Zabbix is an open-source software tool to monitor IT infrastructure such as networks, servers, virtual machines, and cloud services

• https://en.wikipedia.org/wiki/Zabbix
• https://learning.oreilly.com/library/view/zabbix-6-it/9781803246918/ – looks like their most recent publication on Zabbix right now

Of course you can run Zabbix as a set of Docker containers. That looks most convenient nowadays.