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Azure Pipeline Agent Communication mechanism

Question
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Hello,
We are using DevOps VSTS as our repository and built Build and Release pipelines to deploy from Azure to OnPrem servers.
My questions are:
1) What is the communication process to download build artifacts from Azure to OnPrem servers. From your documentation here: https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/agents?view=azure-devops, sounds like Azure Pipeline Agents always initiate the communication. But how does it know that there're new build artifacts or there's a Release Pipeline task that needs to be executed etc. If this Pipeline Agent to Azure communication happens in regular intervals, how often does it do it.
2) If any communication is initiated from Azure, how does the Pipeline Agents verify/validate that it is coming from a good source. Security is the concern here. What is the high level security mechanism to protect the OnPrem servers.
Thanks,
Noor Huda
- Moved by KrishnaG - MSFTMicrosoft employee Thursday, May 16, 2019 12:54 PM
- Moved by BhargaviAnnadevara-MSFTMicrosoft employee Monday, May 20, 2019 4:46 PM
Wednesday, May 15, 2019 6:43 PM
Answers
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Hello nhuda,
Thanks for reaching out! Since Visual Studio Team Services is now Azure DevOps Services, TFS forum has been locked; It is still available for review in the Archived Forums folder. The discussion for VSTS has moved. Report a problem or provide a suggestion on Developer Community, get advice on Stack Overflow, and get support on Azure DevOps Support.
- Proposed as answer by Richard MuellerMVP, Banned Tuesday, May 21, 2019 12:45 PM
- Marked as answer by Dave PatrickMVP Friday, May 24, 2019 3:10 PM
Monday, May 20, 2019 4:41 PM -
Hello,
you could ask here: https://social.msdn.microsoft.com/Forums/en-US/home?category=windowsazureplatform
Regards, Guido
- Proposed as answer by Richard MuellerMVP, Banned Tuesday, May 21, 2019 12:46 PM
- Marked as answer by Dave PatrickMVP Friday, May 24, 2019 3:11 PM
Tuesday, May 21, 2019 6:13 AM
All replies
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Hello nhuda,
Thanks for reaching out! Since Visual Studio Team Services is now Azure DevOps Services, TFS forum has been locked; It is still available for review in the Archived Forums folder. The discussion for VSTS has moved. Report a problem or provide a suggestion on Developer Community, get advice on Stack Overflow, and get support on Azure DevOps Support.
- Proposed as answer by Richard MuellerMVP, Banned Tuesday, May 21, 2019 12:45 PM
- Marked as answer by Dave PatrickMVP Friday, May 24, 2019 3:10 PM
Monday, May 20, 2019 4:41 PM -
Hello,
you could ask here: https://social.msdn.microsoft.com/Forums/en-US/home?category=windowsazureplatform
Regards, Guido
- Proposed as answer by Richard MuellerMVP, Banned Tuesday, May 21, 2019 12:46 PM
- Marked as answer by Dave PatrickMVP Friday, May 24, 2019 3:11 PM
Tuesday, May 21, 2019 6:13 AM -
Hello Everyone,
Sorry I got into the incorrect place.
But if my post was moved, shouldn't I have received a notification?
Anyhow, I will go to the url provided by Guido and try to search it up. Don't want to create a second one.
Thanks to all of you.
Noor
Noor Huda
Tuesday, May 21, 2019 8:50 PM