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openresty使用文档

2022-06-27 05:41:00 【手里没有王】

1.下载安装

1.1下载

wget https://openresty.org/package/centos/openresty.repo
sudo mv openresty.repo /etc/yum.repos.d/
sudo yum check-update

1.2安装

sudo yum install -y openresty
sudo yum install -y openresty-resty

2.启动

2.1创建目录

mkdir -p /opt/data/openresty/www/{logs,conf}

2.2创建配置文件

[[email protected] opt] vi /opt/data/openresty/www/conf/nginx.conf

worker_processes  1;
error_log logs/error.log;
events {
    worker_connections 1024;
}
http {
     lua_code_cache off;
     charset 'utf-8';
     add_header Access-Control-Allow-Origin *;
    server {
        listen 9000;
        location / {
            default_type text/html;
            content_by_lua 'ngx.say("<p>Hello, World!</p>")';
        }
    }
}

2.3启动

[[email protected] opt]# /usr/local/openresty/nginx/sbin/nginx -p /opt/data/openresty/www/ -c /opt/data/openresty/www/conf/nginx.conf
nginx: [alert] lua_code_cache is off; this will hurt performance in /opt/data/openresty/www/conf/nginx.conf:7

# ===============================================================================
或者
/usr/local/openresty/nginx/sbin/nginx -p `pwd`/ -c conf/nginx.conf
# ==================================================================================

3.验证

3.1查看配置

[[email protected] lua]# openresty -V
nginx version: openresty/1.21.4.1
built by gcc 10.2.1 20200804 (Red Hat 10.2.1-2) (GCC)
built with OpenSSL 1.1.1n  15 Mar 2022
TLS SNI support enabled
configure arguments: --prefix=/usr/local/openresty/nginx --with-cc-opt='-O2 -DNGX_LUA_ABORT_AT_PANIC -I/usr/local/openresty/zlib/include -I/usr/local/openresty/pcre/include -I/usr/local/openresty/openssl111/include' --add-module=../ngx_devel_kit-0.3.1 --add-module=../echo-nginx-module-0.62 --add-module=../xss-nginx-module-0.06 --add-module=../ngx_coolkit-0.2 --add-module=../set-misc-nginx-module-0.33 --add-module=../form-input-nginx-module-0.12 --add-module=../encrypted-session-nginx-module-0.09 --add-module=../srcache-nginx-module-0.32 --add-module=../ngx_lua-0.10.21 --add-module=../ngx_lua_upstream-0.07 --add-module=../headers-more-nginx-module-0.33 --add-module=../array-var-nginx-module-0.05 --add-module=../memc-nginx-module-0.19 --add-module=../redis2-nginx-module-0.15 --add-module=../redis-nginx-module-0.3.9 --add-module=../ngx_stream_lua-0.0.11 --with-ld-opt='-Wl,-rpath,/usr/local/openresty/luajit/lib -L/usr/local/openresty/zlib/lib -L/usr/local/openresty/pcre/lib -L/usr/local/openresty/openssl111/lib -Wl,-rpath,/usr/local/openresty/zlib/lib:/usr/local/openresty/pcre/lib:/usr/local/openresty/openssl111/lib' --with-cc='ccache gcc -fdiagnostics-color=always' --with-pcre-jit --with-stream --with-stream_ssl_module --with-stream_ssl_preread_module --with-http_v2_module --without-mail_pop3_module --without-mail_imap_module --without-mail_smtp_module --with-http_stub_status_module --with-http_realip_module --with-http_addition_module --with-http_auth_request_module --with-http_secure_link_module --with-http_random_index_module --with-http_gzip_static_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-threads --with-compat --with-stream --with-http_ssl_module

3.2访问80端口

3.3访问9000端口

至此，Openresty 已成功搭建。

4.目录结构优化

我们把lua代码放在nginx配置中会随着lua的代码的增加导致配置文件太长不好维护，因此我们应该把lua代码移到外部文件中存储

4.1单独存放lua文件

mkdir -p /opt/data/openresty/lua/
vi /opt/data/openresty/lua/test.lua
local date=os.date('%Y-%m-%d %H:%M:%S');
local html = [[
<html>
<head></head>
<body>
    <a href="http://www.runoob.com/">hello world by lua!中文测试</a>
</body>
</html>
]];

ngx.say(html , date );

tab1 = { key1 = "val1", key2 = "val2", key3 ="val3" };
for k, v in pairs(tab1) do
    ngx.say(k .. " - " .. v);
end

4.2修改配置文件

vi /opt/data/openresty/www/conf/nginx.conf

worker_processes  1;

error_log logs/error.log;

events {

    worker_connections 1024;

http {

     lua_code_cache off;

     charset 'utf-8';

     add_header Access-Control-Allow-Origin *;

    server {

        listen 9000;

        location / {

            default_type text/html;

            content_by_lua_file /opt/data/openresty/lua/test.lua;

4.3重新加载配置

[[email protected] opt]# /usr/local/openresty/nginx/sbin/nginx -p /opt/data/openresty/www/ -c /opt/data/openresty/www/conf/nginx.conf -s reload
nginx: [alert] lua_code_cache is off; this will hurt performance in /opt/data/openresty/www/conf/nginx.conf:7