Trigger devops pipeline from azure function

Question

We are trying to trigger a yaml pipeline from azure function. We are using managed identity using federated credential as authentication.

Can you help with what is the "IDENTITY_ENDPOINT" and "IDENTITY_HEADER" to be used for token generation? W see the below error currently.

2024-10-21T23:09:34Z [Error] Error triggering pipeline. Status Code: InternalServerError. Error:

Answer 1

Hello colleague @Anonymous

To generate a token, you can use the following code snippet:

import os from azure.identity
import DefaultAzureCredential from azure.devops.connection
import Connection 

# Set the IDENTITY_ENDPOINT and IDENTITY_HEADER environment variables 
os.environ["IDENTITY_ENDPOINT"] = "http://169.254.169.254/metadata/identity/oauth2/token"
os.environ["IDENTITY_HEADER"] = "X-IDENTITY-HEADER"

# Create a connection to Azure DevOps using the DefaultAzureCredential
credential = DefaultAzureCredential()
connection = Connection(base_url="[https://dev.azure.com/{organization}]()", creds=credential)

# Get the pipeline client
pipeline_client = connection.clients.get_pipeline_client()

# Trigger the pipeline
response = pipeline_client.run_pipeline(project="{project}", pipeline_id="{pipeline_id}", parameters="{parameters}")

Make sure to replace the {organization}, {project}, {pipeline_id}, and {parameters} placeholders with the appropriate values for your pipeline.

Also, ensure that the Azure Function has the necessary permissions to trigger the pipeline. Regarding the error you are seeing, InternalServerError typically indicates an issue on the server side. You may want to check the logs for your pipeline to see if there are any errors there.

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