简单粗暴的Caddy Server 使用介绍

Caddy是一个Go写的服务器软件,官方的宣传语“The HTTP/2 web server with automatic HTTPS”以及“Serve The Web Like It's 2016”简明表达了这个软件的优点和趋势,它拥有基本的apache或者nginx有的web server模块,同时还有一些很有特色的功能,比如:

HTTP/2
Automatic HTTPS
Multi-core
Websockets
Markdown
IPv6
Git
…...
用Caddy我们就可以很方便的部署一个Markdown文本作为静态网站访问,或者它的Git指令完成代码的自动化部署,当然它很大的特色就是它的语法非常简洁,比nginx还要简单,配置部署起来很方便,下面随便举几个例子吧。

对网站添加BasicAuth,用户名ryan,密码 12345

basicauth / ryan 12345

用CORS解决跨域问题

cors / {
    origin            http://allowedSite.com
    origin            http://anotherSite.org https://anotherSite.org
    methods           POST,PUT
    allow_credentials false
    max_age           3600
    allowed_headers   X-Custom-Header,X-Foobar
    exposed_headers   X-Something-Special,SomethingElse
}

IP过滤

ipfilter / {
    rule       block
    ip         212.10.15.0-255 213.10.15.0-10 5.23.4.24
    blockpage  /local/data/default.html
}

HTTPS 配置
tls ../cert.pem ../key.pem
实在太简单了配置起来,具体还有其他简洁到哭的指令可以看官方的User Guide,很快就刷完了。

既然Caddy自动部署https,而且是通过Let's Encrypt,那么就实践一下,本博客是用Ghost 搭建,Nginx代理的,现在就改用Caddy,并支持https,步骤大体如下:

证书申请请移步 Let's Encrypt
Caddy 安装很简单,直接下载 https://caddyserver.com/docs/getting-started
配置Caddyfile,看起来指令简洁明了

https://www.yuansir-web.com, http://www.yuansir-web.com, http://yuansir-web.com {
 redir https://yuansir-web.com{uri}
 tls [email protected]
}

https://yuansir-web.com {
 gzip
 errors {
  log /var/log/caddy/yuansir-web.error.log {
    size 50
    age 30
    keep 5
  }
 }
 log /var/log/caddy/yuansir-web.access.log
 tls [email protected]
 proxy / http://127.0.0.1:2368 {
  proxy_header X-Real-IP {remote}
  proxy_header HOST {host}
  proxy_header X-Forwarded-Proto {scheme}
 }
}

用supservisor来管理Caddy运行

[program:caddy]
command=/usr/bin/caddy -conf="/var/www/Caddyfile"
directory=/var/www  ; directory to cwd to before exec (def no cwd)
autostart=true    ; start at supervisord start (default: true)
autorestart=unexpected  ; whether/when to restart (default: unexpected)
startsecs=1     ; number of secs prog must stay running (def. 1)
startretries=3    ; max # of serial start failures (default 3)
exitcodes=0,2     ; 'expected' exit codes for process (default 0,2)
stopsignal=QUIT    ; signal used to kill process (default TERM)
stopwaitsecs=10    ; max num secs to wait b4 SIGKILL (default 10)
stopasgroup=false    ; send stop signal to the UNIX process group (default false)
user=www    ; setuid to this UNIX account to run the program
redirect_stderr=true   ; redirect proc stderr to stdout (default false)
stdout_logfile=/var/log/caddy.log  ; stdout log path, NONE for none; default AUTO
stderr_logfile=/var/log/caddyerr.log  ; stderr log path, NONE for none; default AUTO

将网站的静态资源CDN换成支持https的CDN
好了,就这么简单,Nginx切换成Caddy,并支持https了,真是多快好省。

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