Caddy自建ip查询

  1. 配置DNS的A和AAAA的解析
  2. 编辑/etc/caddy/Caddyfile
ipv4.xxx.com, ipv6.xxx.com {
	templates
	respond "{{.RemoteIP}}"
}

DDNS脚本

编辑/root/.cf/cf-ddns.sh

#!/bin/bash

# CHANGE THESE
auth_token="xxx" # found in cloudflare account settings
zone_name="xxx.com"
record_name="xxx.xxx.com"

# MAYBE CHANGE THESE
ip=$(curl -s http://ipv4.xxx.com)
ip_file=".cf/ip.txt"
id_file=".cf/cloudflare.ids"
log_file=".cf/cloudflare.log"

# LOGGER
log() {
    if [ "$1" ]; then
        echo -e "[$(date)] - $1" >> $log_file
    fi
}

# SCRIPT START
log "Check Initiated"

if [ -f $ip_file ]; then
    old_ip=$(cat $ip_file)
    if [ $ip == $old_ip ]; then
        echo "IP has not changed."
        exit 0
    fi
fi

if [ -f $id_file ] && [ $(wc -l $id_file | cut -d " " -f 1) == 2 ]; then
    zone_identifier=$(head -1 $id_file)
    record_identifier=$(tail -1 $id_file)
else
    zone_identifier=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones?name=$zone_name" -H "Authorization: Bearer $auth_token" -H "Content-Type: application/json" | grep -Po '(?<="id":")[^"]*' | head -1 )
    record_identifier=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records?name=$record_name" -H "Authorization: Bearer $auth_token" -H "Content-Type: application/json"  | grep -Po '(?<="id":")[^"]*')
    echo "$zone_identifier" > $id_file
    echo "$record_identifier" >> $id_file
fi

update=$(curl -s -X PUT "https://api.cloudflare.com/client/v4/zones/$zone_identifier/dns_records/$record_identifier" -H "Authorization: Bearer $auth_token" -H "Content-Type: application/json" --data "{\"id\":\"$zone_identifier\",\"type\":\"A\",\"name\":\"$record_name\",\"content\":\"$ip\"}")

if [[ $update == *"\"success\":false"* ]]; then
    message="API UPDATE FAILED. DUMPING RESULTS:\n$update"
    log "$message"
    echo -e "$message"
    exit 1 
else
    message="IP changed to: $ip"
    echo "$ip" > $ip_file
    log "$message"
    echo "$message"
fi

设置

输入crontab -e，添加

// 无日志
*/2 * * * * /root/cf-v4-ddns.sh >/dev/null 2>&1

//有日志
*/2 * * * * /root/cf-v4-ddns.sh >> /root/.cf/cf-ddns.log 2>&1

参考