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How to Install Nexus on Ubuntu

scolar

Jan 27, 2024 • 2 min read

Nexus is a Sonatype Artifactory repository manager [OSS]. It allows you to store, distribute, and retrieve build artifacts whenever it's required.

Install Mandatory Packages

OpenJDK 1.8

sudo apt-get update
sudo apt-get install openjdk-8-jdk

Execute the below commands — navigate to /opt directory by changing directory:

cd /opt

Download Nexus

http://download.sonatype.com/nexus/3/nexus-3.22.0-02-unix.tar.gz

Extract Nexus

sudo tar -xvf latest-unix.tar.gz
sudo mv latest-unix nexus

Create a user called Nexus

sudo adduser nexus

Give some password may be as admin, but do remember.
Keep entering enter for all other values and press y to confirm the entries.

Give permission to Nexus user

sudo chown -R nexus:nexus /opt/nexus
sudo chown -R nexus:nexus /opt/sonatype-work

sudo vim /opt/nexus/bin/nexus.rc

change: run_as_user=nexus

Modify memory settings

sudo vim /opt/nexus/bin/nexus.vmoptions

Add all the below changes the file with below highlighted entry:

-Xms512m
-Xmx512m
-XX:+UnlockDiagnosticVMOptions

sudo vim /etc/systemd/system/nexus.service

Copy the below content.

[Unit]
Description=nexus service
After=network.target

[Service]
Type=forking
LimitNOFILE=65536
User=nexus
Group=nexus
ExecStart=/opt/nexus/bin/nexus start
ExecStop=/opt/nexus/bin/nexus stop
User=nexus
Restart=on-abort
[Install]
WantedBy=multi-user.target

Now Start Nexus

sudo systemctl enable nexus
sudo systemctl start nexus
sudo systemctl status nexus

If it says stopped, review the steps above and you can troubleshoot by looking into Nexus logs by executing below command:

tail -f /opt/sonatype-work/nexus3/log/nexus.log

Once Nexus is successfully installed, you can access it in the browser by

URL: http://public_dns_name:8081

Reference