Nginx
nginx是当下运用最广泛的开源的反向代理服务器。
反向代理:即把外部来的请求,转发给被代理的服务器,再将返回的结果通过nginx返回给客户端。下面搭建搭建一个负载均衡服务器。
安装Nginx
相关软件
nginx-1.12.0.tar.gz
apache-tomcat-8.5.15.tar.gz
安装Nginx相关依赖
nginx需要依赖一些环境
安装gcc
yum install gcc-c++
安装PCRE
yum install -y pcre pcre-devel
安装zlib
yum install -y zlib zlib-devel
安装openssl
yum install -y openssl openssl-devel
tar -zxvf -R nginx-1.12.0.tar.gz /usr/local/
解压后的到nginx-1.12.0目录,
cd nginx-1.12.0
可以定义nginx的链接文件,例如指定nginx.conf的路径
./configure
–prefix=/usr/local/nginx-1.12.0
–with-http_stub_status_module
–with-http_ssl_module
–with-http_realip_module
编译
make & make install
测试nginx安装
./sbin/nginx -t
如下便安装好了
安装Tomcat,
前提安装好了JDK,并配置好了环境变量。
将Tomcat 解压至/user/local/Tomcat
将我们的测试项目war包,拷贝至webapp目录下,容器启动后会自动解压项目
修改server.xml由于这里我们要在同一台机器上运行2个tomcat实例,所以要更改一个tomcat实例的相关端口,避免和另一个冲突。
我这里在原端口的基础上+1,前提保证端口没被占用。
启动2个tomcat实例。
./bin/startup.sh
配置nginx.conf
#user nobody;
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;
# include hosts/tomcat_test.conf;
upstream nginx_test{
server 127.0.0.1:8080 weight=1;
server 127.0.0.1:8081 weight=1;
}
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
# root html;
# index index.html index.htm;
proxy_pass http://nginx_test;
}
#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;
# }
#}
}
相关配置详情
https://www.nginx.com/resources/wiki/start/topics/examples/full/
这里我们配置一个nginx_test的一个代理,配置2个tomcat映射路径。
测试结果