install-nexus3-oss-centos6.sh

install-nexus3-oss-centos6.sh

#!/usr/bin/env bash

## Instructions based on https://books.sonatype.com/nexus-book/reference3/install.html

## Oracle JDK
JDK_RPM_VERSION=8u102
JDK_BUILD=14
JDK_ARCH=x64

## Version 3 - supports  Docker  NuGet  npm  Bower
NEXUS_DEPLOY_VERSION=3.0.2
NEXUS_PACKAGE_SUFFIX=unix
NEXUS_PATCH_LEVEL=02
NEXUS_DOWNLOAD_URL=http://download.sonatype.com/nexus/3

#
# ORACLE SERVER JRE
#

echo "nexus: install Oracle JRE"
cd /tmp
curl -L -O -H "Cookie: oraclelicense=accept-securebackup-cookie" -k http://download.oracle.com/otn-pub/java/jdk/${JDK_RPM_VERSION}-b${JDK_BUILD}/jdk-${JDK_RPM_VERSION}-linux-${JDK_ARCH}.rpm
yum -y localinstall jdk-${JDK_RPM_VERSION}-linux-${JDK_ARCH}.rpm
rm -f jdk-${JDK_RPM_VERSION}-linux-${JDK_ARCH}.rpm

#
# DOWNLOAD NEXUS
#

if [ ! -h /app/nexus/nexus ]; then
    echo "nexus: installing Nexus"

    # Add nexus user
    if [ `grep -c "^nexus:" /etc/passwd` -eq 0 ]; then
        echo "nexus: creating nexus user"
        /usr/sbin/groupadd nexus
        /usr/sbin/useradd -g nexus -c "nexus Server" nexus
        chage -I -1 -m 7 -M -1 -E -1 nexus
        chown nexus:nexus /home/nexus
        chmod 0755 /home/nexus
        if [ ! `grep -q '^#includedir /etc/sudoers.d' /etc/sudoers` ]; then
            mkdir -p /etc/sudoers.d
            chmod 0750 /etc/sudoers.d
            echo '#includedir /etc/sudoers.d' >> /etc/sudoers
        fi
        if [ ! -f /etc/sudoers.d/nexus ]; then
            echo "nexus     ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/nexus
            chmod 0440 /etc/sudoers.d/nexus
        fi
        if [ ! `grep -q '^NEXUS_HOME=' /home/nexus/.bashrc` ]; then
            echo 'NEXUS_HOME="/app/nexus/nexus"' >> /home/nexus/.bashrc
        fi
    fi

    # Create nexus root
    if [ ! -d /app/nexus ]; then
        echo "nexus: creating directory /app/nexus"
        mkdir -p /app/nexus
        chown nexus:nexus /app/nexus
        chmod 700 /app/nexus
    fi

    # Create nexus log root
    if [ ! -d /var/log/nexus ]; then
        echo "nexus: creating directory /var/log/nexus"
        mkdir /var/log/nexus
        chown nexus:nexus /var/log/nexus
        chmod 700 /var/log/nexus
    fi

    # Install createrepo
    echo "nexus: installing createrepo"
    yum -y install createrepo

    # Install wget
    echo "nexus: installing wget"
    yum -y install wget

    # Install nexus
    echo "nexus: Installing nexus-${NEXUS_DEPLOY_VERSION}-${NEXUS_PATCH_LEVEL}-${NEXUS_PACKAGE_SUFFIX}.tar.gz"
    cd /tmp
    wget -nv --no-check-certificate ${NEXUS_DOWNLOAD_URL}/nexus-${NEXUS_DEPLOY_VERSION}-${NEXUS_PATCH_LEVEL}-${NEXUS_PACKAGE_SUFFIX}.tar.gz
    mv nexus-${NEXUS_DEPLOY_VERSION}-${NEXUS_PATCH_LEVEL}-${NEXUS_PACKAGE_SUFFIX}.tar.gz /app/nexus
    cd /app/nexus
    tar xvzf nexus-${NEXUS_DEPLOY_VERSION}-${NEXUS_PATCH_LEVEL}-${NEXUS_PACKAGE_SUFFIX}.tar.gz
    rm -f nexus-${NEXUS_DEPLOY_VERSION}-${NEXUS_PATCH_LEVEL}-${NEXUS_PACKAGE_SUFFIX}.tar.gz
    mkdir sonatype-work
    chown -R nexus:nexus nexus-${NEXUS_DEPLOY_VERSION}-${NEXUS_PATCH_LEVEL} sonatype-work
    rm -f nexus
    ln -f -s /app/nexus/nexus-${NEXUS_DEPLOY_VERSION}-${NEXUS_PATCH_LEVEL} nexus
    ln -f -s /app/nexus/nexus/bin/nexus /etc/init.d/nexus
    if [ `grep NEXUS_HOME /etc/profile | wc -l` -eq 0 ]; then
        echo export NEXUS_HOME=/app/nexus/nexus >> /etc/profile
    fi
    chmod 755 /etc/init.d/nexus
    sed -i "s:^run_as_user='':run_as_user='nexus':" /app/nexus/nexus/bin/nexus
    sed -i 's:^application-port=8081:application-port=8080:' /app/nexus/nexus/etc/org.sonatype.nexus.cfg
    cd /etc/init.d
    chkconfig --add nexus
    chkconfig --levels 345 nexus on

    # Add nexus alias to hosts
    if [ `grep 127.0.0.1 /etc/hosts | grep nexus | wc -l` -eq 0 ]; then
        echo "nexus: Adding nexus alias to /etc/hosts"
        sed -i -e 's:^127.0.0.1:127.0.0.1 nexus:' /etc/hosts
    fi

    # Start nexus
    echo "nexus: starting Nexus"
    service nexus start

    # Verify nexus is running
    echo "nexus: verifying Nexus is running"
    sleep 2
    COUNTER=0
    grep -q 'JettyServer - Running' /app/nexus/nexus/data/log/nexus.log
    while [[ $? -ne 0 && ${COUNTER} -lt 60 ]]; do
        sleep 2
        let COUNTER+=2
        echo "nexus: waiting for Nexus to start... (${COUNTER} seconds so far)"
        grep -q 'JettyServer - Running' /app/nexus/nexus/data/log/nexus.log
    done
    if [[ $(grep -q 'JettyServer - Running' /app/nexus/nexus/data/log/nexus.log) -eq 0 ]]; then
        echo "nexus: nexus is running"
    else
        echo "nexus: ERROR: nexus is NOT running.  Something went wrong."
        exit 1
    fi

    # Check main page is loading
    echo "nexus: verifying Nexus main page is loading"
    sleep 2
    COUNTER=0
    curl -sSL http://localhost:8080 | grep -q "Nexus Repository Manager OSS"
    while [[ $? -ne 0 && ${COUNTER} -lt 60 ]]; do
        sleep 2
        let COUNTER+=2
        echo "nexus: waiting for Nexus main page to load... (${COUNTER} seconds so far)"
        curl -sSL http://localhost:8080 | grep -q "Nexus Repository Manager"
    done
    if [[ $(curl -sSL http://localhost:8080 | grep -q "Nexus Repository Manager") -eq 0 ]]; then
        echo "nexus: nexus main page is loading"
    else
        echo "nexus: ERROR: nexus main page is NOT loading.  Something went wrong."
        exit 1
    fi

    echo "nexus: complete"
else
    echo "nexus: nexus repository already installed"
fi