Ruby on rails Rails：使用带有Bluemix对象存储v2的Fog（回形针）

我尝试使用Bluemix对象存储来存储一些用户内容（图像）。 它运行Openstack Swift

根据，它支持绑定上下文中的Keystone V2或Keystone v3中的Keystone V2身份验证。 由于我的主应用程序不在同一个Bluemix环境中，我更喜欢使用unbound，但也可以通过虚拟应用程序使用bound

根据Fog gem和Fog源代码的一些发行说明，这两种身份验证方法都受支持。我用的是雾1.31.0

使用unbound方法，我在创建Bluemix服务后获得以下凭据。出于隐私原因，所有值都会略有更改

{
  "credentials": {
    "auth_url": "https://identity.open.softlayer.com",
    "project": "object_storage_af31119c",
    "projectId": "82e592b46bb84232370f9657fec2b576",
    "region": "dallas",
    "userId": "02faa40ff3f342faaafdty1a75bd901a",
    "username": "user_28uigjab0a2ef799eb5280c786a2ff503c978aaf",
    "password": "V3i~]oYU8/UMNvVm",
    "domainId": "3f160e53e6114a748a34724005a458ea",
    "domainName": "779543"
  }
} 

fog openstack文档包含配置示例：

  service = Fog::Storage.new({
  :provider            => 'OpenStack',   # OpenStack Fog provider
  :openstack_username  => USERNAME,      # Your OpenStack Username
  :openstack_api_key   => PASSWORD,      # Your OpenStack Password
  :openstack_auth_url  => 'http://YOUR_OPENSTACK_ENDPOINT:PORT/v2.0/tokens'
})

我填写了我的凭证，并将其用作身份验证url。 这是我得到的错误：

Uncaught exception: Expected([200, 204]) <=> Actual(401 Unauthorized)
excon.error.response
:body => "{\"error\": {\"message\": \"The request you have made requires 
authentication.\", \"code\": 401, \"title\": \"Unauthorized \"}}"

:headers => {
"Content-Length" => "114"
"Content-Type"   => "application/json"
"Date"           => "Fri, 06 Nov 2015 15:08:55 GMT"
"Server"         => "Apache/2.4.6 (CentOS) OpenSSL/1.0.1e-fips mod_wsgi/3.4 Python/2.7.5"
"Vary"           => "X-Auth-Token"
"WWW-Authenticate"       => "Keystone uri=\"https://identity.open.softlayer.com\""
"x-openstack-request-id" => "req-2f68188e-2a9e-45ad-ae18-289ac88b78ae" }
:local_address => "10.0.2.15"
:local_port    => 59407
:reason_phrase => "Unauthorized"
:remote_ip     => "198.23.119.11"
:status        => 401
:status_line   => "HTTP/1.1 401 Unauthorized\r\n"

/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/excon-0.45.3/lib/excon/middlewares/expects.rb:10:in `response_call'
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/excon-0.45.3/lib/excon/middlewares/response_parser.rb:8:in `response_call'
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/excon-0.45.3/lib/excon/connection.rb:372:in `response'
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/excon-0.45.3/lib/excon/connection.rb:236:in `request'
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/fog-core-1.31.1/lib/fog/core/connection.rb:81:in `request'
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/fog-1.31.0/lib/fog/openstack/core.rb:331:in `retrieve_tokens_v2'

Uncaught异常：预期（[200204]）实际（401未授权）
excon.error.response
：body=>“{\”error\”：{\”message\“：\”您提出的请求需要
身份验证。\“，\“代码\”：401，\“标题\:\“未经授权\”}”
：标题=>{
“内容长度”=>“114”
“内容类型”=>“应用程序/json”
“日期”=>“2015年11月6日星期五15:08:55 GMT”
“服务器”=>“Apache/2.4.6（CentOS）OpenSSL/1.0.1e-fips mod_wsgi/3.4 Python/2.7.5”
“更改”=>“X-Auth-Token”
“WWW Authenticate”=>“Keystone uri=\”https://identity.open.softlayer.com\""
“x-openstack-request-id”=>“req-2f68188e-2a9e-45ad-ae18-289ac88b78ae”}
：本地地址=>“10.0.2.15”
：本地_端口=>59407
：原因\短语=>“未经授权”
：remote_ip=>“198.23.119.11”
：状态=>401
：status\u line=>“HTTP/1.1 401未经授权\r\n”
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/excon-0.45.3/lib/excon/middleware/expects.rb:10:在`应答电话'中
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/excon-0.45.3/lib/excon/middleware/response\u parser.rb:8:in“response\u call”
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/excon-0.45.3/lib/excon/connection.rb:372:在“响应”中
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/excon-0.45.3/lib/excon/connection.rb:236:在“请求”中
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/fog-core-1.31.1/lib/fog/core/connection.rb:81:在“请求”中
/home/startupdeltadev/.rbenv/versions/1.9.3-p551/lib/ruby/gems/1.9.1/gems/fog-1.31.0/lib/fog/openstack/core.rb:331:在“检索令牌”v2中

---

显然，我的凭证没有正确发送。有任何提示吗？

您的Openstack用户属于“779543”域。Identity（Keystone）V3API支持域。我找不到任何关于如何在Fog中使用Keystone v3的好例子。

根据文档

OpenStack标识（Keystone）v2

v2令牌请求是对的POST请求 如图所示 下面是curl命令：

注意：OpenStack标识中没有记录此请求方法 v2网站不能使用租户名称和用户名

Fog:：OpenStack（和许多其他库）使用用户名而不是用户名

您应该以以下方式使用OpenStack Identity（Keystone）v3：

storage = Fog::OpenStack.new({
  :provider                 => 'OpenStack',
  :openstack_auth_url       => credentials['auth_url'],
  :openstack_api_key        => credentials['password'],
  :openstack_project_id     => credentials['projectId'],        
  :openstack_username       => credentials['username'],
  :openstack_domain_name    => credentials['domainName'],#required if you use :openstack_username (otherwise set :openstack_userid)
  :openstack_region         => credentials['region']
})

storage = Fog::OpenStack.new({
  :provider                 => 'OpenStack',
  :openstack_auth_url       => credentials['auth_url'],
  :openstack_api_key        => credentials['password'],
  :openstack_project_id     => credentials['projectId'],        
  :openstack_username       => credentials['username'],
  :openstack_domain_name    => credentials['domainName'],#required if you use :openstack_username (otherwise set :openstack_userid)
  :openstack_region         => credentials['region']
})