Can not configure the agent behind a proxy.

[ARMAAN7139]

Issue Title

The agent is failing to connect no matter how I configure the proxy.

here is the agent logs:

[2019-04-29 20:36:15Z ERR LocationServer] System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.Http.CurlException: Failed initialization
at System.Net.Http.CurlHandler.ThrowIfCURLEError(CURLcode error)
at System.Net.Http.CurlHandler.EasyRequest.SetNetworkingOptions()
at System.Net.Http.CurlHandler.EasyRequest.InitializeCurl()
at System.Net.Http.CurlHandler.MultiAgent.ActivateNewRequest(EasyRequest easy)
--- End of inner exception stack trace ---
at Microsoft.VisualStudio.Services.Common.VssHttpRetryMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts) at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync(HttpRequestMessage message, HttpCompletionOption completionOption, Object userState, CancellationToken cancellationToken) at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync[T](HttpRequestMessage message, Object userState, CancellationToken cancellationToken) at Microsoft.VisualStudio.Services.Location.Client.LocationHttpClient.GetConnectionDataAsync(ConnectOptions connectOptions, Int64 lastChangeId, CancellationToken cancellationToken, Object userState) at Microsoft.VisualStudio.Services.WebApi.Location.VssServerDataProvider.ConnectAsync(ConnectOptions connectOptions, CancellationToken cancellationToken) at Microsoft.VisualStudio.Services.Agent.LocationServer.ConnectAsync(VssConnection jobConnection) [2019-04-29 20:36:16Z INFO VisualStudioServices] Starting operation Location.GetConnectionData [2019-04-29 20:36:16Z ERR VisualStudioServices] GET request to https://bpt-informationsecurity-cat-com.visualstudio.com/_apis/connectionData?connectOptions=1&lastChangeId=-1&lastChangeId64=-1 failed. System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.Http.CurlException: Failed initialization at System.Net.Http.CurlHandler.ThrowIfCURLEError(CURLcode error) at System.Net.Http.CurlHandler.EasyRequest.SetNetworkingOptions() at System.Net.Http.CurlHandler.EasyRequest.InitializeCurl() at System.Net.Http.CurlHandler.MultiAgent.ActivateNewRequest(EasyRequest easy) --- End of inner exception stack trace --- at Microsoft.VisualStudio.Services.Common.VssHttpMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) at Microsoft.VisualStudio.Services.Common.VssHttpRetryMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) [2019-04-29 20:36:16Z INFO VisualStudioServices] Finished operation Location.GetConnectionData [2019-04-29 20:36:16Z INFO LocationServer] Catch exception during connect. 2 attempt left. [2019-04-29 20:36:16Z ERR LocationServer] System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.Http.CurlException: Failed initialization at System.Net.Http.CurlHandler.ThrowIfCURLEError(CURLcode error) at System.Net.Http.CurlHandler.EasyRequest.SetNetworkingOptions() at System.Net.Http.CurlHandler.EasyRequest.InitializeCurl() at System.Net.Http.CurlHandler.MultiAgent.ActivateNewRequest(EasyRequest easy) --- End of inner exception stack trace --- at Microsoft.VisualStudio.Services.Common.VssHttpRetryMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)
at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync(HttpRequestMessage message, HttpCompletionOption completionOption, Object userState, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync[T](HttpRequestMessage message, Object userState, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.Location.Client.LocationHttpClient.GetConnectionDataAsync(ConnectOptions connectOptions, Int64 lastChangeId, CancellationToken cancellationToken, Object userState)
at Microsoft.VisualStudio.Services.WebApi.Location.VssServerDataProvider.ConnectAsync(ConnectOptions connectOptions, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.Agent.LocationServer.ConnectAsync(VssConnection jobConnection)
[2019-04-29 20:36:16Z INFO VisualStudioServices] Starting operation Location.GetConnectionData
[2019-04-29 20:36:16Z ERR VisualStudioServices] GET request to https://bpt-informationsecurity-cat-com.visualstudio.com/_apis/connectionData?connectOptions=1&lastChangeId=-1&lastChangeId64=-1 failed. System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.Http.CurlException: Failed initialization
at System.Net.Http.CurlHandler.ThrowIfCURLEError(CURLcode error)
at System.Net.Http.CurlHandler.EasyRequest.SetNetworkingOptions()
at System.Net.Http.CurlHandler.EasyRequest.InitializeCurl()
at System.Net.Http.CurlHandler.MultiAgent.ActivateNewRequest(EasyRequest easy)
--- End of inner exception stack trace ---
at Microsoft.VisualStudio.Services.Common.VssHttpMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.Common.VssHttpRetryMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
[2019-04-29 20:36:16Z INFO VisualStudioServices] Finished operation Location.GetConnectionData
[2019-04-29 20:36:16Z INFO LocationServer] Catch exception during connect. 1 attempt left.
[2019-04-29 20:36:16Z ERR LocationServer] System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.Http.CurlException: Failed initialization
at System.Net.Http.CurlHandler.ThrowIfCURLEError(CURLcode error)
at System.Net.Http.CurlHandler.EasyRequest.SetNetworkingOptions()
at System.Net.Http.CurlHandler.EasyRequest.InitializeCurl()
at System.Net.Http.CurlHandler.MultiAgent.ActivateNewRequest(EasyRequest easy)
