Etcd.Root
...

Explanation

The app/dify template provides a one-click deployment solution for Dify AI application development platform.

What is Dify:

  • Open-source LLM application development platform
  • Supports RAG, Agent, Workflow and other AI application modes
  • Provides visual Prompt orchestration and application building interface
  • Supports multiple LLM backends (OpenAI, Claude, local models, etc.)

Key Features:

  • Uses Pigsty-managed PostgreSQL instead of Dify’s built-in database
  • Uses pgvector as vector storage (replaces Weaviate/Qdrant)
  • Supports HTTPS and custom domain names
  • Data persisted to independent directory /data/dify

Access:

# Dify Web interface
http://dify.pigsty:5001

# Or via Nginx proxy
https://dify.pigsty

Use Cases:

  • Enterprise internal AI application development platform
  • RAG knowledge base Q&A systems
  • LLM-driven automated workflows
  • AI Agent development and deployment

Notes:

  • Must change SECRET_KEY, generate with openssl rand -base64 42
  • Configure LLM API keys (e.g., OpenAI API Key)
  • Docker network needs access to PostgreSQL (172.17.0.0/16 HBA rule configured)
  • Recommend configuring proxy to accelerate Python package downloads

Last Modified 2026-01-09: add supabase asciinema demo (693cfa8)