GitFOSS

@@ -1,5 +1,5 @@
 name: docker
-version: 0.4.0
+version: 0.4.1
 crystal: ">= 0.36.1"
 license: MIT
 authors:

@@ -208,5 +208,5 @@ class Docker::Api::ApiClient
   include Containers
   include Daemon
   include Images
-  include ::Volumes
+  include Volumes
 end

@@ -66,4 +66,16 @@ module Docker::Api::Images
     response = get "/images/#{id}/json"
     Models::Image.from_json response.body
   end
+
+  # Pull an image from a registry.
+  #
+  # Identical to the `docker pull` command.
+  def pull_image(name : String, tag : String? = nil)
+    params = HTTP::Params.build do |param|
+      param.add "name", name
+      param.add "tag", tag.to_s unless tag.nil?
+    end
+    response = get "/images/create?#{params}"
+
+  end
 end

@@ -5,7 +5,7 @@ module Docker::Api::Models
     @[JSON::Field(key: "Id")]
     getter id : String
     @[JSON::Field(key: "Container")]
-    getter container : String
+    getter container : String?
     @[JSON::Field(key: "Comment")]
     getter comment : String
     @[JSON::Field(key: "Os")]

@@ -1,6 +1,6 @@
 require "./response"
 
-module Docker::Api
+module Docker::Api::Models
   struct Volume < Response
     @[JSON::Field(key: "CreatedAt")]
     getter created_at : String

@@ -58,4 +58,12 @@ class Docker::Images
     image_ids = client.images(all, name, filters).map &.id
     image_ids.map &->get(String)
   end
+
+  # Pull an image from a registry.
+  def pull(image : String, tag : String? = nil)
+    parts = image.split(":")
+    name = parts.first
+    tag = parts.last if tag.nil?
+    client.pull_image(name, tag)
+  end
 end