Script for installing Nexus

install-nexus.sh

# configure HTTP proxy. REPLACE rhe-proxy.prod.lan with your domain name
export http_proxy=http://rhe-proxy.prod.lan:8080

# persistent environment variable. REPLACE rhe-proxy.prod.lan with your domain name
echo "export http_proxy=http://rhe-proxy.prod.lan:8080" > /etc/profile.d/nexus.sh

# create nexus system account
/usr/sbin/adduser -r nexus

# install nexus as per http://books.sonatype.com/nexus-book/reference/install-sect-service.html
wget http://www.sonatype.org/downloads/nexus-2.9.0-bundle.tar.gz
tar xvf nexus-2.9.0-bundle.tar.gz
chown -R nexus:nexus nexus-2.9.0-04
chown -R nexus:nexus sonatype-work
mv nexus-2.9.0-04 /usr/local/
mv sonatype-work /usr/local/

# PID file
mkdir /usr/local/nexus-2.9.0-04/run
chmod 755 /usr/local/nexus-2.9.0-04/run
chown nexus:nexus /usr/local/nexus-2.9.0-04/run

# service
cp /usr/local/nexus-2.9.0-04/bin/nexus /etc/init.d/nexus

# settings
sed -i "s/NEXUS_HOME=\"..\"/NEXUS_HOME=\"\/usr\/local\/nexus-2.9.0-04\"/g" /etc/init.d/nexus
sed -i "s/#PIDDIR=\".\"/PIDDIR=\"\/usr\/local\/nexus-2.9.0-04\/run\"/g" /etc/init.d/nexus
sed -i "s/#RUN_AS_USER=/RUN_AS_USER=\"nexus\"/g" /etc/init.d/nexus

#[OPTIONAL] allow port. In case of AWS/GCloud ignore this step and add localhost:8081 as reverse proxy in nginx or apache 
#/sbin/iptables -I INPUT 5 -p tcp -m state --state NEW --dport 8081 -j ACCEPT; /etc/init.d/iptables save

#[OPTIONAL] IF USING CHKCONFIG
#/sbin/chkconfig --add nexus
#/sbin/chkconfig --levels 345 nexus on

#/sbin/service nexus start

#ELSE standalone
cd /etc/init.d
sudo update-rc.d nexus defaults
sudo service nexus start

#Access the server on http://localhost:8081/nexus. Default credentials admin/admin123
#REF1 Running behind a reverse proxy - https://help.sonatype.com/repomanager2/installing-and-running/running-behind-a-reverse-proxy
#REF2 Other https://www.build-business-websites.co.uk/install-nexus-on-ubuntu-16-04/