使用openresty + lua 搭建api 网关（一）安装openresty ，并添加lua模块

阅读量：6962 次

发布时间：2019-06-27

本文共 6809 字，大约阅读时间需要 22 分钟。

openresty 有点不多说，网上各种介绍，先安装吧。

官方操作在此，，

tar -xzvf openresty-VERSION.tar.gzcd openresty-VERSION/./configuremakesudo make install

./configure

然后在进入 openresty-VERSION/ 目录, 然后输入以下命令配置:

./configure

默认, --prefix=/usr/local/openresty 程序会被安装到/usr/local/openresty目录。

您可以指定各种选项，比如

./configure --prefix=/opt/openresty \            --with-luajit \            --without-http_redis2_module \            --with-http_iconv_module \            --with-http_postgres_module

试着使用 ./configure --help 查看更多的选项。

HelloWorld

Prepare directory layout

We first create a separate directory for our experiments. You can use an arbitrary directory. Here for simplicity, we just use ~/work:

mkdir ~/workcd ~/workmkdir logs/ conf/

Note that we've also created the logs/ directory for logging files and conf/ for our config files.

Prepare the nginx.conf config file

Create a simple plain text file named conf/nginx.conf with the following contents in it:

worker_processes  1;error_log logs/error.log;events {    worker_connections 1024;}http {    server {        listen 8080;        location / {            default_type text/html;            content_by_lua '                ngx.say("hello, world
")            ';        }    }}

If you're familiar with configuration, it should look very familiar to you. is just an enhanced version of by means of addon modules anyway. You can take advantage of all the exisitng goodies in the world.

Start the server

Assuming you have installed into /usr/local/openresty (this is the default), we make our nginx executable of our installation available in our PATH environment:

PATH=/usr/local/openresty/nginx/sbin:$PATHexport PATH

Then we start the nginx server with our config file this way:

nginx -p `pwd`/ -c conf/nginx.conf

Error messages will go to the stderr device or the default error log files logs/error.log in the current working directory.

Access our HelloWorld web service

We can use curl to access our new web service that says HelloWorld:

curl http://localhost:8080/

If everything is okay, we should get the output

hello, world

You can surely point your favorite web browser to the location http://localhost:8080/.

Test performance

See for details.

Where to go from here

View the documentation of each component at the page and find related stuff on the .

1、创建目录/usr/servers，以后我们把所有软件安装在此目录

Java代码

mkdir -p /usr/servers

cd /usr/servers/

2、安装依赖（我的环境是ubuntu，可以使用如下命令安装，其他的可以参考openresty安装步骤）

Java代码

apt-get install libreadline-dev libncurses5-dev libpcre3-dev libssl-dev perl

3、下载ngx_openresty-1.7.7.2.tar.gz并解压

Java代码

wget http://openresty.org/download/ngx_openresty-1.7.7.2.tar.gz

tar -xzvf ngx_openresty-1.7.7.2.tar.gz

ngx_openresty-1.7.7.2/bundle目录里存放着nginx核心和很多第三方模块，比如有我们需要的Lua和LuaJIT。

3、安装LuaJIT

Java代码

cd bundle/LuaJIT-2.1-20150120/

make clean && make && make install

ln -sf luajit-2.1.0-alpha /usr/local/bin/luajit

4、下载ngx_cache_purge模块，该模块用于清理nginx缓存

Java代码

cd /usr/servers/ngx_openresty-1.7.7.2/bundle

wget https://github.com/FRiCKLE/ngx_cache_purge/archive/2.3.tar.gz

tar -xvf 2.3.tar.gz

5、下载nginx_upstream_check_module模块，该模块用于ustream健康检查

Java代码

cd /usr/servers/ngx_openresty-1.7.7.2/bundle

wget https://github.com/yaoweibin/nginx_upstream_check_module/archive/v0.3.0.tar.gz

tar -xvf v0.3.0.tar.gz

6、安装ngx_openresty

Java代码

cd /usr/servers/ngx_openresty-1.7.7.2

./configure --prefix=/usr/servers --with-http_realip_module --with-pcre --with-luajit --add-module=./bundle/ngx_cache_purge-2.3/ --add-module=./bundle/nginx_upstream_check_module-0.3.0/ -j2