az containerapp identity assign - work locally and not in azure devops

[walnut-co]

Describe the bug

                - task: AzureCLI@2
                  displayName: 'Assign Managed Identity and Update Container App'
                  inputs:
                    azureSubscription: $(serviceConnection)
                    scriptType: bash
                    scriptLocation: inlineScript
                    inlineScript: |
                      az config set extension.use_dynamic_install=yes_without_prompt 
                      az provider register --namespace Microsoft.App

                      # ASSIGN THE IDENTITY
                      az containerapp identity assign \
                        --name $(image-name) \
                        --resource-group $(resource-group) \ 
                        --user-assigned '$(managed-identity-name)'

this task in azure devops not working with cli version of 2.77. however it works locally with all the latest version like 2.76 and 2.7..

Related command

az containerapp identity assign
--name $(image-name)
--resource-group $(resource-group) \
--user-assigned '$(managed-identity-name)'

Errors

ERROR: unrecognized arguments:

Examples from AI knowledge base:
https://aka.ms/cli_ref
Read more about the command in reference docs
/home/vsts/work/_temp/azureclitaskscript1759214236821.sh: line 18: --user-assigned: command not found

Issue script & Debug output

ERROR: unrecognized arguments:

Examples from AI knowledge base:
https://aka.ms/cli_ref
Read more about the command in reference docs
/home/vsts/work/_temp/azureclitaskscript1759214236821.sh: line 18: --user-assigned: command not found

Expected behavior

should work

Environment Summary

/usr/bin/az --version
azure-cli 2.77.0

core 2.77.0
telemetry 1.1.0

Extensions:
azure-devops 1.0.2

Dependencies:
msal 1.34.0b1
azure-mgmt-resource 23.3.0

Python location '/opt/az/bin/python3'
Config directory '/home/vsts/.azure'
Extensions directory '/opt/az/azcliextensions'

Python (Linux) 3.13.7 (main, Aug 26 2025, 08:47:19) [GCC 13.3.0]

Additional context

No response

[yonzhan]

Thank you for opening this issue, we will look into it.

[github-actions]

Here are some similar issues that might help you. Please check if they can solve your problem.

• az aro create: --enable-managed-identity and related identity arguments not supported in CLI versions 2.77.0 #32120

---

Possible solution (Extracted from existing issue, might be incorrect; please verify carefully)

I've re-built the az aro preview extension and published it to https://aka.ms/az-aroext-latest. It seems to be working on 2.77.0 now. Can you try it and confirm that the issue is resolved for you?

Reference:

• az aro create: --enable-managed-identity and related identity arguments not supported in CLI versions 2.77.0 #32120 (comment)

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