title: Unable to reload Prometheus configuration
body: <p>I've started Prometheus service with -</p>
  <pre><code>docker service create --replicas 1 --name my-prometheus \
      --mount type=bind,source=/tmp/prometheus.yml,destination=/etc/prometheus/prometheus.yml \
      --publish published=9090,target=9090,protocol=tcp \
      prom/prometheus
  </code></pre>
  <p>and can access Prometheus dashboard as per configuration made in <code>prometheus.yml</code> file. NOw I made some changes in <code>prometheus.yml</code> and want to reflect them hence hit command -</p>
  <pre><code>curl -X POST http://localhost:9090/-/reload
  </code></pre>
  <p>but this command does not give any output and neither fails; it remains in stuck stage.</p>
  <p>Please help to understand what is wrong here.</p>