I am working on a project where I need to install the Spring Boot application Pet Clinic onto an Ubuntu 22 server using SSM Documents. I have attached the Systems Manager Run Document. The error below comes from the command sudo journalctl -u spring-petclinic.service. I tried giving any and all access, running as root, and it still isn’t working.

Any idea on how to get this application to stay running?

May 17 21:52:36 ip-10-0-4-141 systemd[1]: spring-petclinic.service: Failed with result 'exit-code'.
May 17 21:52:36 ip-10-0-4-141 systemd[1]: spring-petclinic.service: Scheduled restart job, restart counter is at 3.
May 17 21:52:36 ip-10-0-4-141 systemd[1]: Stopped Spring PetClinic Application.
May 17 21:52:36 ip-10-0-4-141 systemd[1]: Started Spring PetClinic Application.
May 17 21:52:36 ip-10-0-4-141 java[7076]: Error: Unable to access jarfile /clinic/spring-petclinic/target/*.jar
May 17 21:52:36 ip-10-0-4-141 systemd[1]: spring-petclinic.service: Main process exited, code=exited, status=1/FAILURE
May 17 21:52:36 ip-10-0-4-141 systemd[1]: spring-petclinic.service: Failed with result 'exit-code'.
May 17 21:52:36 ip-10-0-4-141 systemd[1]: spring-petclinic.service: Scheduled restart job, restart counter is at 4.
May 17 21:52:36 ip-10-0-4-141 systemd[1]: Stopped Spring PetClinic Application.
May 17 21:52:36 ip-10-0-4-141 systemd[1]: Started Spring PetClinic Application.
May 17 21:52:36 ip-10-0-4-141 java[7077]: Error: Unable to access jarfile /clinic/spring-petclinic/target/*.jar
May 17 21:52:36 ip-10-0-4-141 systemd[1]: spring-petclinic.service: Main process exited, code=exited, status=1/FA

---
schemaVersion: '2.2'
description: Install Java 17 and run the Spring PetClinic application
parameters: {}
mainSteps:
- name: InstallJava17
  action: aws:runShellScript
  inputs:
    runCommand:
    - |
      #!/bin/bash
      
      # Check if Java is installed
      if java -version > /dev/null 2>&1; then
        echo "Java is installed. No need to restart"
      else
        echo "Java is not installed. Restarting after install...."
        # Update package lists
        sudo apt-get update
        
        # Install OpenJDK 17
        sudo apt-get install -y openjdk-17-jdk
          
        # Verify Java installation
        java -version

        exit 194
      fi
      
- name: DownloadApplication
  action: aws:runShellScript
  inputs:
    runCommand:
    - |
      #!/bin/bash
      
      # clean the environment file
      cat /dev/null > /etc/environment
      
      # set the full path
      echo "PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:$JAVA_HOME/bin"" | sudo tee -a /etc/environment
      
      # grab the java home and set it in the environment
      JAVA_HOME=$(sudo update-alternatives --config java | grep -o -E '/usr/lib/jvm/[a-zA-Z0-9-]+') 
      echo "JAVA_HOME="$JAVA_HOME"" | sudo tee -a /etc/environment
      
      # update the variables
      source /etc/environment
        
      echo "whoami?"
      sudo whoami
      
      # Create and move into new folder
      sudo mkdir /clinic
      cd /clinic
      
      # Download the repository
      echo "# Download the repository"
      sudo git clone https://github.com/spring-projects/spring-petclinic.git
      
      # Move into the folder
      echo "# Move into the folder"
      cd spring-petclinic
      
      # Start the Maven build
      echo "# Start the Maven build"
      ./mvnw package
      
- name: CreateSystemdService
  action: aws:runShellScript
  inputs:
    runCommand:
    - |
      #!/bin/bash
      
      # clean the environment file
      cat /dev/null > /etc/environment
      
      # set the full path
      echo "PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:$JAVA_HOME/bin"" | sudo tee -a /etc/environment
      
      # grab the java home and set it in the environment
      JAVA_HOME=$(sudo update-alternatives --config java | grep -o -E '/usr/lib/jvm/[a-zA-Z0-9-]+') 
      echo "JAVA_HOME="$JAVA_HOME"" | sudo tee -a /etc/environment
      
      # update the variables
      source /etc/environment
      
      # Create systemd service unit
      echo "# Create systemd service unit"
      sudo tee /etc/systemd/system/spring-petclinic.service <<EOF
      [Unit]
      Description=Spring PetClinic Application
      After=network.target
      
      echo "THIS IS THE PATH"
      echo $PATH
      
      echo "THIS IS THE JAVA_HOME"
      echo $JAVA_HOME
      
      [Service]
      ExecStart=/usr/lib/jvm/java-17-openjdk-amd64/bin/java -jar /clinic/spring-petclinic/target/*.jar
      Restart=always
      User=root
      
      [Install]
      WantedBy=multi-user.target
      EOF
      
      echo "whoami?"
      sudo whoami
      
      # Reload systemd and start the service
      echo "# Reload systemd and start the service"
      
      echo "whoami?"
      sudo whoami

      echo "daemon is reloading"
      sudo systemctl daemon-reload
      
      echo "whoami?"
      sudo whoami
      
      echo "enabling spring-petclinic"
      sudo systemctl enable spring-petclinic
      
      echo "whoami?"
      sudo whoami
      
      echo "starting spring-petclinic"
      sudo systemctl start spring-petclinic