container.rb in percheron-0.6.0

- old
+ new
@@ -1,8 +1,123 @@
-require 'percheron/container/main'
-require 'percheron/container/null'
-require 'percheron/container/actions'
-
 module Percheron
-  module Container
+  class Container
+
+    extend Forwardable
+    extend ConfigDelegator
+
+    def_delegators :container_config, :name
+
+    def_config_item_with_default :container_config, false, :auto_recreate
+    def_config_item_with_default :container_config, [], :env, :ports, :volumes, :dependant_container_names, :pre_build_scripts, :post_create_scripts, :post_start_scripts
+
+    alias_method :auto_recreate?, :auto_recreate
+
+    def initialize(config, stack, container_name)
+      @config = config
+      @stack = stack
+      @container_name = container_name
+      valid?
+      self
+    end
+
+    def id
+      exists? ? info.id[0...12] : 'N/A'
+    end
+
+    def image_name
+      '%s:%s' % [ name, version.to_s ]
+    end
+
+    def image
+      Docker::Image.get(image_name)
+    rescue Docker::Error::NotFoundError
+      nil
+    end
+
+    def version
+      Semantic::Version.new(container_config.version)
+    end
+
+    def built_version
+      Semantic::Version.new(exists? ? built_image_version : '0.0.0')
+    end
+
+    def dockerfile
+      container_config.dockerfile ? Pathname.new(File.expand_path(container_config.dockerfile, config.file_base_path)): nil
+    end
+
+    def exposed_ports
+      ports.inject({}) do |all, p|
+        all[p.split(':')[1]] = {}
+        all
+      end
+    end
+
+    def links
+      dependant_container_names.map do |container_name|
+        '%s:%s' % [ container_name, container_name ]
+      end
+    end
+
+    def docker_container
+      Docker::Container.get(name)
+    rescue Docker::Error::NotFoundError, Excon::Errors::SocketError
+      NullContainer.new
+    end
+
+    def dependant_containers
+      dependant_container_names.inject({}) do |all, container_name|
+        all[container_name] = stack.filter_containers[container_name]
+        all
+      end
+    end
+
+    def metastore_key
+      @metastore_key ||= 'stacks.%s.containers.%s' % [ stack.name, name ]
+    end
+
+    def current_dockerfile_md5
+      Digest::MD5.file(dockerfile).hexdigest
+    end
+
+    def dockerfile_md5
+      $metastore.get("#{metastore_key}.dockerfile_md5")
+    end
+
+    def running?
+      exists? && info.State.Running
+    end
+
+    def exists?
+      !info.empty?
+    end
+
+    def image_exists?
+      !!image
+    end
+
+    def dependant_containers?
+      !dependant_container_names.empty?
+    end
+
+    def valid?
+      Validators::Container.new(self).valid?
+    end
+
+    private
+
+      attr_reader :config, :stack, :container_name
+
+      def built_image_version
+        info.Config.Image.split(':')[1]
+      end
+
+      def info
+        Hashie::Mash.new(docker_container.info)
+      end
+
+      def container_config
+        @container_config ||= stack.container_configs[container_name] || Hashie::Mash.new({})
+      end
+
   end
 end