项目地址：
halo-dev/halo

成品：
https://halo.006.cloudns.org

此教程让你的博客数据自动备份，避免数据丢失，没有小鸡/数据没有保障的可以使用教程搭建自己的博客

1.申请一个huggingface账号

https://huggingface.co

2.创建一个spaces

将代码放入其中并保存

FROM eclipse-temurin:21-jre

WORKDIR /opt/halo

ENV TZ=Asia/Shanghai
ENV JVM_OPTS="-Xmx256m -Xms256m"

RUN apt-get update && 
    apt-get install -y wget python3 python3-venv python3-pip tar gzip jq curl  && 
    apt-get clean && 
    rm -rf /var/lib/apt/lists/*

RUN curl -sL https://api.github.com/repos/halo-dev/halo/releases/latest | 
    jq -r '.assets[] | select(.name | test(".jar$")) | .browser_download_url' | 
    xargs curl -L -o halo.jar

RUN mkdir -p ~/.halo2

ENV VIRTUAL_ENV=/opt/venv
RUN python3 -m venv $VIRTUAL_ENV
ENV PATH="$VIRTUAL_ENV/bin:$PATH"
RUN pip install --no-cache-dir requests webdavclient3

COPY sync_data.sh /opt/halo/
RUN chmod +x /opt/halo/sync_data.sh

EXPOSE 8090

CMD ["/bin/sh", "-c", "/opt/halo/sync_data.sh & sleep 30 && java ${JVM_OPTS} -jar /opt/halo/halo.jar"]

在README.md中添加

app_port: 8090

3.创建sync_data.sh文件

名称为sync_data.sh，将代码放入其中并保存

#!/bin/bash

# 检查环境变量
if [[ -z "$WEBDAV_URL" ]] || [[ -z "$WEBDAV_USERNAME" ]] || [[ -z "$WEBDAV_PASSWORD" ]]; then
    echo "Starting without backup functionality - missing WEBDAV_URL, WEBDAV_USERNAME, or WEBDAV_PASSWORD"
    exec java ${JVM_OPTS} -jar /opt/halo/halo.jar
    exit 0
fi

# 设置备份路径
WEBDAV_BACKUP_PATH=${WEBDAV_BACKUP_PATH:-""}
FULL_WEBDAV_URL="${WEBDAV_URL}"
if [ -n "$WEBDAV_BACKUP_PATH" ]; then
    FULL_WEBDAV_URL="${WEBDAV_URL}/${WEBDAV_BACKUP_PATH}"
fi

# 激活虚拟环境
source /opt/venv/bin/activate

# 下载最新备份并恢复
restore_backup() {
    echo "开始从 WebDAV 下载最新备份..."
    python3 -c "
import sys
import os
import tarfile
import requests
import shutil
from webdav3.client import Client
options = {
    'webdav_hostname': '$FULL_WEBDAV_URL',
    'webdav_login': '$WEBDAV_USERNAME',
    'webdav_password': '$WEBDAV_PASSWORD'
}
client = Client(options)
backups = [file for file in client.list() if file.endswith('.tar.gz') and file.startswith('halo_backup_')]
if not backups:
    print('没有找到备份文件')
    sys.exit()
latest_backup = sorted(backups)[-1]
print(f'最新备份文件：{latest_backup}')
with requests.get(f'$FULL_WEBDAV_URL/{latest_backup}', auth=('$WEBDAV_USERNAME', '$WEBDAV_PASSWORD'), stream=True) as r:
    if r.status_code == 200:
        with open(f'/tmp/{latest_backup}', 'wb') as f:
            for chunk in r.iter_content(chunk_size=8192):
                f.write(chunk)
        print(f'成功下载备份文件到 /tmp/{latest_backup}')
        if os.path.exists(f'/tmp/{latest_backup}'):
            # 如果目录已存在，先删除它
            if os.path.exists(os.path.expanduser('~/.halo2')):
                shutil.rmtree(os.path.expanduser('~/.halo2'))
            os.makedirs(os.path.expanduser('~/.halo2'), exist_ok=True)
            
            # 解压备份文件
            with tarfile.open(f'/tmp/{latest_backup}', 'r:gz') as tar:
                tar.extractall(os.path.expanduser('~/.halo2'))
            
            print(f'成功从 {latest_backup} 恢复备份')
        else:
            print('下载的备份文件不存在')
    else:
        print(f'下载备份失败：{r.status_code}')
"
}

# 首次启动时下载最新备份
echo "Downloading latest backup from WebDAV..."
restore_backup

# 同步函数
sync_data() {
    while true; do
        echo "Starting sync process at $(date)"

        if [ -d ~/.halo2 ]; then
            timestamp=$(date +%Y%m%d_%H%M%S)
            backup_file="halo_backup_${timestamp}.tar.gz"

            # 压缩数据目录
            tar -czf "/tmp/${backup_file}" -C ~/.halo2 .

            # 上传新备份到WebDAV
            curl -u "$WEBDAV_USERNAME:$WEBDAV_PASSWORD" -T "/tmp/${backup_file}" "$FULL_WEBDAV_URL/${backup_file}"
            if [ $? -eq 0 ]; then
                echo "Successfully uploaded ${backup_file} to WebDAV"
            else
                echo "Failed to upload ${backup_file} to WebDAV"
            fi

            # 清理旧备份文件
            python3 -c "
import sys
from webdav3.client import Client
options = {
    'webdav_hostname': '$FULL_WEBDAV_URL',
    'webdav_login': '$WEBDAV_USERNAME',
    'webdav_password': '$WEBDAV_PASSWORD'
}
client = Client(options)
backups = [file for file in client.list() if file.endswith('.tar.gz') and file.startswith('halo_backup_')]
backups.sort()
if len(backups) > 5:
    to_delete = len(backups) - 5
    for file in backups[:to_delete]:
        client.clean(file)
        print(f'Successfully deleted {file}.')
else:
    print('Only {} backups found, no need to clean.'.format(len(backups)))
" 2>&1

            rm -f "/tmp/${backup_file}"
        else
            echo "Data directory does not exist yet, waiting for next sync..."
        fi

        SYNC_INTERVAL=${SYNC_INTERVAL:-600}
        echo "Next sync in ${SYNC_INTERVAL} seconds..."
        sleep $SYNC_INTERVAL
    done
}

# 启动同步进程
sync_data &

备份上限5份，同步时间默认600s

4.注册webdav并开启传输权限

https://infini-cloud.net/en

5.填入相关变量

WEBDAV_URL # webdav的网址，如：https://jike.teracloud.jp/dav  
WEBDAV_BACKUP_PATH  # 备份文件夹名（备份文件夹，需要自行在网盘中创建，如halo）
WEBDAV_USERNAME # 用户名
WEBDAV_PASSWORD  # 连接密码，第4步获取到的
SYNC_INTERVAL # 同步时间,默认600

6.在cloudflare进行反代(非必须)

创建一个worker，代码填入其中，将xxxx.hf.space替换为你自己

export default {
  async fetch(request, env) {
    const url = new URL(request.url);
    url.host = 'xxxx.hf.space'; 
    return fetch(new Request(url, request))
  }
}