Installing Monit on Fedora CoreOS

Step 1: Download the Monit Package

The first step is to download the Monit package from the official website http://mmonit.com/monit/#home. You can download the latest version by using the following command:

curl -O https://mmonit.com/monit/dist/monit-5.28.0.tar.gz

Step 2: Extract the Package

Extract the downloaded package using the following command:

tar -zxvf monit-5.28.0.tar.gz

Step 3: Install Dependencies

Run the following command to install dependencies:

sudo dnf install -y make gcc automake autoconf openssl-devel libtool

Step 4: Build Monit

Change to the extracted directory and run the following command to configure and build Monit:

cd monit-5.28.0
./configure
make
sudo make install

Step 5: Configure Monit

Create a new configuration file for Monit with the following command:

sudo nano /etc/monitrc

Add the following content to the configuration file:

check system myhost
    if loadavg (1min) > 4 then alert
    if loadavg (5min) > 2 then alert
    if memory usage > 75% then alert
    if swap usage > 25% then alert
    if cpu usage (user) > 70% then alert
    if cpu usage (system) > 30% then alert
    if cpu usage (wait) > 20% then alert

Step 6: Start Monit

To start Monit, run the following command:

sudo monit

Conclusion

By following the above steps, you should now have Monit installed and running on Fedora CoreOS. You can customize the configuration file to suit your needs and monitor system resources and processes.