azure-pipelines-tasks: Azure App Service Deploy fails behind proxy

Required Information

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Question, Bug, or Feature?
Type: Bug

Enter Task Name: AzureRmWebAppDeployment

Environment

• Server - Azure DevOps Server 2019

  • If using TFS on-premises, provide the version: 17.143.28621.4 (AzureDevOps2019)

• Agent - Private:

  • If using private agent, provide the OS of the machine running the agent and the agent version:

  • Windows Server 2016 (version 1607)

  • Agent Version: 2.144.2

Issue Description

Task: Azure App Service Deploy. Version: 3.4.16.

When attempting to deploy to Azure app service from behind our corporate proxy, the task fails with the following error:

[error]Error: Failed to fetch App Service '*****' publishing credentials. Error: tunneling socket could not be established, cause=getaddrinfo ENOTFOUND 8080 8080:80

The private agents I have running have all be configured following this guide https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/proxy?view=azure-devops&tabs=windows and are able to communicate through our proxy and download packages from nuget without issue as part of our build pipelines. It appears that the Azure App Service Deploy task is using node to communicate with Azure but node doesn’t appear to have any knowledge of the proxy config that has been applied to the agent.

Task logs

[Enable debug logging and please provide the zip file containing all the logs for a speedy resolution]

Troubleshooting

Checkout how to troubleshoot failures and collect debug logs: https://docs.microsoft.com/en-us/vsts/build-release/actions/troubleshooting

Error logs

Release.zip