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nexus-setup.sh
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nexus-setup.sh
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#!/bin/bash
# Hardware requirements: AWS Linux 2 with mimum t2.medium type instance & port 8081 should be allowed on the security groups
# node-exporter installations
sudo useradd --no-create-home node_exporter
wget https://github.com/prometheus/node_exporter/releases/download/v1.0.1/node_exporter-1.0.1.linux-amd64.tar.gz
tar xzf node_exporter-1.0.1.linux-amd64.tar.gz
sudo cp node_exporter-1.0.1.linux-amd64/node_exporter /usr/local/bin/node_exporter
rm -rf node_exporter-1.0.1.linux-amd64.tar.gz node_exporter-1.0.1.linux-amd64
# setup the node-exporter dependencies
sudo yum install git -y
sudo git clone -b installations https://github.com/RichieJJ/devops-fully-automated.git /tmp/devops-fully-automated
sudo cp /tmp/devops-fully-automated/prometheus-setup-dependencies/node-exporter.service /etc/systemd/system/node-exporter.service
sudo systemctl daemon-reload
sudo systemctl enable node-exporter
sudo systemctl start node-exporter
sudo systemctl status node-exporter
# Nexus setup and installations
yum install java-1.8.0-openjdk.x86_64 wget -y
mkdir -p /opt/nexus/
mkdir -p /tmp/nexus/
cd /tmp/nexus/
NEXUSURL="https://download.sonatype.com/nexus/3/latest-unix.tar.gz"
wget $NEXUSURL -O nexus.tar.gz
EXTOUT=`tar xzvf nexus.tar.gz`
NEXUSDIR=`echo $EXTOUT | cut -d '/' -f1`
rm -rf /tmp/nexus/nexus.tar.gz
rsync -avzh /tmp/nexus/ /opt/nexus/
useradd nexus
chown -R nexus.nexus /opt/nexus
cat <<EOT>> /etc/systemd/system/nexus.service
[Unit]
Description=nexus service
After=network.target
[Service]
Type=forking
LimitNOFILE=65536
ExecStart=/opt/nexus/$NEXUSDIR/bin/nexus start
ExecStop=/opt/nexus/$NEXUSDIR/bin/nexus stop
User=nexus
Restart=on-abort
[Install]
WantedBy=multi-user.target
EOT
echo 'run_as_user="nexus"' > /opt/nexus/$NEXUSDIR/bin/nexus.rc
systemctl daemon-reload
systemctl start nexus
systemctl enable nexus