Split out proper Prune command

lib/mrsk/commands.rb

@@ -21,5 +21,6 @@ module Mrsk::Commands
 end
 
 require "mrsk/commands/app"
+require "mrsk/commands/prune"
 require "mrsk/commands/traefik"
 require "mrsk/commands/registry"

lib/mrsk/commands/prune.rb

@@ -0,0 +1,13 @@
+class Mrsk::Commands::Prune < Mrsk::Commands::Base
+  PRUNE_IMAGES_AFTER     = 30.days.in_hours.to_i
+  PRUNE_CONTAINERS_AFTER =  3.days.in_hours.to_i
+
+  def images
+    docker :image, :prune, "-f", "--filter", "until=#{PRUNE_IMAGES_AFTER}h"
+  end
+
+  def containers
+    docker :image, :prune, "-f", "--filter", "until=#{PRUNE_IMAGES_AFTER}h"
+    docker :container, :prune, "-f", "--filter", "label=service=#{config.service}", "--filter", "'until=#{PRUNE_CONTAINERS_AFTER}h'"
+  end
+end