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# ------------------------------------
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
# ------------------------------------
import os
import azure.functions as func
from azure.identity import ManagedIdentityCredential
from azure.storage.blob import BlobServiceClient
EXPECTED_VARIABLES = (
"IDENTITY_USER_DEFINED_IDENTITY_CLIENT_ID",
"IDENTITY_STORAGE_NAME_1",
"IDENTITY_STORAGE_NAME_2",
"MSI_ENDPOINT",
)
def main(req: func.HttpRequest) -> func.HttpResponse:
# capture interesting environment variables for debugging
env = "\n".join(f"{var}: {os.environ.get(var)}" for var in EXPECTED_VARIABLES)
system_success_message = ""
try:
credential_system_assigned = ManagedIdentityCredential()
credential_user_assigned = ManagedIdentityCredential(
client_id=os.environ.get("IDENTITY_USER_DEFINED_IDENTITY_CLIENT_ID")
)
client = BlobServiceClient(
account_url=f"https://{os.environ['IDENTITY_STORAGE_NAME_1']}.blob.core.windows.net",
credential=credential_system_assigned,
)
client2 = BlobServiceClient(
account_url=f"https://{os.environ['IDENTITY_STORAGE_NAME_2']}.blob.core.windows.net",
credential=credential_user_assigned,
)
containers = client.list_containers()
for container in containers:
print(container["name"])
system_success_message = "Successfully acquired token with system-assigned ManagedIdentityCredential"
containers = client2.list_containers()
for container in containers:
print(container["name"])
return func.HttpResponse("Successfully acquired tokens with ManagedIdentityCredential")
except Exception as ex:
return func.HttpResponse(f"Test Failed: {repr(ex)}\n\n{system_success_message}\n\n{env}", status_code=500)
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