Add local/remote builder combo for multiarch

lib/tasks/mrsk/build.rake

@@ -23,5 +23,71 @@ namespace :mrsk do
     task :pull do
       on(MRSK.config.hosts) { execute *MRSK.builder.pull }
     end
+
+    desc "Create a local buildx setup to produce multi-arch images"
+    task :create do
+      run_locally do
+        execute *MRSK.builder.create
+      end
+    end
+
+    desc "Remove local buildx setup"
+    task :remove do
+      run_locally do
+        execute *MRSK.builder.remove
+      end
+    end
+
+    namespace :remote do
+      desc "Create local and remote buildx setup for fully native multi-arch builds"
+      task create: %w[ create:context create:buildx ]
+
+      namespace :create do
+        task :context do
+          if MRSK.config.builder && 
+              (local = MRSK.config.builder["local"]) &&
+              (remote = MRSK.config.builder["remote"])
+            run_locally do
+              execute *MRSK.builder.create_context(local["arch"], local["host"])
+              execute *MRSK.builder.create_context(remote["arch"], remote["host"])
+            end
+          else
+            error "Missing configuration of builder:local/remote in config"
+          end
+        end
+
+        task :buildx do
+          if MRSK.config.builder && 
+              (local = MRSK.config.builder["local"]) &&
+              (remote = MRSK.config.builder["remote"])
+            run_locally do
+              execute *MRSK.builder.create_with_context(local["arch"])
+              execute *MRSK.builder.append_context(remote["arch"])
+            end
+          else
+            error "Missing configuration of builder:local/remote in config"
+          end
+        end
+      end
+
+
+      desc "Remove local and remote buildx setup"
+      task remove: %w[ remove:context mrsk:build:remove ]
+
+      namespace :remove do
+        task :context do
+          if MRSK.config.builder && 
+              (local = MRSK.config.builder["local"]) &&
+              (remote = MRSK.config.builder["remote"])
+            run_locally do
+              execute *MRSK.builder.remove_context(local["arch"])
+              execute *MRSK.builder.remove_context(remote["arch"])
+            end
+          else
+            error "Missing configuration of builder:local/remote in config"
+          end
+        end
+      end
+    end
   end
 end