--- End of inner exception stack trace ---
at Microsoft.VisualStudio.Services.Common.VssHttpRetryMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts) at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync(HttpRequestMessage message, HttpCompletionOption completionOption, Object userState, CancellationToken cancellationToken) at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync[T](HttpRequestMessage message, Object userState, CancellationToken cancellationToken) at Microsoft.VisualStudio.Services.Location.Client.LocationHttpClient.GetConnectionDataAsync(ConnectOptions connectOptions, Int64 lastChangeId, CancellationToken cancellationToken, Object userState) at Microsoft.VisualStudio.Services.WebApi.Location.VssServerDataProvider.ConnectAsync(ConnectOptions connectOptions, CancellationToken cancellationToken) at Microsoft.VisualStudio.Services.Agent.LocationServer.ConnectAsync(VssConnection jobConnection) [2019-04-29 20:36:16Z INFO VisualStudioServices] Starting operation Location.GetConnectionData [2019-04-29 20:36:16Z ERR VisualStudioServices] GET request to https://bpt-informationsecurity-cat-com.visualstudio.com/_apis/connectionData?connectOptions=1&lastChangeId=-1&lastChangeId64=-1 failed. System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.Http.CurlException: Failed initialization at System.Net.Http.CurlHandler.ThrowIfCURLEError(CURLcode error) at System.Net.Http.CurlHandler.EasyRequest.SetNetworkingOptions() at System.Net.Http.CurlHandler.EasyRequest.InitializeCurl() at System.Net.Http.CurlHandler.MultiAgent.ActivateNewRequest(EasyRequest easy) --- End of inner exception stack trace --- at Microsoft.VisualStudio.Services.Common.VssHttpMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) at Microsoft.VisualStudio.Services.Common.VssHttpRetryMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) [2019-04-29 20:36:16Z INFO VisualStudioServices] Finished operation Location.GetConnectionData [2019-04-29 20:36:16Z INFO CommandSettings] Flag 'unattended': 'False' [2019-04-29 20:36:16Z ERR Terminal] WRITE ERROR (exception): [2019-04-29 20:36:16Z ERR Terminal] System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.Http.CurlException: Failed initialization at System.Net.Http.CurlHandler.ThrowIfCURLEError(CURLcode error) at System.Net.Http.CurlHandler.EasyRequest.SetNetworkingOptions() at System.Net.Http.CurlHandler.EasyRequest.InitializeCurl() at System.Net.Http.CurlHandler.MultiAgent.ActivateNewRequest(EasyRequest easy) --- End of inner exception stack trace --- at Microsoft.VisualStudio.Services.Common.VssHttpRetryMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)
at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync(HttpRequestMessage message, HttpCompletionOption completionOption, Object userState, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.WebApi.VssHttpClientBase.SendAsync[T](HttpRequestMessage message, Object userState, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.Location.Client.LocationHttpClient.GetConnectionDataAsync(ConnectOptions connectOptions, Int64 lastChangeId, CancellationToken cancellationToken, Object userState)
at Microsoft.VisualStudio.Services.WebApi.Location.VssServerDataProvider.ConnectAsync(ConnectOptions connectOptions, CancellationToken cancellationToken)
at Microsoft.VisualStudio.Services.Agent.LocationServer.ConnectAsync(VssConnection jobConnection)
at Microsoft.VisualStudio.Services.Agent.Listener.Configuration.ConfigurationManager.IsHostedServer(String serverUrl, VssCredentials credentials)
at Microsoft.VisualStudio.Services.Agent.Listener.Configuration.ConfigurationManager.ConfigureAsync(CommandSettings command)
[2019-04-29 20:36:16Z ERR Terminal] WRITE ERROR: Failed to connect. Try again or ctrl-c to quit
[2019-04-29 20:36:16Z INFO CommandSettings] Arg 'url': ''
[2019-04-29 20:36:16Z INFO CommandSettings] Flag 'unattended': 'False'
[2019-04-29 20:36:16Z INFO PromptManager] ReadValue
[2019-04-29 20:36:16Z INFO Terminal] WRITE: Enter server URL >
[2019-04-29 20:36:16Z INFO Terminal] READ LINE
[2019-04-29 20:36:58Z INFO Terminal] WRITE LINE: Exiting...

[ARMAAN7139]

Adding the new curl lib worked for me.

[cawoodm]

Could you elaborate @ARMAAN7139 ? What solved this for you?

[4F2E4A2E]

I am experiencing the same error all over different agent version:
at System.Net.Http.CurlHandler.ThrowIfCURLEError(CURLcode error)

Pls anyone, what is this? Can you provide some dotnet new console example code to reproduce this in a manner that brings us closer to a solution?

all agent dependencies: installed and functional
all dotnet dependencies: installed and functional
curl: works
csharp-example-code: works
libcurl: works
openssh: works
ssl connections in any way: works
dotnet dependencies and tools: works

azure agent for linux: does not work at all

Experiencing the same behavior on rhel6 with curl 7.67, no matter what I do.
openssh, curl and dotnet-console tests to the very same host can be established are nominal

but with the agent it's not working at all

[cawoodm]

We had similar issues and I would suggest 2 things to try:

• Set the environment variable https_proxy (note the httpS) in addition to http_proxy: my experience was the task was ignoring http_proxy for HTTPS requests
• If that fails try downgrading the agent to say 2.165.0