nginx安裝lua+redis

1.安裝lua

1.1安裝LuaJIT

[root@localhost ~]# yum install readline-devel
[root@localhost ~]# mkdir -p lua-file
[root@localhost ~]# cd lua-file/
[root@localhost lua_file]# wget http://luajit.org/download/LuaJIT-2.0.5.tar.gz
[root@localhost lua_file]# tar -zxvf LuaJIT-2.0.5.tar.gz 
[root@localhost lua_file]# ls
LuaJIT-2.0.5  LuaJIT-2.0.5.tar.gz
[root@localhost lua_file]# cd LuaJIT-2.0.5
[root@localhost LuaJIT-2.0.5]# make && make install PREFIX=/usr/local/luajit

1.2配置LuaJIT環境變數

[root@localhost lua-file]# vim /etc/profile

#/etc/profile 檔案中加入環境變數
export LUAJIT_LIB=/usr/local/luajit/lib
export LUAJIT_INC=/usr/local/luajit/include/luajit-2.0

[root@localhost lua-file]# source /etc/profile

1.3 lua安裝測驗

[root@localhost lua-file]# vim hello.lua
print('hello world lua');

[root@localhost lua-file]# lua hello.lua 
hello world lua

2.ngx_devel_kit和lua-nginx-module

ngx_devel_kit簡稱NDK，提供函式和宏處理一些基本任務，減輕第三方模塊開發的代碼量，
lua-nginx-module是nginx的lua模塊

[root@localhost ~]# mkdir -p /usr/local/src/nginx
[root@localhost ~]# cd /usr/local/src/nginx/
[root@localhost nginx]# wget https://github.com/simpl/ngx_devel_kit/archive/v0.3.0.tar.gz
[root@localhost nginx]# wget https://github.com/openresty/lua-nginx-module/archive/v0.10.9rc7.tar.gz
[root@localhost nginx]# ls
v0.10.9rc7.tar.gz  v0.3.0.tar.gz
[root@localhost nginx]# tar -zxvf v0.10.9rc7.tar.gz 
[root@localhost nginx]# tar -zxvf v0.3.0.tar.gz 

3.查看已安裝好的nginx

3.1查看原安裝

[root@localhost nginx]# /usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.14.2
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC) 
built with OpenSSL 1.0.2k-fips  26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --with-pcre --with-http_ssl_module --with-http_gzip_static_module

3.2 安裝依賴

[root@localhost nginx]# yum -y install openssl openssl-devel zlib zlib-devel pcre-devel

3.3 進入nginx解壓目錄,安裝擴展

[root@localhost ~]# cd nginx-1.14.2
[root@localhost nginx-1.14.2]# 

3.3.1.清空之前的編譯檔案
[root@localhost nginx-1.14.2]# make clean

3.3.2 執行 nginx -V 查看之前的編譯引數

[root@localhost nginx-1.14.2]# /usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.14.2
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC) 
built with OpenSSL 1.0.2k-fips  26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --with-pcre --with-http_ssl_module --with-http_gzip_static_module

3.3.3 添加擴展執行編譯

[root@localhost nginx-1.14.2]# ls /usr/local/src/nginx/
lua-nginx-module-0.10.9rc7  ngx_devel_kit-0.3.0  v0.10.9rc7.tar.gz  v0.3.0.tar.gz
[root@localhost nginx-1.14.2]# ./configure --prefix=/usr/local/nginx --with-pcre --with-http_ssl_module --with-http_gzip_static_module --add-module=/usr/local/src/nginx/lua-nginx-module-0.10.9rc7/ --add-module=/usr/local/src/nginx/ngx_devel_kit-0.3.0/

3.3.4.執行make (不能執行 make install)

[root@localhost nginx-1.14.2]# make

3.3.5.（打開新連接視窗操作）重命名 nginx 舊版本二進制檔案，即 sbin 目錄下的 nginx（期間 nginx 并不會停止服務）

客戶端2
[root@localhost nginx-1.14.2]# cd /usr/local/nginx/sbin/
[root@localhost sbin]# ls
nginx
[root@localhost sbin]# mv nginx nginx.old
[root@localhost sbin]# ls
nginx.old

3.3.6.拷貝一份新編譯的二進制檔案到安裝目錄

[root@localhost nginx-1.14.2]# pwd
/root/nginx-1.14.2
[root@localhost nginx-1.14.2]# cd objs/
[root@localhost objs]# ll
total 9124
drwxr-xr-x. 3 root root      17 Nov 16 22:55 addon
-rw-r--r--. 1 root root   18837 Nov 16 22:55 autoconf.err
-rw-r--r--. 1 root root   68709 Nov 16 22:55 Makefile
-rwxr-xr-x. 1 root root 9132336 Nov 16 22:57 nginx
-rw-r--r--. 1 root root    5341 Nov 16 22:57 nginx.8
-rw-r--r--. 1 root root    7493 Nov 16 22:55 ngx_auto_config.h
-rw-r--r--. 1 root root     657 Nov 16 22:55 ngx_auto_headers.h
-rw-r--r--. 1 root root    6209 Nov 16 22:55 ngx_modules.c
-rw-r--r--. 1 root root   86808 Nov 16 22:57 ngx_modules.o
drwxr-xr-x. 9 root root      91 Nov 16 22:55 src
[root@localhost objs]# cp nginx /usr/local/nginx/sbin/
[root@localhost objs]# ls /usr/local/nginx/sbin/
nginx  nginx.old

3.3.7.在原始碼目錄執行 make upgrade 開始升級

[root@localhost nginx-1.14.2]# make upgrade
/usr/local/nginx/sbin/nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
kill -USR2 `cat /usr/local/nginx/logs/nginx.pid`
sleep 1
test -f /usr/local/nginx/logs/nginx.pid.oldbin
kill -QUIT `cat /usr/local/nginx/logs/nginx.pid.oldbin`

###查看是否安裝成功
[root@localhost nginx-1.14.2]# /usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.14.2
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-39) (GCC) 
built with OpenSSL 1.0.2k-fips  26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --with-pcre --with-http_ssl_module --with-http_gzip_static_module --add-module=/usr/local/src/nginx/lua-nginx-module-0.10.9rc7/ --add-module=/usr/local/src/nginx/ngx_devel_kit-0.3.0/

啟動nginx，如果有這個報錯：nginx: error while loading shared libraries: libluajit-5.1.so.2: cannot open shared object file: No such file or directory

#解決方案
[root@localhost nginx-1.14.2]# vim /etc/ld.so.conf
#新增一條
 /usr/local/luajit/lib

#保存檔案，執行ldconfig 	
[root@localhost nginx-1.14.2]# ldconfig

4 nginx引入lua除錯

4.1 nginx.conf引入lua

[root@localhost conf]# pwd
/usr/local/nginx/conf
[root@localhost conf]# vim nginx.conf

	#關閉代碼快取 ，修改lua腳本不需要重啟
    lua_code_cache off;

	 #測驗lua
    server {
        listen 81;
        server_name localhost;

        #設定變數
        set $test "hello world lua";
        location /lua_test {
                content_by_lua '
                        ngx.header.content_type="text/plain";
                        ngx.say(ngx.var.test);
                ';
        }
    }

4.2 重啟nginx,執行訪問

[root@localhost nginx]# killall nginx
[root@localhost nginx]# /usr/local/nginx/sbin/nginx
nginx: [alert] lua_code_cache is off; this will hurt performance in /usr/local/nginx/conf/nginx.conf:22

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