Tag new builds with latest

lib/mrsk/commands/builder/base.rb

@@ -13,6 +13,10 @@ class Mrsk::Commands::Builder::Base < Mrsk::Commands::Base
     argumentize "--secret", secrets.collect { |secret| [ "id", secret ] }
   end
 
+  def build_tags
+    [ "-t", config.absolute_image, "-t", config.latest_image ]
+  end
+
   private
     def args
       (config.builder && config.builder["args"]) || {}

lib/mrsk/commands/builder/multiarch.rb

@@ -12,7 +12,7 @@ class Mrsk::Commands::Builder::Multiarch < Mrsk::Commands::Builder::Base
       "--push",
       "--platform", "linux/amd64,linux/arm64",
       "--builder", builder_name,
-      "-t", config.absolute_image,
+      *build_tags, 
       *build_args,
       *build_secrets,
       "."

lib/mrsk/commands/builder/native.rb

@@ -9,7 +9,7 @@ class Mrsk::Commands::Builder::Native < Mrsk::Commands::Builder::Base
 
   def push
     combine \
-      docker(:build, "-t", config.absolute_image, *build_args, *build_secrets, "."),
+      docker(:build, *build_tags, *build_args, *build_secrets, "."),
       docker(:push, config.absolute_image)
   end
 

lib/mrsk/commands/builder/native/remote.rb

@@ -16,7 +16,7 @@ class Mrsk::Commands::Builder::Native::Remote < Mrsk::Commands::Builder::Native
       "--push",
       "--platform", platform,
       "--builder", builder_name,
-      "-t", config.absolute_image,
+      *build_tags,
       *build_args,
       *build_secrets,
       "."