Azure Devops: how configure my pipeline script to trigger another pipeline with different repo? - azure

Question

I have my own pipeline p-A with repository r-A, and pipeline p-B with another repo r-B.
I want to update the pipeline script for p-A only, to trigger the p-B actively, without any modification in p-B.
Below is the yaml pipeline script for p-B, which is already set up to run with schedule
pool:
name: 'workflow_test_pool'
schedules:
- cron: "0 19 * * *"
displayName: run test every day at 8PM CET
branches:
include:
- main
always: true
trigger: none
jobs:
- job:
timeoutInMinutes: 30
steps:
- script: |
python -m pytest tests/ -s
displayName: 'Run the test'
below is the pipeline script main.yaml for p-A
pool:
name: 'workflow_test_pool'
stages:
#########################
- template: pipeline2/p1.yaml
############################
- template: pipeline2/p2.yaml
parameters:
dependsOn:
- FirstPipeline
so the question is, how to trigger the pipeline p-B in pipeline2/p2.yaml(from p-A)?

Answer 1

You can create PowerShell script task as the last step of the pipeline to trigger pipeline p-B through REST API. You will have to maintain Personal Access Token, ideally as secret variable.
REST API call you will use:
https://learn.microsoft.com/en-us/rest/api/azure/devops/pipelines/runs/run-pipeline?view=azure-devops-rest-7.1
Detailed step-by-step guide:
https://blog.geralexgr.com/cloud/trigger-azure-devops-build-pipelines-using-rest-api

Answer 2

Azure DevOps supports multiple repositories checkout, you can just reference resources function in your YAML script and call another repository to trigger from the pipeline.
YAML code :-
# Starter pipeline
# Start with a minimal pipeline that you can customize to build and deploy your code.
# Add steps that build, run tests, deploy, and more:
# https://aka.ms/yaml
pool:
vmImage: ubuntu-latest
workspace:
clean: all
resources:
repositories:
- repository: repo_a
type: git
name: InternalProjects/repo_a
trigger:
- main
- release
- repository: repo_b
type: git
name: InternalProjects/repo_b
trigger:
- main
steps:
- checkout: repo_a
- checkout: repo_b
- script: dir $(Build.SourcesDirectory)
I am running this pipeline from repo_a and the repo_a and repo_b both ran successfully like below:-
Output :-
You can directly run any task from pipeline with multiple repositories like below:-
# Starter pipeline
# Start with a minimal pipeline that you can customize to build and deploy your code.
# Add steps that build, run tests, deploy, and more:
# https://aka.ms/yaml
pool:
vmImage: ubuntu-latest
workspace:
clean: all
resources:
repositories:
- repository: repo_a
type: git
name: InternalProjects/repo_a
trigger:
- main
- release
- repository: repo_b
type: git
name: InternalProjects/repo_b
trigger:
- main
steps:
- checkout: repo_a
- checkout: repo_b
- task: AzureCLI#2
inputs:
azureSubscription: 'Subscription-name(sub-id)'
scriptType: 'bash'
scriptLocation: 'inlineScript'
inlineScript: 'az resource list --location uksouth'
Output:-
References :-
Check out multiple repositories in your pipeline - Azure Pipelines | Microsoft Learn
Trigger azure Devops pipeline from another repository - GeralexGR
Multiple Repositories in a Single Azure Pipeline - DEV Community 👩‍💻👨‍💻