Src Install Nexus2
编译安装 Nexus2
一. 安装说明
- System：CentOS7.9.2009 Minimal
- Java：jdk-8u291-linux-x64
- Maven：apache-maven-3.8.1-bin
- Nexus：nexus-2.14.20-02-bundle
二. 安装 Java
| $ wget https://download.oracle.com/otn/java/jdk/8u291-b10/d7fc238d0cbf4b0dac67be84580cfb4b/jdk-8u291-linux-x64.tar.gz
$ tar -xf jdk-8u291-linux-x64.tar.gz -C /usr/local/
$ mv /usr/local/jdk1.8.0_291 /usr/local/java
$ vim /etc/profile
# java
JAVA_HOME=/usr/local/java
JRE_HOME=/usr/local/java/jre
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
export JAVA_HOME JRE_HOME PATH CLASSPATH
$ source /etc/profile
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三. 安装 Maven
| $ wget https://mirrors.bfsu.edu.cn/apache/maven/maven-3/3.8.1/binaries/apache-maven-3.8.1-bin.tar.gz
$ tar -xf apache-maven-3.8.1-bin.tar.gz -C /usr/local/
$ mv /usr/local/apache-maven-3.8.1 /usr/local/maven
$ vim /etc/profile
# maven
export MAVEN_HOME=/usr/local/maven
export PATH=${JAVA_HOME}/bin:/usr/local/mysql/bin:${MAVEN_HOME}/bin:$PATH
$ source /etc/profile
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四. 安装 Nexus2
| $ wget https://download.sonatype.com/nexus/oss/nexus-2.14.20-02-bundle.tar.gz
$ mkdir /usr/local/nexus
$ tar -xf nexus-2.14.20-02-bundle.tar.gz -C /usr/local/nexus
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修改/nexus-2.14.20-02/conf 目录下：nexus.properties，端口可以自定义，避免冲突
| # Sonatype Nexus
# ==============
# This is the most basic configuration of Nexus.
# Jetty section
application-port=8081
application-host=0.0.0.0
nexus-webapp=${bundleBasedir}/nexus
nexus-webapp-context-path=/nexus
# Nexus section
nexus-work=${bundleBasedir}/../sonatype-work/nexus
runtime=${bundleBasedir}/nexus/WEB-INF
# orientdb buffer size in megabytes
storage.diskCache.bufferSize=4096
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在 /nexus-2.14.20-02/bin/目录下执行：RUN_AS_USER=root ./nexus start
访问 http://ip:port/nexus ，登陆Nexus，默认的用户名是：admin、密码是：admin123
设置一个环境变量，让 nexus 直接用 root 用户启动
| # 配置环境变量
$ echo >> /etc/profile
$ echo "# set nexus run as root" >> /etc/profile
$ echo "export RUN_AS_USER=root" >> /etc/profile
# 使配置文件生效
$ source /etc/profile
$ /opt/nexus/nexus-2.14.20-02/bin/nexus start
****************************************
WARNING - NOT RECOMMENDED TO RUN AS ROOT
****************************************
Starting Nexus OSS...
Started Nexus OSS.
$ netstat -tulnp | grep $(jps -l | grep org.sonatype.nexus.bootstrap.jsw.JswLauncher | awk '{print $1}')
tcp 0 0 0.0.0.0:8081 0.0.0.0:* LISTEN 1768/java
tcp 0 0 127.0.0.1:32000 0.0.0.0:* LISTEN 1768/java
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配置开机自启服务
| $ cat > /lib/systemd/system/nexus.service <<-EOF
[Unit]
Description=nexus
After=network.target
[Service]
Type=forking
Environment=RUN_AS_USER=root
Environment=PATH=/root/.tiup/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/usr/local/java/bin:/usr/local/maven/bin:/root/bin:/usr/local/java/bin:/usr/local/maven/bin:/usr/local/java/bin:/usr/local/maven/bin
ExecStart=/opt/nexus/nexus-2.14.20-02/bin/nexus start
ExecReload=/opt/nexus/nexus-2.14.20-02/bin/nexus restart
ExecStop=/opt/nexus/nexus-2.14.20-02/bin/nexus stop
PrivateTmp=true
[Install]
WantedBy=multi-user.target
EOF
$ lsof -i:8081
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
java 3299 root 491u IPv4 38418 0t0 TCP *:tproxy (LISTEN)
java 3299 root 495u IPv4 38420 0t0 TCP data:tproxy->ec2-100-20-0-71.us-west-2.compute.amazonaws.com:57067 (CLOSE_WAIT)
java 3299 root 496u IPv4 38470 0t0 TCP data:tproxy->ec2-100-20-0-71.us-west-2.compute.amazonaws.com:62446 (CLOSE_WAIT)
java 3299 root 497u IPv4 38471 0t0 TCP data:tproxy->ec2-100-20-0-71.us-west-2.compute.amazonaws.com:61221 (CLOSE_WAIT)
java 3299 root 498u IPv4 38472 0t0 TCP data:tproxy->ec2-100-20-0-71.us-west-2.compute.amazonaws.com:62283 (ESTABLISHED)
java 3299 root 500u IPv4 38473 0t0 TCP data:tproxy->ec2-100-20-0-71.us-west-2.compute.amazonaws.com:58709 (ESTABLISHED)
java 3299 root 501u IPv4 38474 0t0 TCP data:tproxy->ec2-100-20-0-71.us-west-2.compute.amazonaws.com:57747 (ESTABLISHED)
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