StatusChecker-Enabling at Startup

StatusChecker-Enabling at Startup

StatusChecker helps you montor and manage your network devices and servers. It is best to have this always running on your server.

Michael Baggett

StatusChecker can be added to launch at startup using these instructions, tested on RHEL 9.5.

StatusChecker

Enable StatusChecker to Autostart

  • Create the file: /usr/local/bin/start-status-api.sh
sudo nano /usr/local/bin/start-status-api.sh
  • Add the following lines:
#!/bin/bash
# Start Status Checker
#
# Debugging
set -x
exec > /tmp/start-status-api.log 2>&1

# Set the working directory to the desired path
cd /usr/share/nginx/status-api.cvad.unt.edu || {
  echo "Error: Failed to navigate to /usr/share/nginx/status-api.cvad.unt.edu"
  exit 1
}

cd backend || {
  echo "Error: Failed to navigate to backend"
  exit 1
}

# Bring up Docker containers with build and detach mode
docker compose up --build -d || {
  echo "Error: Failed to start Docker containers"
  exit 1
}
echo "Docker containers started successfully!"

Set correct permissions and ownership

sudo chmod +x /usr/local/bin/start-status-api.sh
sudo chown root:root /usr/local/bin/start-status-api.sh
  • Create systemd configuration
sudo nano /etc/systemd/system/status-api.service
  • Configure status-api.service

Copy these lines into the systemd file:

[Unit]
Description=Start Status API Docker Service
After=network.target
[Service]
ExecStart=/usr/local/bin/start-status-api.sh
WorkingDirectory=/usr/share/nginx/status-api.cvad.unt.edu
Restart=always
User=root
Group=root
StandardOutput=journal
StandardError=journal
[Install]
WantedBy=multi-user.target
  • Restart Daemon, Enable, and Start
sudo systemctl daemon-reload
sudo systemctl enable status-api.service
sudo systemctl start status-api.service

Done.

Troubleshooting

  • Check Status of status-api.service
sudo systemctl status status-api.service
  • View logs for status-api-service
sudo journalctl -u status-api.service
  • Stop status-api-service
sudo systemctl stop status-api.service
  • Disable status-api-service
sudo systemctl disable status-api.service
  • Check for Windows CRLF in file:
file /usr/local/bin/start-status-api.sh
  • Convert script to UNIX Line endings
sudo dnf install -y dos2unix
sudo dos2unix /usr/local/bin/start-status-api.sh