Nexus系列：简介和安装（Windows、Linux）以及反向代理Nexus

简介

Sonatype Nexus是一个Maven仓库管理器，可以节省网络带宽并加速项目搭建的进程。它可以管理jar包的仓库，包括上传和下载jar包。此外，Sonatype Nexus还可以配置其他远程maven仓库站点，作为公共maven仓库的专用代理服务器，为maven项目部署提供存储库。它可以搭建局域网maven私服仓库，实现局域网用户共享，并且支持代理广域网上的远程仓库。

官网：https://help.sonatype.com/en/sonatype-nexus-repository.html

安装

Windows

https://sonatype-download.global.ssl.fastly.net/repository/downloads-prod-group/3/nexus-3.30.0-01-win64.zip

输入命令 nexus.exe run 或 nexus.exe install，前者是命令行式启动，后者是安装Nexus服务

Linux

#!/bin/bash
#需要java环境
#创建nexus源码目录
mkdir /usr/local/src/nexus
#进入nexus源码目录
cd /usr/local/src/nexus
#下载nexus压缩包
wget https://sonatype-download.global.ssl.fastly.net/repository/downloads-prod-group/3/nexus-3.30.0-01-unix.tar.gz
#创建nexus安装目录
mkdir -p /usr/local/package/
#解压nexus
tar -zxvf nexus-3.30.0-01-unix.tar.gz -C /usr/local/package
#进入包路径
cd /usr/local/package
#重命名
mv  nexus-3.30.0-01 nexus
#配置环境变量
echo "#nexus config.">>/etc/profile
echo "export NEXUS_HOME=/usr/local/package/nexus">>/etc/profile
echo 'export PATH=$PATH:${NEXUS_HOME}/bin'>>/etc/profile
#立即生效
source /etc/profile

#vim /usr/local/package/nexus/bin/nexus.rc #修改启动用户
#run_as_user=""			#内容就这一行，放开注释，填写用户即可
#vim /usr/local/package/nexus/etc/nexus-default.properties	#默认是8081
#访问http://ip:8081，登陆用户admin 密码存放在：/usr/local/nexus/sonatype-work/nexus3/admin.password 目录

#配置nexus启动用户
useradd -d "/home/nexus" -m -s "/sbin/nologin" nexus
chown -R nexus:nexus  /usr/local/package/nexus
chown -R nexus:nexus /usr/local/package/sonatype-work
echo run_as_user='"nexus"' >>/usr/local/nexus/bin/nexus.rc

#配置 nexus.service
#https://www.cnblogs.com/vitoboy/p/12657581.html init.d
#启动nexus需要依赖rpcbind
# 否则提示错误:Cannot add dependency job for unit rpcbind.socket, ignoring: Unit not found.
yum install -y rpcbind
systemctl start rpcbind.service 
cat >/etc/systemd/system/nexus.service<<EOF
[Unit]
Description=nexus
After=network.target
[Service]
Type=forking
LimitNOFILE=65536
ExecStart=/usr/local/package/nexus/bin/nexus start
ExecStop=/usr/local/package/nexus/bin/nexus stop
User=nexus
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF
#启动nexus
systemctl start nexus
#设置开启自启动
systemctl enable nexus

Nexus相关命令

1. 启动命令：nexus start
2. 停止命令：nexus stop
3. 重启命令：nexus restart
4. 安装为服务：nexus install
5. 卸载服务：nexus uninstall

此外，还有显示设备软件版本和硬件信息的命令：show version；显示设备硬件清单的命令：show inventory；显示所有接口的状态和连接情况的命令：show interfaces status等。

命令	说明
install	安装为服务
uninstall	卸载服务
start	后台启动
stop	停止
status	状态
run	运行
run-redirect	运行重定向

Nginx反向代理Nexus

   server {
    listen   80;
    server_name  nuget.vmcode.cn;
    client_max_body_size 1G;
    #proxy_max_temp_file_size 2G;
    location / {
      # Use IPv4 upstream address instead of DNS name to avoid attempts by nginx to use IPv6 DNS lookup
      proxy_pass http://127.0.0.1:8081/;
      proxy_set_header Host $host;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_max_temp_file_size 0; 
      client_max_body_size    20m;
      client_body_buffer_size  128k;
      proxy_connect_timeout   90;
      proxy_send_timeout     90;
      proxy_read_timeout     90; 
      proxy_temp_file_write_size 64k;
      proxy_http_version 1.1;
      proxy_request_buffering off;
    }
  }