Uptime Kuma is an excellent free server monitoring system. I needed it running on EC2 – a fairly straightforward install from source as long as you have all the right pieces of the puzzle – which include the process manager for nodejs:
cd ~ec2-user
sudo dnf install -y git
sudo dnf install nodejs
git clone https://github.com/louislam/uptime-kuma.git
cd uptime-kuma
npm run setup
sudo npm install -g pm2
pm2 install pm2-logrotate
pm2 start server/server.js --name uptime-kuma
pm2 save
pm2 startup
sudo env PATH=$PATH:/usr/bin /usr/local/lib/node_modules/pm2/bin/pm2 startup systemd -u ec2-user --hp /home/ec2-user
To update in the future to the latest version:
cd ~/uptime-kuma
pm2 stop uptime-kuma
git fetch origin
git checkout master
git pull origin master
npm install
pm2 restart uptime-kuma
pm2 save
Or if you want a specific version (edit as necessary):
cd ~/uptime-kuma
pm2 stop uptime-kuma
git fetch origin --tags
git checkout tags/1.23.16
npm install
pm2 restart uptime-kuma
pm2 save
I always update the slack notifications to customise them (obviously change MyService to your own text):
sed -i 's/"Uptime Kuma Alert"/"MyService Uptime Alert"/g' /home/ec2-user/uptime-kuma/server/notification-providers/slack.js
sed -i 's/"Visit Uptime Kuma"/"Check MyService Status"/g' /home/ec2-user/uptime-kuma/server/notification-providers/slack.js
sed -i 's/"url": baseURL + getMonitorRelativeURL(monitorJSON.id),/"url": baseURL + "\/status\/myservice",/g' /home/ec2-user/uptime-kuma/server/notification-providers/slack.js