[Containerapp] az containerapp sessionpool create: Add Shell container type (#9361)

* Update parameters

* update history

* add help infos

* update test

* fix comment

* remove shell support

* update test file

* Revert "remove shell support"

This reverts commit 7766ea8.

* remove GPU support

* update test file

* fix test issue

---------

Co-authored-by: Shichao Qiu <[email protected]>

Author: ShichaoQiu

src/containerapp/HISTORY.rst

@@ -5,6 +5,7 @@ Release History
 upcoming
 ++++++
 * 'az containerapp env premium-ingress add/update': remove `--min-replicas` and `--max-replicas`
+* 'az containerapp sessionpool create': Add `Shell` container type
 
 1.2.0b4
 ++++++

src/containerapp/azext_containerapp/_help.py

@@ -1967,6 +1967,10 @@
       text: |
           az containerapp sessionpool create -n mysessionpool -g MyResourceGroup \\
               --location eastasia
+    - name: Create or update a Session Pool with container type Shell default settings.
+      text: |
+          az containerapp sessionpool create -n mysessionpool -g MyResourceGroup \\
+              --container-type Shell --location westus3
     - name: Create or update a Session Pool with container type PythonLTS, with max concurrent sessions is 30, ready session instances 20.
       text: |
           az containerapp sessionpool create -n mysessionpool -g MyResourceGroup \\

src/containerapp/azext_containerapp/_params.py

@@ -451,7 +451,7 @@ def load_arguments(self, _):
         c.argument('network_status', arg_type=get_enum_type(["EgressEnabled", "EgressDisabled"]), help="Egress is enabled for the Sessions or not.")
 
     with self.argument_context('containerapp sessionpool create', arg_group='Configuration') as c:
-        c.argument('container_type', arg_type=get_enum_type(["CustomContainer", "PythonLTS", "NodeLTS"]), help="The pool type of the Session Pool, default='PythonLTS'")
+        c.argument('container_type', arg_type=get_enum_type(["CustomContainer", "PythonLTS", "NodeLTS", "Shell"]), help="The pool type of the Session Pool, default='PythonLTS'")
         c.argument('lifecycle_type', arg_type=get_enum_type(["Timed", "OnContainerExit"]), help="The lifecycle type of the Session Pool", default='Timed')
 
     with self.argument_context('containerapp sessionpool update', arg_group='Configuration') as c: