How to Install SonarQube in Ubuntu Linux – Download and Setup SonarQube

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How to Install #sonarqube in Ubuntu Linux – Download and Setup SonarQube

1. Install OpenJDK 11
SSH to your Ubuntu server as a non-root user with sudo access.
Install OpenJDK 11.

$ sudo apt-get install openjdk-11-jdk -y

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2. Install and Configure PostgreSQL
Add the PostgreSQL repository.

$ sudo sh -c ‘echo “deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main” /etc/apt/sources.list.d/pgdg.list’
Add the PostgreSQL signing key.

$ wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O – | sudo apt-key add –

Install PostgreSQL.

$ sudo apt install postgresql postgresql-contrib -y

Enable the database server to start automatically on reboot.

$ sudo systemctl enable postgresql

Start the database server.

$ sudo systemctl start postgresql

Change the default PostgreSQL password.

$ sudo passwd postgres

Switch to the postgres user.

$ su – postgres

Create a user named sonar.

$ createuser sonar

Log in to PostgreSQL.

$ psql

Set a password for the sonar user. Use a strong password in place of my_strong_password.

ALTER USER sonar WITH ENCRYPTED password ‘my_strong_password’;

Create a sonarqube database and set the owner to sonar.

CREATE DATABASE sonarqube OWNER sonar;

Grant all the privileges on the sonarqube database to the sonar user.

GRANT ALL PRIVILEGES ON DATABASE sonarqube to sonar;

Exit PostgreSQL.

q

Return to your non-root sudo user account.

$ exit

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3. Download and Install SonarQube
Install the zip utility, which is needed to unzip the SonarQube files.

$ sudo apt-get install zip -y
Locate the latest download URL from the SonarQube official download page.

Download the SonarQube distribution files.

$ sudo wget https://binaries.sonarsource.com/Distribution/sonarqube/sonarqube-9.6.1.59531.zip
Unzip the downloaded file.

sudo unzip sonarqube-9.6.1.59531.zip

Move the unzipped files to /opt/sonarqube directory

sudo mv sonarqube-9.6.1.59531 sonarqube
sudo mv sonarqube /opt/

4. Add SonarQube Group and User
Create a dedicated user and group for SonarQube, which can not run as the root user.

Create a sonar group.

$ sudo groupadd sonar
Create a sonar user and set /opt/sonarqube as the home directory.

$ sudo useradd -d /opt/sonarqube -g sonar sonar
Grant the sonar user access to the /opt/sonarqube directory.

$ sudo chown sonar:sonar /opt/sonarqube -R

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5. Configure SonarQube
Edit the SonarQube configuration file.

$ sudo nano /opt/sonarqube/conf/sonar.properties
Find the following lines:

#sonar.jdbc.username=
#sonar.jdbc.password=
Uncomment the lines, and add the database user and password you created in Step 2.

sonar.jdbc.username=sonar
sonar.jdbc.password=my_strong_password
Below those two lines, add the sonar.jdbc.url.

sonar.jdbc.url=jdbc:postgresql://localhost:5432/sonarqube
Save and exit the file.

Edit the sonar script file.

$ sudo nano /opt/sonarqube/bin/linux-x86-64/sonar.sh
About 50 lines down, locate this line:

#RUN_AS_USER=
Uncomment the line and change it to:

RUN_AS_USER=sonar
Save and exit the file.

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6. Setup Systemd service
Create a systemd service file to start SonarQube at system boot.

$ sudo nano /etc/systemd/system/sonar.service
Paste the following lines to the file.

[Unit]
Description=SonarQube service
After=syslog.target network.target

[Service]
Type=forking

ExecStart=/opt/sonarqube/bin/linux-x86-64/sonar.sh start
ExecStop=/opt/sonarqube/bin/linux-x86-64/sonar.sh stop

User=sonar
Group=sonar
Restart=always

LimitNOFILE=65536
LimitNPROC=4096

[Install]
WantedBy=multi-user.target
Save and exit the file.

Enable the SonarQube service to run at system startup.

$ sudo systemctl enable sonar
Start the SonarQube service.

$ sudo systemctl start sonar
Check the service status.

$ sudo systemctl status sonar

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7. Modify Kernel System Limits
SonarQube uses Elasticsearch to store its indices in an MMap FS directory. It requires some changes to the system defaults.

Edit the sysctl configuration file.

$ sudo nano /etc/sysctl.conf
Add the following lines.

vm.max_map_count=262144
fs.file-max=65536
ulimit -n 65536
ulimit -u 4096
Save and exit the file.

Reboot the system to apply the changes.

$ sudo reboot
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8. Access SonarQube Web Interface

Access SonarQube in a web browser at your server’s IP address on port 9000. For example:

http://IP:9000
Log in with username admin and password admin. SonarQube will prompt you to change your password.

source

by DevOps&Cloud World

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