# 本地源码启动
### 前置条件
| 操作系统 | 软件 | 说明 |
| -------------------------- | -------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| macOS 10.14 or later | Docker Desktop | 将 Docker 虚拟机(VM)设置为使用至少 2 个虚拟 CPU(vCPU)和 8 GB 的初始内存。否则,安装可能会失败。有关更多信息,请参阅[在 Mac 上安装 Docker Desktop](https://docs.docker.com/desktop/mac/install/)。 |
| Linux platforms |
Docker 19.03 or later
Docker Compose 1.25.1 or later
| 请参阅[安装 Docker](https://docs.docker.com/engine/install/) 和[安装 Docker Compose](https://docs.docker.com/compose/install/) 以获取更多信息。 |
| Windows with WSL 2 enabled | Docker Desktop | 我们建议将源代码和其他数据绑定到 Linux 容器中时,将其存储在 Linux 文件系统中,而不是 Windows 文件系统中。有关更多信息,请参阅[使用 WSL 2 后端在 Windows 上安装 Docker Desktop](https://docs.docker.com/desktop/windows/install/#wsl-2-backend)。 |
> 若需要使用 OpenAI TTS,需要在系统中安装 FFmpeg 才可正常使用,详情可参考:[Link](https://docs.dify.ai/v/zh-hans/learn-more/faq/install-faq#id-15.-wen-ben-zhuan-yu-yin-yu-dao-zhe-ge-cuo-wu-zen-me-ban)。
Clone Dify 代码:
```Bash
git clone https://github.com/langgenius/dify.git
```
在启用业务服务之前,我们需要先部署 PostgresSQL / Redis / Weaviate(如果本地没有的话),可以通过以下命令启动:
```Bash
cd docker
docker compose -f docker-compose.middleware.yaml up -d
```
***
### 服务端部署
* API 接口服务
* Worker 异步队列消费服务
#### 安装基础环境
服务端启动需要使用到 Python 3.10.x,推荐使用 [Anaconda](https://docs.anaconda.com/free/anaconda/install/) 来快速安装 Python 环境,内部已包含 pip 包管理工具。
```Bash
# 创建名为 dify 的 Python 3.10 环境
conda create --name dify python=3.10
# 切换至 dify Python 环境
conda activate dify
```
#### 启动步骤
1. 进入 api 目录
```
cd api
```
2. 复制环境变量配置文件
```
cp .env.example .env
```
3. 生成随机密钥,并替换 `.env` 中 `SECRET_KEY` 的值
```
openssl rand -base64 42
sed -i 's/SECRET_KEY=.*/SECRET_KEY=/' .env
```
4. 安装依赖包
```
pip install -r requirements.txt
```
5. 执行数据库迁移
将数据库结构迁移至最新版本。
```
flask db upgrade
```
6. 启动 API 服务
```
flask run --host 0.0.0.0 --port=5001 --debug
```
正确输出:
```
* Debug mode: on
INFO:werkzeug:WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
* Running on all addresses (0.0.0.0)
* Running on http://127.0.0.1:5001
INFO:werkzeug:Press CTRL+C to quit
INFO:werkzeug: * Restarting with stat
WARNING:werkzeug: * Debugger is active!
