Document the rolling option for traefik reboots

README.md

@@ -633,6 +633,16 @@ traefik:
     entrypoints.otherentrypoint.address: ':9000'
 ```
 
+### Rebooting Traefik
+
+If you make changes to Traefik args or labels, you'll need to reboot with:
+
+`mrsk traefik reboot`
+
+In production, reboot the Traefik containers one by one with a slower but safer approach, using a rolling reboot:
+
+`mrsk traefik reboot --rolling`
+
 ### Configuring build args for new images
 
 Build arguments that aren't secret can also be configured:

lib/mrsk/cli/traefik.rb

@@ -9,8 +9,8 @@ class Mrsk::Cli::Traefik < Mrsk::Cli::Base
     end
   end
 
-  method_option :rolling, type: :boolean, default: false, desc: "Reboot traefik on hosts in sequence, rather than in parallel"
   desc "reboot", "Reboot Traefik on servers (stop container, remove container, start new container)"
+  option :rolling, type: :boolean, default: false, desc: "Reboot traefik on hosts in sequence, rather than in parallel"
   def reboot
     mutating do
       on(MRSK.traefik_hosts, in: options[:rolling] ? :sequence : :parallel) do