Sample Spring Boot Web App with Systemd

Run

mvn clean package
java -jar target/spring-boot-systemd-sample-0.0.1-SNAPSHOT.jar 

Run with Systemd

Copy files.

sudo cp systemd/start-spring-boot-systemd-sampleapp.sh /opt/
sudo cp target/spring-boot-systemd-sample-0.0.1-SNAPSHOT.jar /opt/

Add user then change file owner and permission.

sudo useradd -m sampleapp

sudo chown sampleapp:sampleapp /opt/start-spring-boot-systemd-sampleapp.sh
sudo chown sampleapp:sampleapp /opt/spring-boot-systemd-sample-0.0.1-SNAPSHOT.jar

sudo chmod 500 /opt/start-spring-boot-systemd-sampleapp.sh
sudo chmod 400 /opt/spring-boot-systemd-sample-0.0.1-SNAPSHOT.jar

Copy unit file to the target directory.

sudo cp systemd/spring-boot-systemd-sampleapp.service /etc/systemd/system

Start service.

sudo systemctl enable spring-boot-systemd-sampleapp.service 
sudo systemctl start spring-boot-systemd-sampleapp.service 

Testing

Check created service status.

systemctl status spring-boot-systemd-sampleapp.service
● spring-boot-systemd-sampleapp.service - "Sample Application for running spring boot app with systemd"
Loaded: loaded (/etc/systemd/system/spring-boot-systemd-sampleapp.service; enabled; vendor preset: enabled)
Active: active (running) since ...

Check web application status.

curl http://localhost:18888
{"message": "hello"}

The service should start automatically after the machine is rebooted.

Cleanup

Remove created service.

sudo systemctl stop spring-boot-systemd-sampleapp.service 
sudo systemctl disable spring-boot-systemd-sampleapp.service
sudo rm /etc/systemd/system/spring-boot-systemd-sampleapp.service
sudo systemctl daemon-reload 
sudo systemctl reset-failed

Remove copied files and created user.

sudo rm /opt/spring-boot-systemd-sample-0.0.1-SNAPSHOT.jar
sudo rm /opt/start-spring-boot-systemd-sampleapp.sh

sudo userdel -r sampleapp