建议使用OpenResty 1.15.8.1或更高版本以获得最佳性能和稳定性
安装
- 安装luarocks
- 安装lua-resty-auto-ssl
luarocks install lua-resty-auto-ssl
- 生成默认证书
$ mkdir /etc/resty-auto-ssl
$ openssl req -new -newkey rsa:2048 -days 3650 -nodes -x509 -subj '/CN=sni-support-required-for-valid-ssl' -keyout /etc/ssl/resty-auto-ssl-fallback.key -out /etc/ssl/resty-auto-ssl-fallback.crt
配置
nginx.conf
为了避免不必要证书申请额度问题，需要定义all_domains，把你需要申请的域名加上即可。
...
resolver 8.8.8.8;
lua_shared_dict auto_ssl 1m;
lua_shared_dict auto_ssl_settings 64k;
init_by_lua_block {
local all_domains = "www.example.com";
auto_ssl = (require "resty.auto-ssl").new()
auto_ssl:set("allow_domain", function(domain)
return ngx.re.match(domain, all_domains, "ijo")
end)
auto_ssl:init()
}
init_worker_by_lua_block {
auto_ssl:init_worker()
}
server {
listen 8999;
client_body_buffer_size 128k;
client_max_body_size 128k;
location / {
content_by_lua_block {
auto_ssl:hook_server()
}
}
...
具体服务conf，比如：www.example.com.conf
server {
listen 443 ssl;
server_name www.example.com;
ssl_protocols TLSv1.2 TLSv1.3;
ssl_prefer_server_ciphers on;
ssl_ciphers ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!3DES:!MD5:!PSK;
add_header X-Xss-Protection 1;
ssl_session_cache shared:SSL:10m;
ssl_session_timeout 10m;
ssl_certificate /etc/ssl/resty-auto-ssl-fallback.crt;
ssl_certificate_key /etc/ssl/resty-auto-ssl-fallback.key;
ssl_certificate_by_lua_block {
auto_ssl:ssl_certificate()
}
location / {
...
}
}
server {
listen 80;
server_name www.example.com;
location / {
rewrite ^ https://www.example.com$request_uri?;
}
location /.well-known/acme-challenge/ {
content_by_lua_block {
auto_ssl:challenge_server()
}
}
}
生效
证书申请采用的是http自动验证方式，在重启nginx之前一定要先配置好域名DNS解析。
nginx -t
nginx -s reload
