Deploy a Java application on onesubnet

onesubnet runs your Java applications (Spring Boot, services, API) on an optimized JVM. Deploy via Git.

1. Prepare the project

• A pom.xml (Maven) or build.gradle (Gradle) at the root.
• Spring Boot reads the PORT variable automatically. For another server, bind the port to $PORT.

2. Deploy

1. Connect your Git repository in the panel.
2. Build command:
   • Maven: mvn clean package -DskipTests
   • Gradle: ./gradlew build -x test
3. Start command: java -jar target/app.jar (adjust the JAR name). For Spring Boot, add --server.port=$PORT if needed.

3. Environment variables

DATABASE_URL, Spring secrets (SPRING_DATASOURCE_URL…) in Settings → Environment.

4. JVM memory

To tune the heap to your plan: java -Xmx512m -jar target/app.jar.

References

• Spring Boot: https://docs.spring.io/spring-boot/
• Maven: https://maven.apache.org/guides/