INFO:werkzeug: * Debugger PIN: 695-801-919
```
7. 启动 Worker 服务
用于消费异步队列任务,如数据集文件导入、更新数据集文档等异步操作。 Linux / MacOS 启动:
```
celery -A app.celery worker -P gevent -c 1 -Q dataset,generation,mail --loglevel INFO
```
如果使用 Windows 系统启动,请替换为该命令:
```
celery -A app.celery worker -P solo --without-gossip --without-mingle -Q dataset,generation,mail --loglevel INFO
```
正确输出:
```
-------------- celery@TAKATOST.lan v5.2.7 (dawn-chorus)
--- ***** -----
-- ******* ---- macOS-10.16-x86_64-i386-64bit 2023-07-31 12:58:08
- *** --- * ---
- ** ---------- [config]
- ** ---------- .> app: app:0x7fb568572a10
- ** ---------- .> transport: redis://:**@localhost:6379/1
- ** ---------- .> results: postgresql://postgres:**@localhost:5432/dify
- *** --- * --- .> concurrency: 1 (gevent)
-- ******* ---- .> task events: OFF (enable -E to monitor tasks in this worker)
--- ***** -----
-------------- [queues]
.> dataset exchange=dataset(direct) key=dataset
.> generation exchange=generation(direct) key=generation
.> mail exchange=mail(direct) key=mail
[tasks]
. tasks.add_document_to_index_task.add_document_to_index_task
. tasks.clean_dataset_task.clean_dataset_task
. tasks.clean_document_task.clean_document_task
. tasks.clean_notion_document_task.clean_notion_document_task
. tasks.create_segment_to_index_task.create_segment_to_index_task
. tasks.deal_dataset_vector_index_task.deal_dataset_vector_index_task
. tasks.document_indexing_sync_task.document_indexing_sync_task
. tasks.document_indexing_task.document_indexing_task
. tasks.document_indexing_update_task.document_indexing_update_task
. tasks.enable_segment_to_index_task.enable_segment_to_index_task
. tasks.generate_conversation_summary_task.generate_conversation_summary_task
. tasks.mail_invite_member_task.send_invite_member_mail_task
. tasks.remove_document_from_index_task.remove_document_from_index_task
. tasks.remove_segment_from_index_task.remove_segment_from_index_task
. tasks.update_segment_index_task.update_segment_index_task
. tasks.update_segment_keyword_index_task.update_segment_keyword_index_task
[2023-07-31 12:58:08,831: INFO/MainProcess] Connected to redis://:**@localhost:6379/1
[2023-07-31 12:58:08,840: INFO/MainProcess] mingle: searching for neighbors
[2023-07-31 12:58:09,873: INFO/MainProcess] mingle: all alone
[2023-07-31 12:58:09,886: INFO/MainProcess] pidbox: Connected to redis://:**@localhost:6379/1.
[2023-07-31 12:58:09,890: INFO/MainProcess] celery@TAKATOST.lan ready.
```
***
### 前端页面部署
Web 前端客户端页面服务
#### 安装基础环境
Web 前端服务启动需要用到 [Node.js v18.x (LTS)](http://nodejs.org) 、[NPM 版本 8.x.x ](https://www.npmjs.com/)或 [Yarn](https://yarnpkg.com/)。
* 安装 NodeJS + NPM
进入 https://nodejs.org/en/download,选择对应操作系统的 v18.x 以上的安装包下载并安装,建议 stable 版本,已自带 NPM。
#### 启动步骤
1. 进入 web 目录
```
cd web
```
2. 安装依赖包
```
npm install
```
3. 配置环境变量。在当前目录下创建文件 `.env.local`,并复制`.env.example`中的内容。根据需求修改这些环境变量的值:
```
# For production release, change this to PRODUCTION
NEXT_PUBLIC_DEPLOY_ENV=DEVELOPMENT
# The deployment edition, SELF_HOSTED
NEXT_PUBLIC_EDITION=SELF_HOSTED
# The base URL of console application, refers to the Console base URL of WEB service if console domain is
# different from api or web app domain.
# example: http://cloud.dify.ai/console/api
NEXT_PUBLIC_API_PREFIX=http://localhost:5001/console/api
# The URL for Web APP, refers to the Web App base URL of WEB service if web app domain is different from
# console or api domain.
# example: http://udify.app/api
NEXT_PUBLIC_PUBLIC_API_PREFIX=http://localhost:5001/api
# SENTRY
NEXT_PUBLIC_SENTRY_DSN=
NEXT_PUBLIC_SENTRY_ORG=
NEXT_PUBLIC_SENTRY_PROJECT=
```
4. 构建代码
```
npm run build
```
5. 启动 web 服务
```
npm run start
# or
yarn start
# or
pnpm start
```
正常启动后,终端会输出如下信息:
```
ready - started server on 0.0.0.0:3000, url: http://localhost:3000
warn - You have enabled experimental feature (appDir) in next.config.js.
warn - Experimental features are not covered by semver, and may cause unexpected or broken application behavior. Use at your own risk.
info - Thank you for testing `appDir` please leave your feedback at https://nextjs.link/app-feedback
```
### 访问 Dify
最后,访问 http://127.0.0.1:3000 即可使用本地部署的 Dify。