Switch to proper standalone executable with Thor

lib/mrsk/cli/prune.rb

@@ -0,0 +1,19 @@
+require "mrsk/cli/base"
+
+class Mrsk::Cli::Prune < Mrsk::Cli::Base
+  desc "all", "Prune unused images and stopped containers"
+  def all
+    invoke :containers
+    invoke :images
+  end
+
+  desc "images", "Prune unused images older than 30 days"
+  def images
+    on(MRSK.config.hosts) { execute *MRSK.prune.images }
+  end
+
+  desc "containers", "Prune stopped containers for the service older than 3 days"
+  def containers
+    on(MRSK.config.hosts) { execute *MRSK.prune.containers }
+  end
+end