1.环境说明
2.安装
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| tar xzvf ngx_openresty-1.7.10.1.tar.gz cd ngx_openresty-1.7.10.1 # 使用brew安装依赖, # 在本版本的mac上,把依赖安装到了/usr/local/opt/下了,在编译时指定的依赖路径就是依赖安装的目录 brew install pcre openssl
# 编译 --with-cc-opt --with-ld-opt 依赖的路径 # --prefix 指定openresty的安装目录 # -j4 表示使用4核cup去执行编译工作 ./configure \ --with-cc-opt="-I/usr/local/opt/openssl/include/ -I/usr/local/opt/pcre/include/" \ --with-ld-opt="-L/usr/local/opt/openssl/lib/ -L/usr/local/opt/pcre/lib/" \ --prefix=/opt/openresty \ -j4
make -j4 sudo make install
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进入openresty的安装目录
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| cd /opt/openresty
ls # 查看目录结构,四个目录 # bin luajit lualib nginx
# 启动openresty,即启动其NGINX sudo /opt/openresty/nginx/sbin/nginx -c /opt/openresty/nginx/conf/nginx.conf -p /opt/openresty/nginx
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可访问80端口进行验证,或者使用 ps -ef | grep nginx
进行验证
3. 简单的lua文件 hello world
在编写lua文件时,建议使用 sublime
进行编写。
打开目录 /opt/openresty/nginx
默认NGINX的配置,本机配置文件 /opt/openresty/nginx/conf/nginx.conf
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| #user nobody;
# 只启动一个worker进程 worker_processes 1;
#error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info;
#pid logs/nginx.pid;
events { worker_connections 1024; }
http { include mime.types; default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$status $body_bytes_sent "$http_referer" ' # '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on; #tcp_nopush on;
#keepalive_timeout 0; keepalive_timeout 65;
#gzip on;
server { listen 80; server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / { root html; index index.html index.htm; }
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; }
# proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #}
# deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} }
# another virtual host using mix of IP-, name-, and port-based configuration # #server { # listen 8000; # listen somename:8080; # server_name somename alias another.alias;
# location / { # root html; # index index.html index.htm; # } #}
# HTTPS server # #server { # listen 443 ssl; # server_name localhost;
# ssl_certificate cert.pem; # ssl_certificate_key cert.key;
# ssl_session_cache shared:SSL:1m; # ssl_session_timeout 5m;
# ssl_ciphers HIGH:!aNULL:!MD5; # ssl_prefer_server_ciphers on;
# location / { # root html; # index index.html index.htm; # } #}
}
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新建一个location,指定lua脚本
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| #user nobody;
# 只启动一个worker进程 worker_processes 1;
#error_log logs/error.log; #error_log logs/error.log notice; #error_log logs/error.log info;
#pid logs/nginx.pid;
events { worker_connections 1024; }
http { include mime.types; default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" ' # '$status $body_bytes_sent "$http_referer" ' # '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on; #tcp_nopush on;
#keepalive_timeout 0; keepalive_timeout 65;
#gzip on;
server { listen 80; server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / { root html; index index.html index.htm; } # 新增 hello 路径,通过content_by_lua_file,指定一个lua脚本 # 一旦用户请求/hello, nginx就会运行 lua/hello.lua 脚本 location /hello { content_by_lua_file lua/hello.lua; }
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; }
# proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ \.php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #}
# deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} }
# another virtual host using mix of IP-, name-, and port-based configuration # #server { # listen 8000; # listen somename:8080; # server_name somename alias another.alias;
# location / { # root html; # index index.html index.htm; # } #}
# HTTPS server # #server { # listen 443 ssl; # server_name localhost;
# ssl_certificate cert.pem; # ssl_certificate_key cert.key;
# ssl_session_cache shared:SSL:1m; # ssl_session_timeout 5m;
# ssl_ciphers HIGH:!aNULL:!MD5; # ssl_prefer_server_ciphers on;
# location / { # root html; # index index.html index.htm; # } #}
}
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在nginx
目录下,新建 lua
目录,并且在 lua
目录中创建 hello.lua
nginx
- conf
- fastcgi.conf
- fastcgi.conf.default
- fastcgi_params
- fastcgi_params.default
- koi-utf
- koi-win
- mime.types
- mime.types.default
- nginx.conf
- nginx.conf.default
- scgi_params
- scgi_params.default
- uwsgi_params
- uwsgi_params.default
- win-utf
- logs
- access.log
- error.log
- nginx.pid
- lua
配置文件修改了,需要重新加载。
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| sudo /opt/openresty/nginx/sbin/nginx -c /opt/openresty/nginx/conf/nginx.conf -p /opt/openresty/nginx -s reload
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执行 curl localhost:80/hello
进行验证lua脚本
4.注意
4.1 热加载lua脚本
在上面的操作的中,可以看到 每次更改文件都需要重新reload。太麻烦了!
在开发调试时,希望有一种自动加载的机制,每次修改后都自动加载。可以通过配置解决这个问题
需要 /opt/openresty/nginx/conf/nginx.conf
文件中server添加配置 lua_code_cache off;
即可实现
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| server { listen 80; server_name localhost; lua_code_cache off;
#charset koi8-r; ......
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但是只能在开发环境中,这样(*lua_code_cache off *)配置。在线上环境中,一定要开启,否则会影响性能。
重新加载配置文件,会提示性能警告:
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| nginx: [alert] lua_code_cache is off; this will hurt performance in /opt/openresty/nginx/conf/nginx.conf:38
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