azure pipeline how to trigger build from jenkins server and copy files from with self-hosted linux agent to hosted agent and build on hosted agent

Question

my scenario is like this

1. I have Jenkins server which triggers build flow ( this can't be changed )
2. the source code is checkout out from 3 repos to the Jenkins server
3. the files get manipulated and changed on the Jenkins server
4. I installed azure self-hosted Linux agent in the Jenkins server.
   And it is online as I see it on the azure DevOps dashboard.
   in the Azure DevOps, i defined a project that checkouts simple azure-pipelines.yml.
   I want to copy files from the Jenkins server to the azure hosted agent and build there the files. then after the build is done I want to copy back the files to the Jenkins server

my missing part is how do i start the steps in the pipeline in the hosted azure that will listen to the self-hosted Linux server agent that it needs to copy the files?
also how i do trigger the self-hosted server to trigger pipeline steps in the hosted server.

Answer 1

This isn't ideal... But what you could do:

• disable all triggers on your azure pipeline
• disable the repo checkout steps
• add a queue time variable that can hold the location of the contents.
• add a queue time variable that can hold the target location of the outcome.
• on jenkins copy the contents to a central location
• on jenkins, use the Rest API to trigger your Azure Pipelines build, pass the queue time variable
• on Azure Pipelines add a script at the start to grab the contents from the variable location
• on Azure Pipelines add a script at the end to copy the contents from the variable location
• on Jenkins, use the REST API in a loop to detect the status of the pipeline

To get started:

• The docs to the REST API.