Connection time out to Azure blob storage

[AbelHu]

After the issue #334 was fixed, now it does not hang. But Connection time out is thrown.

Could you add retry for time out issue with setting max retry count to 10? Thanks.

Logs:
":"Rescued Unknown: Connection timed out - connect(2) for "13.68.167.248" port 443. backtrace: /var/vcap/packages/ruby_azure_cpi/lib/ruby/2.1.0/resolv-replace.rb:23:in initialize' /var/vcap/packages/ruby_azure_cpi/lib/ruby/2.1.0/resolv-replace.rb:23:ininitialize'
/var/vcap/packages/ruby_azure_cpi/lib/ruby/2.1.0/net/http.rb:879:in open' /var/vcap/packages/ruby_azure_cpi/lib/ruby/2.1.0/net/http.rb:879:inblock in connect'
/var/vcap/packages/ruby_azure_cpi/lib/ruby/2.1.0/timeout.rb:76:in timeout' /var/vcap/packages/ruby_azure_cpi/lib/ruby/2.1.0/net/http.rb:878:inconnect'
/var/vcap/packages/ruby_azure_cpi/lib/ruby/2.1.0/net/http.rb:863:in do_start' /var/vcap/packages/ruby_azure_cpi/lib/ruby/2.1.0/net/http.rb:852:instart'
/var/vcap/packages/ruby_azure_cpi/lib/ruby/2.1.0/net/http.rb:1369:in request' /var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/faraday-0.9.2/lib/faraday/adapter/net_http.rb:82:inperform_request'
/var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/faraday-0.9.2/lib/faraday/adapter/net_http.rb:40:in block in call' /var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/faraday-0.9.2/lib/faraday/adapter/net_http.rb:87:inwith_net_http_connection'
/var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/faraday-0.9.2/lib/faraday/adapter/net_http.rb:32:in call' /var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/faraday_middleware-0.10.0/lib/faraday_middleware/response/follow_redirects.rb:76:inperform_with_redirection'
/var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/faraday_middleware-0.10.0/lib/faraday_middleware/response/follow_redirects.rb:64:in call' /var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/faraday-0.9.2/lib/faraday/rack_builder.rb:139:inbuild_response'
/var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/faraday-0.9.2/lib/faraday/connection.rb:377:in run_request' /var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/azure-core-0.1.1/lib/azure/core/http/http_request.rb:145:incall'
/var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/azure-core-0.1.1/lib/azure/core/http/signer_filter.rb:28:in call' /var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/azure-core-0.1.1/lib/azure/core/http/signer_filter.rb:28:incall'
/var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/azure-core-0.1.1/lib/azure/core/http/http_request.rb:99:in block in with_filter' /var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/azure-core-0.1.1/lib/azure/core/service.rb:36:incall'
/var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/azure-core-0.1.1/lib/azure/core/filtered_service.rb:34:in call' /var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/azure-core-0.1.1/lib/azure/core/signed_service.rb:41:incall'
/var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/azure-0.7.4/lib/azure/blob/blob_service.rb:1385:in call' /var/vcap/packages/bosh_azure_cpi/vendor/bundle/ruby/2.1.0/gems/azure-0.7.4/lib/azure/blob/blob_service.rb:785:inget_blob_properties'

[AbelHu]

Copy from Azure/azure-sdk-for-ruby#381

[vinjiang]

@yaxia , please take a look.

[yaxia]

I am looking, will update the status later.

[yaxia]

Please try the retry policy filters provided since 0.10.1.