Merge branch 'decommission-docs'

docs/deploy/delete_server.rst

@@ -6,7 +6,7 @@ A server is deleted either when a service is moving to a new server (:doc:`creat
 As with other deployment tasks, do the :ref:`setup tasks<generic-setup>` before (and the :ref:`cleanup tasks<generic-cleanup>` after) the steps below.
 
 #. If appropriate, notify relevant users of the change
-#. Remove the server from ``salt/prometheus/server/files/config/conf-prometheus.yml``
+#. Remove the server from ``salt/prometheus/files/conf-prometheus.yml``
 #. :doc:`Deploy<deploy>` the Prometheus service
 #. Shutdown the server via the :ref:`host<hosting>`'s interface
 #. Remove all occurrences of the server's FQDN and IP address from this repository
@@ -25,4 +25,14 @@ If the service is being retired:
 
 Finally:
 
+#. Securely erase data:
+
+   #. Request a *Rescue* system via the :ref:`host<hosting>`'s interface and connect as ``root``
+   #. Connect to the server, and open a session in :ref:`tmux<tmux>`
+   #. Securely erase data from the relevant device(s), for example:
+
+      .. code-block:: bash
+
+         shred -z -n 1 -v /dev/sda
+
 #. Cancel the server via the host's interface