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我安装了 gem webmock
,它会在测试套件期间阻止外部连接。安装后,我在运行测试套件时得到了意想不到的结果。
我有点困惑为什么 aws-sdk 在初始化时需要连接到 169.254.169.254
?
rspec spec/models/concerns/posconcern_spec.rb
[Coveralls] Set up the SimpleCov formatter.
[Coveralls] Using SimpleCov's 'rails' settings.
An error occurred while loading ./spec/models/concerns/posconcern_spec.rb.
Failure/Error: require File.expand_path('../../config/environment', __FILE__)
WebMock::NetConnectNotAllowedError:
Real HTTP connections are disabled. Unregistered request: GET http://169.254.169.254/latest/meta-data/iam/security-credentials/ with headers {'Accept'=>'*/*', 'Accept-Encoding'=>'gzip;q=1.0,deflate;q=0.6,identity;q=0.3', 'User-Agent'=>'Ruby'}
You can stub this request with the following snippet:
stub_request(:get, "http://169.254.169.254/latest/meta-data/iam/security-credentials/").
with(headers: {'Accept'=>'*/*', 'Accept-Encoding'=>'gzip;q=1.0,deflate;q=0.6,identity;q=0.3', 'User-Agent'=>'Ruby'}).
to_return(status: 200, body: "", headers: {})
============================================================
# /home/andey/.rvm/gems/ruby-2.3.4/gems/webmock-3.1.0/lib/webmock/http_lib_adapters/net_http.rb:114:in `request'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/instance_profile_credentials.rb:109:in `http_get'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/instance_profile_credentials.rb:90:in `block (2 levels) in get_credentials'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/instance_profile_credentials.rb:105:in `open_connection'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/instance_profile_credentials.rb:88:in `block in get_credentials'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/instance_profile_credentials.rb:121:in `retry_errors'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/instance_profile_credentials.rb:87:in `get_credentials'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/instance_profile_credentials.rb:73:in `block in refresh'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/instance_profile_credentials.rb:121:in `retry_errors'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/instance_profile_credentials.rb:72:in `refresh'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/refreshing_credentials.rb:20:in `initialize'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/instance_profile_credentials.rb:51:in `initialize'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/credential_provider_chain.rb:90:in `new'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/credential_provider_chain.rb:90:in `instance_profile_credentials'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/credential_provider_chain.rb:12:in `block in resolve'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/credential_provider_chain.rb:11:in `each'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/credential_provider_chain.rb:11:in `resolve'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/aws-sdk-core/plugins/request_signer.rb:37:in `block in <class:RequestSigner>'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/configuration.rb:70:in `call'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/configuration.rb:205:in `block in resolve_defaults'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/configuration.rb:57:in `each'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/configuration.rb:57:in `each'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/configuration.rb:204:in `resolve_defaults'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/configuration.rb:200:in `value_at'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/configuration.rb:189:in `block in resolve'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/configuration.rb:189:in `resolve'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/configuration.rb:177:in `apply_defaults'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/configuration.rb:150:in `build!'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/base.rb:68:in `build_config'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/base.rb:19:in `initialize'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/aws-sdk-core-2.10.52/lib/seahorse/client/base.rb:105:in `new'
# ./config/initializers/aws.rb:1:in `<top (required)>'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:268:in `load'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:268:in `block in load'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:240:in `load_dependency'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:268:in `load'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/engine.rb:652:in `block in load_config_initializer'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/activesupport-4.2.9/lib/active_support/notifications.rb:166:in `instrument'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/engine.rb:651:in `load_config_initializer'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/engine.rb:616:in `block (2 levels) in <class:Engine>'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/engine.rb:615:in `each'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/engine.rb:615:in `block in <class:Engine>'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/initializable.rb:30:in `instance_exec'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/initializable.rb:30:in `run'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/initializable.rb:55:in `block in run_initializers'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/initializable.rb:44:in `each'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/initializable.rb:44:in `tsort_each_child'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/initializable.rb:54:in `run_initializers'
# /home/andey/.rvm/gems/ruby-2.3.4/gems/railties-4.2.9/lib/rails/application.rb:352:in `initialize!'
# ./config/environment.rb:5:in `<top (required)>'
# ./spec/rails_helper.rb:3:in `require'
# ./spec/rails_helper.rb:3:in `<top (required)>'
# ./spec/models/concerns/posconcern_spec.rb:1:in `require'
# ./spec/models/concerns/posconcern_spec.rb:1:in `<top (required)>'
repo 的相关链接:
最佳答案
它正在尝试连接到 AWS 元数据服务器以获取 AWS 凭证。所有 AWS 服务器都应该能够连接到内部元数据服务器。
I installed the gem webmock, which blocks external connections during the test suite
你是如何阻止它的?防火墙?添加规则以允许流量流向 169.254.169.254
或 stub 。
脚本正在尝试连接到 AWS 服务。为此,它需要可以通过多种方式提供的凭据。一种方法是使用 AWS IAM 角色并从元数据服务器 (169.254.169.254) 动态获取凭证。您的脚本正在连接到 169.254.169.254
以获取凭据。它可用于稍后连接到 AWS 服务。
关于ruby - 为什么 aws-sdk-ruby 在初始化时连接到 '169.254.169.254'?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/46852199/
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