title: Prometheus server reload rules automatically
body: <p>I'm using the prometheus-community helm chart to deploy prometheus in my cluster.</p>
  <p>I know that is possible to configure a custom service discovery for discovering new targets dynamically, this process does not requires a reload operation in Prometheus, see example:</p>
  <pre><code>      scrape_configs:
      - job_name: 'my-custom-job'
        file_sd_configs:
          - files:
              - '/my/path/targets.json'
            refresh_interval: 5m
  </code></pre>
  <p>Is there any similar concept for alerting rules?</p>
  <p>I would like to create my custom discovery alerting rules, where I would make some calls, get some rules, validate the rules and store as a json file that will be read by prometheus in a certain period of time and does not requires any reload operation. Is it possible?</p>