Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform designed to operate entirely offline. It supports various LLM runners like Ollama and OpenAI-compatible APIs, with built-in inference engine for RAG, making it a powerful AI deployment solution.
![image.png](/static/img/db2f85ecce74bb233dfe0ddaa3dc56a5.image.png)



- [github](https://github.com/open-webui/open-webui)
- [官网](https://openwebui.com/)
- [参考文档](https://docs.openwebui.com/)

# 启动
- 下载源码
- 配置文件：`cp -RPp .env.example .env`
- 下载前端依赖：根目录下 `npm install`
- 构建前端代码(注意 node 版本)：根目录下 `npm run build`
- 下载后端依赖：backend 目录下
  ```shell
  conda create --name open-webui python=3.11
  conda activate open-webui
  pip install -r requirements.txt -U
  ```
- 启动后端：backend 目录下 `sh start.sh`

# 遇到的问题

## Docker 部署
### 镜像构建失败
`The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0E98404D386FA1D9`

可能为 Docker 版本问题，升级 Docker 版本（尝试升级到 20.10.9 解决）
![image.png](/static/img/5e76f9d514d436fe0a97fea6fc1f9ae0.image.png)

### 镜像构建慢
修改源
```shell
RUN echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian bookworm main contrib non-free non-free-firmware" > /etc/apt/sources.list && \
    echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian bookworm-updates main contrib non-free non-free-firmware" >> /etc/apt/sources.list && \
    echo "deb http://mirrors.tuna.tsinghua.edu.cn/debian-security bookworm-security main contrib non-free non-free-firmware" >> /etc/apt/sources.list && \
    rm -rf /etc/apt/sources.list.d/* && \
    apt update && apt upgrade -y
```

# 参考
- [【GPG error golang 1.19】](https://blog.csdn.net/nanhai_happy/article/details/142636677)

Open WebUI 开发

Raspblock 视觉全向车

![image.png](/static/img/2be159235c7dba6298401cc7211957b9.image.png)


# 安装
按教程来即可
# 使用
由于我使用的树莓派5，使用官方提供的镜像时发现在树莓派5上不可用，只能自己安装树莓派官方镜像后，使用网关提供的脚本自己运行 python。

# 遇到的问题与解决方式
原本的教程中最新的是树莓派4b，买了最新的树莓派5之后，发现与之前的树莓派有不同，在使用 raspblock 时会报错
```log
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/serial/serialposix.py", line 322, in open
    self.fd = os.open(self.portstr, os.O_RDWR | os.O_NOCTTY | os.O_NONBLOCK)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: '/dev/ttyAMA0'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/ku/Documents/test.py", line 4, in <module>
    robot = Raspblock()
            ^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/Raspblock-0.0.1-py3.11.egg/Raspblock.py", line 12, in __init__
  File "/usr/lib/python3/dist-packages/serial/serialutil.py", line 244, in __init__
    self.open()
  File "/usr/lib/python3/dist-packages/serial/serialposix.py", line 325, in open
    raise SerialException(msg.errno, "could not open port {}: {}".format(self._port, msg))
serial.serialutil.SerialException: [Errno 2] could not open port /dev/ttyAMA0: [Errno 2] No such file or directory: '/dev/ttyAMA0'
Exception ignored in: <function Raspblock.__del__ at 0x7fff32f88c20>
Traceback (most recent call last):
  File "/usr/local/lib/python3.11/dist-packages/Raspblock-0.0.1-py3.11.egg/Raspblock.py", line 16, in __del__
AttributeError: 'Raspblock' object has no attribute 'ser'
```
解决方法：在配置文件中增加一行以打开ttyAMA0串口，修改 `/boot/firmware/config.txt`，添加一行 `dtoverlay=uart0`，保存后重启即可

# 参考
- [Raspblock视觉全向车](https://www.yahboom.com/study/Raspblock#xuanzhon_8)
- [树莓派5串口通信](https://blog.csdn.net/weixin_48662810/article/details/139300977)

树莓派小车

使用 bark，Android 可以使用 gotify~



## docker 部署

`docker run -dt --name bark -p 16009:8080 -v /disk/app/bark/data:/data finab/bark-server`

## ios 应用下载
下载 bark，添加服务器

![IMG_4836.PNG](/static/img/eb9cfee42c115c2595268127e7cf2f37.IMG_4836.PNG)

## 发送请求
curl https://bark.ioiox.com/your_key/标题/内容

更多参见 bark 应用里的例子

ios 消息推送

树莓派的存储卡空间不足，迁移到机械硬盘中~



- 关闭 `docker` 服务 `systemctl stop docker.socket`
- 迁移路径 `rsync -avzP /var/lib/docker  /disk/docker`
- 备份数据目录 `mv /var/lib/docker /var/lib/docker.bak`
- 添加软链接 `ln -s /disk/docker/ /var/lib/`
- 重启 `docker` 服务 `systemctl start docker`
- **确认 `docker` 正常**
- 删除备份目录 `rm -rf /var/lib/docker.bak`

docker 迁移

基于 docker 搭建 node-exporter + Prometheus + Grafana 服务器监控平台
![image.png](/static/img/a737c85315a34c42978f48da16a3d713.image.png)


# 安装
## 安装 node-export
`docker run -d --restart=always -p 9100:9100 prom/node-exporter`

验证：访问 http://服务器IP:9100/metrics

![image.png](/static/img/603f9177fe340e8e62ab80023d0a43f4.image.png)

## 安装 Prometheus
准备 `/disk/app/prometheus/prometheus.yml`，`IP地址` 替换成 node-exporter 所在服务器地址
```yml
global:
  scrape_interval: 60s
  evaluation_interval: 60s
 
scrape_configs:
  - job_name: prometheus
    static_configs:
      - targets: ['localhost:9090']
        labels:
          instance: prometheus
 
  - job_name: linux
    static_configs:
      - targets: ['IP地址:9100']
        labels:
          instance: localhost
```
创建 docker 容器 `docker run -d --restart=always -p 9090:9090 -v /disk/app/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml prom/prometheus`

验证：访问 http://IP地址:9090
![image.png](/static/img/f27d773f60e8bb4b9cf5232172b9436a.image.png)

## 安装 grafana
`docker run -d --restart=always --name grafana -p 3000:3000  grafana/grafana`

访问 192.168.1.3:3000，用户名密码都是 admin

添加数据源
![image.png](/static/img/7817ec5761d0b6a9c04e4af4d59bbebc.image.png)

下载ID为11074的[模板文件](https://grafana.com/grafana/dashboards/11074)
![image.png](/static/img/d9518468ce8790a340294635d815b3b0.image.png)
使用下载的模板文件创建仪表盘
![image.png](/static/img/58cb1399a5f3fb29b47bb7c61b73fabc.image.png)
效果
![image.png](/static/img/a737c85315a34c42978f48da16a3d713.image.png)