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Openresty usage document

2022-06-27 05:53:00 【No king in hand】

1. Download and install

1.1 download

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

1.2 install

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

2. start-up

2.1 Create directory

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

2.2 create profile

[[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 start-up

[[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

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

3. verification

3.1 Check the configuration

[[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 visit 80 port

3.3 visit 9000 port

thus ,Openresty Successfully built .

4. Optimize the structure of the directory

We put lua Code placed in nginx Configuration will be accompanied by lua Because of the increase of the code, the configuration file is too long to maintain , So we should take lua Move the code to an external file to store

4.1 Separate storage lua file

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! Chinese test </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 Modify the configuration file

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 Reload configuration

[[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