feat 增加 caddy 示例安全反向代理

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yangjianbo
2025-12-27 21:30:14 +08:00
parent 3a8dbf5a99
commit 3252c378aa

184
deploy/Caddyfile Normal file
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# =============================================================================
# Sub2API Caddy Reverse Proxy Configuration (宿主机部署)
# =============================================================================
# 使用方法:
# 1. 安装 Caddy: https://caddyserver.com/docs/install
# 2. 修改下方 example.com 为你的域名
# 3. 确保域名 DNS 已指向服务器
# 4. 复制配置: sudo cp Caddyfile /etc/caddy/Caddyfile
# 5. 重载配置: sudo systemctl reload caddy
#
# Caddy 会自动申请和续期 Let's Encrypt SSL 证书
# =============================================================================
# 全局配置
{
# Let's Encrypt 邮箱通知
email admin@example.com
# 服务器配置
servers {
# 启用 HTTP/2 和 HTTP/3
protocols h1 h2 h3
# 超时配置
timeouts {
read_body 30s
read_header 10s
write 60s
idle 120s
}
}
}
# 修改为你的域名
example.com {
# =========================================================================
# TLS 安全配置
# =========================================================================
tls {
# 仅使用 TLS 1.2 和 1.3
protocols tls1.2 tls1.3
# 优先使用的加密套件
ciphers TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
}
# =========================================================================
# 反向代理配置
# =========================================================================
reverse_proxy localhost:8080 {
# 健康检查
health_uri /health
health_interval 30s
health_timeout 10s
health_status 200
# 负载均衡策略(单节点可忽略,多节点时有用)
lb_policy round_robin
lb_try_duration 5s
lb_try_interval 250ms
# 传递真实客户端信息
# 兼容 Cloudflare 和直连:后端应优先读取 CF-Connecting-IP其次 X-Real-IP
header_up X-Real-IP {remote_host}
header_up X-Forwarded-For {remote_host}
header_up X-Forwarded-Proto {scheme}
header_up X-Forwarded-Host {host}
# 保留 Cloudflare 原始头(如果存在)
# 后端获取 IP 的优先级建议: CF-Connecting-IP → X-Real-IP → X-Forwarded-For
header_up CF-Connecting-IP {http.request.header.CF-Connecting-IP}
# 连接池优化
transport http {
keepalive 120s
keepalive_idle_conns 256
read_buffer 16KB
write_buffer 16KB
compression off
}
# 故障转移
fail_duration 30s
max_fails 3
unhealthy_status 500 502 503 504
}
# =========================================================================
# 压缩配置
# =========================================================================
encode {
zstd
gzip 6
minimum_length 256
match {
header Content-Type text/*
header Content-Type application/json*
header Content-Type application/javascript*
header Content-Type application/xml*
header Content-Type application/rss+xml*
header Content-Type image/svg+xml*
}
}
# =========================================================================
# 速率限制 (需要 caddy-ratelimit 插件)
# 如未安装插件,请注释掉此段
# =========================================================================
# rate_limit {
# zone api {
# key {remote_host}
# events 100
# window 1m
# }
# }
# =========================================================================
# 安全响应头
# =========================================================================
header {
# 防止点击劫持
X-Frame-Options "SAMEORIGIN"
# XSS 保护
X-XSS-Protection "1; mode=block"
# 防止 MIME 类型嗅探
X-Content-Type-Options "nosniff"
# 引用策略
Referrer-Policy "strict-origin-when-cross-origin"
# HSTS - 强制 HTTPS (max-age=1年)
Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
# 内容安全策略 (根据需要调整)
# Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self' data:; connect-src 'self' https:;"
# 权限策略
Permissions-Policy "accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=()"
# 跨域资源策略
Cross-Origin-Opener-Policy "same-origin"
Cross-Origin-Embedder-Policy "require-corp"
Cross-Origin-Resource-Policy "same-origin"
# 移除敏感头
-Server
-X-Powered-By
}
# =========================================================================
# 请求大小限制 (防止大文件攻击)
# =========================================================================
request_body {
max_size 100MB
}
# =========================================================================
# 日志配置
# =========================================================================
log {
output file /var/log/caddy/sub2api.log {
roll_size 50mb
roll_keep 10
roll_keep_for 720h
}
format json
level INFO
}
# =========================================================================
# 错误处理
# =========================================================================
handle_errors {
respond "{err.status_code} {err.status_text}"
}
}
# =============================================================================
# HTTP 重定向到 HTTPS (Caddy 默认自动处理,此处显式声明)
# =============================================================================
; http://example.com {
; redir https://{host}{uri} permanent
; }