doc: added docs for silences
diff --git a/docs/admin/monitoring.md b/docs/admin/monitoring.md
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+# Monitoring
+
+## Creating silences
+
+In order to create a silence, you'll need to login to your Grafana instance that
+is deployed as part of Atmosphere as an admin user.
+
+1. Click on the hamburger menu in the top left corner and select "Alerting"
+   and then "Silences" from the menu.
+
+   ![Silences menu](static/monitoring-silences-menu.png)
+
+2. Ensure that you select "AlertManager" on the top right corner of the page,
+   this will make sure that you create a silence inside of the AlertManager
+   that is managed by the Prometheus operator instead of the built-in Grafana
+   AlertManager which is not used.
+
+   ![AlertManager list](static/monitoring-alertmanger-list.png)
+
+   !!! warning
+
+   It's important that you select the AlertManager that is managed by the
+   Prometheus operator, otherwise your silence will not be applied to the
+   Prometheus instance that is deployed as part of Atmosphere.
+
+3. Click the "Add Silence" button and use the AlertManager format to create
+   your silence, which you can test by seeing if it matches any alerts in the
+   list labeled "Affected alert instances".
+
+!!! note
+
+    It is strongly recommended that you create a silence with the least amount
+    of needed labels which will make sure that small minor changes to the
+    alerts will not break your silence.
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