The script notifies in Telegram when the server resources exceed the specified threshold values ​​for CPU, RAM and Disk. To install, just run the script and enter telegram_bot_token and chat_id of the group where you want to send notifications

Install

1. Run the script

source <(curl -s https://raw.githubusercontent.com/NodersUA/monitoring/main/setup.sh)

2. Enter your TELEGRAM_API_KEY

How to get Telegram bot API token

3. Enter your MONITORING_CHAT_ID

How to get a group chat id?

Configuration

If you want to change the threshold values ​​then edit the config.conf file in the monitoring directory

nano ~/monitoring/config.conf

You can also change the threshold values ​​with commands

sed -i 's/CPU_THRESHOLD = .*/CPU_THRESHOLD = 80/g' ~/monitoring/config.conf
sed -i 's/RAM_THRESHOLD = .*/RAM_THRESHOLD = 80/g' ~/monitoring/config.conf
sed -i 's/DISC_THRESHOLD = .*/DISC_THRESHOLD = 80/g' ~/monitoring/config.conf

You can also turn notifications on or off with commands

# On notifications
sed -i 's/CPU_NOTIFICATION = .*/CPU_NOTIFICATION = True/g' ~/monitoring/config.conf
sed -i 's/RAM_NOTIFICATION = .*/RAM_NOTIFICATION = True/g' ~/monitoring/config.conf
sed -i 's/DISC_NOTIFICATION = .*/DISC_NOTIFICATION = True/g' ~/monitoring/config.conf

# Off notifications
sed -i 's/CPU_NOTIFICATION = .*/CPU_NOTIFICATION = False/g' ~/monitoring/config.conf
sed -i 's/RAM_NOTIFICATION = .*/RAM_NOTIFICATION = False/g' ~/monitoring/config.conf
sed -i 's/DISC_NOTIFICATION = .*/DISC_NOTIFICATION = False/g' ~/monitoring/config.conf

Useful Commands

# Check logs
journalctl -u alertd -f -o cat

# Restart
systemctl restart alertd

# Stop
systemctl stop alertd

Update

cp ~/monitoring/config.conf ~/config_temp.conf
systemctl stop alertd && cd ~/monitoring
git fetch && git reset --hard
git pull
mv -f ~/config_temp.conf ~/monitoring/config.conf
pip install -r requirements.txt
systemctl start alertd

Delete

systemctl stop alertd
rm /etc/systemd/system/alertd.service
rm -rf $HOME/monitoring

How to rename your hostname

# Rename your server
sudo nano /etc/hostname

# Replace all the old names in the file with the new ones
sudo nano /etc/hosts

sudo reboot