Commander needn't accumulate configuration

Commander had version/destination solely to incrementally accumulate CLI
options. Simpler to configure in one shot.

Clarifies responsibility and lets us introduce things like
`abbreviated_version` in one spot - Configuration.

lib/mrsk/cli/app.rb

@@ -37,7 +37,7 @@ class Mrsk::Cli::App < Mrsk::Cli::Base
   desc "start", "Start existing app container on servers"
   def start
     on(MRSK.hosts) do
-      execute *MRSK.auditor.record("Started app version #{MRSK.version}"), verbosity: :debug
+      execute *MRSK.auditor.record("Started app version #{MRSK.config.version}"), verbosity: :debug
       execute *MRSK.app.start, raise_on_non_zero_exit: false
     end
   end

lib/mrsk/cli/base.rb

@@ -39,14 +39,6 @@ module Mrsk::Cli
 
       def initialize_commander(options)
         MRSK.tap do |commander|
-          commander.config_file = Pathname.new(File.expand_path(options[:config_file]))
-          commander.destination = options[:destination]
-          commander.version     = options[:version]
-
-          commander.specific_hosts    = options[:hosts]&.split(",")
-          commander.specific_roles    = options[:roles]&.split(",")
-          commander.specific_primary! if options[:primary]
-
           if options[:verbose]
             ENV["VERBOSE"] = "1" # For backtraces via cli/start
             commander.verbosity = :debug
@@ -55,6 +47,15 @@ module Mrsk::Cli
           if options[:quiet]
             commander.verbosity = :error
           end
+
+          commander.configure \
+            config_file: Pathname.new(File.expand_path(options[:config_file])),
+            destination: options[:destination],
+            version: options[:version]
+
+          commander.specific_hosts    = options[:hosts]&.split(",")
+          commander.specific_roles    = options[:roles]&.split(",")
+          commander.specific_primary! if options[:primary]
         end
       end
 

lib/mrsk/cli/build.rb

@@ -29,7 +29,7 @@ class Mrsk::Cli::Build < Mrsk::Cli::Base
   desc "pull", "Pull app image from registry onto servers"
   def pull
     on(MRSK.hosts) do
-      execute *MRSK.auditor.record("Pulled image with version #{MRSK.version}"), verbosity: :debug
+      execute *MRSK.auditor.record("Pulled image with version #{MRSK.config.version}"), verbosity: :debug
       execute *MRSK.builder.clean, raise_on_non_zero_exit: false
       execute *MRSK.builder.pull
     end

lib/mrsk/cli/main.rb

@@ -68,7 +68,7 @@ class Mrsk::Cli::Main < Mrsk::Cli::Base
 
   desc "rollback [VERSION]", "Rollback app to VERSION"
   def rollback(version)
-    MRSK.version = version
+    MRSK.config.version = version
 
     if container_name_available?(MRSK.config.service_with_version)
       say "Start version #{version}, then wait #{MRSK.config.readiness_delay}s for app to boot before stopping the old version...", :magenta