Merge pull request #281047 from cloga/lochen/credential-less-new

add UAI assign role

Author: prmerger-automator[bot]

articles/machine-learning/prompt-flow/how-to-manage-compute-session.md

@@ -81,6 +81,9 @@ One flow binds to one compute session. You can start a compute session on a flow
         |Azure Key Vault (when using [RBAC permission model](../../key-vault/general/rbac-guide.md))|Contributor (control plane) + Key Vault Administrator (data plane)|
         |Azure Container Registry|Contributor|
         |Azure Application Insights|Contributor|
+        
+        > [!NOTE]
+        > The job submitter need have `assign` permission on user assigned managed identity, you can assign `Managed Identity Operator` role, as every time create serverless compute session, it will assign user assigned managed identity to compute.
 
     - If you choose compute instance as compute type, you can only set idle shutdown time. 
         - As it's running on an existing compute instance the VM size is fixed and can't change in session side.
@@ -168,7 +171,7 @@ Learn full end to end code first example: [Integrate prompt flow with LLM-based
 ---
 
   > [!NOTE]
-  > The idle shutdown is one hour if you are using CLI/SDK to submit a flow run. You can go to compute page to release compute
+  > The idle shutdown is one hour if you are using CLI/SDK to submit a flow run. You can go to compute page to release compute.
 
 ### Reference files outside of the flow folder
 Sometimes, you might want to reference a `requirements.txt` file that is outside of the flow folder. For example, you might have complex project that includes multiple flows, and they share the same `requirements.txt` file. To do this, You can add this field `additional_includes` into the `flow.dag.yaml`. The value of this field is a list of the relative file/folder path to the flow folder. For example, if requirements.txt is in the parent folder of the flow folder, you can add `../requirements.txt` to the `additional_includes` field.