The web section
The next step is to configure what address users are going to utilize to get to the Prometheus server. The --web.external-url flag sets this base URL so that weblinks generated both in the web user interface and in outgoing alerts link back to the Prometheus server or servers correctly. This might be the DNS name for a load balancer/reverse proxy, a Kubernetes service, or, in the simplest deployments, the publicly accessible, fully qualified domain name of the host running the server. For completeness, and as stated in the official documentation, a URL path can also be supplied here when Prometheus is behind some layer seven reverse proxy with content switching (also referred to as location-based switching or URL prefix routing). ...
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