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{Compute} az vmss scale: Migrate command to aaz-based implementation#32795

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{Compute} az vmss scale: Migrate command to aaz-based implementation#32795
william051200 wants to merge 1 commit intoAzure:devfrom
william051200:vmss-scale-migration

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Related command

az vmss scale

Description

Migration from mgmt.compute to aaz-based

Testing Guide

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Copilot AI review requested due to automatic review settings February 13, 2026 08:13
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azure-client-tools-bot-prd bot commented Feb 13, 2026

❌AzureCLI-FullTest
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️✔️storage
️✔️latest
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️✔️synapse
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️✔️telemetry
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️✔️util
️✔️latest
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️✔️3.13
❌vm
❌latest
❌3.12
Type Test Case Error Message Line
Failed test_vmss_create_and_modify self = <azure.cli.testsdk.base.ExecutionResult object at 0x7f543864bc80>
cli_ctx = <azure.cli.core.mock.DummyCli object at 0x7f543b691880>
command = 'vmss scale --resource-group cli_test_vmss_create_and_modify000001 --name vmss1 --new-capacity 4'
expect_failure = False

    def in_process_execute(self, cli_ctx, command, expect_failure=False):
        from io import StringIO
        from vcr.errors import CannotOverwriteExistingCassetteException
    
        if command.startswith('az '):
            command = command[3:]
    
        stdout_buf = StringIO()
        logging_buf = StringIO()
        try:
            # issue: stderr cannot be redirect in this form, as a result some failure information
            # is lost when command fails.
>           self.exit_code = cli_ctx.invoke(shlex.split(command), out_file=stdout_buf) or 0
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

src/azure-cli-testsdk/azure/cli/testsdk/base.py:303: 
                                        
env/lib/python3.12/site-packages/knack/cli.py:245: in invoke
    exit_code = self.exception_handler(ex)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/init.py:141: in exception_handler
    return handle_exception(ex)
           ^^^^^^^^^^^^^^^^^^^^
src/azure-cli-testsdk/azure/cli/testsdk/patches.py:33: in handle_main_exception
    raise ex
env/lib/python3.12/site-packages/knack/cli.py:233: in invoke
    cmd_result = self.invocation.execute(args)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/commands/init.py:669: in execute
    raise ex
src/azure-cli-core/azure/cli/core/commands/init.py:737: in run_jobs_serially
    results.append(self.run_job(expanded_arg, cmd_copy))
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/commands/init.py:706: in run_job
    result = cmd_copy(params)
             ^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/commands/init.py:336: in call
    return self.handler(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/commands/command_operation.py:120: in handler
    return op(**command_args)
           ^^^^^^^^^^^^^^^^^^
src/azure-cli/azure/cli/command_modules/vm/custom.py:4497: in scale_vmss
    vmss = VMSSShow(cli_ctx=cmd.cli_ctx)(command_args={
src/azure-cli-core/azure/cli/core/aaz/command.py:155: in call
    return self.handler(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli/azure/cli/command_modules/vm/aaz/latest/vmss/__cmds.py:4932: in handler
    self.execute_operations()
src/azure-cli/azure/cli/command_modules/vm/aaz/latest/vmss/__cmds.py:4964: in execute_operations
    self.VirtualMachineScaleSetsGet(ctx=self.ctx)()
src/azure-cli/azure/cli/command_modules/vm/aaz/latest/vmss/__cmds.py:4984: in call
    session = self.client.send_request(request=request, stream=False, **kwargs)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/aaz/client.py:108: in send_request
    session = self.pipeline.run(request, stream=stream, **kwargs)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:242: in run
    return first_node.send(pipeline_request)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/mgmt/core/policies/base.py:95: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/policies/redirect.py:205: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/policies/retry.py:545: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/aaz/http_policy.py:112: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/base.py:130: in send
    self.sender.send(request.http_request, **request.context.options),
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/azure/core/pipeline/transport/requests_basic.py:375: in send
    response = self.session.request(  # type: ignore
env/lib/python3.12/site-packages/requests/sessions.py:589: in request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/requests/sessions.py:703: in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.12/site-packages/requests/adapters.py:667: in send
    resp = conn.urlopen(
env/lib/python3.12/site-packages/urllib3/connectionpool.py:787: in urlopen
    response = self.make_request(
env/lib/python3.12/site-packages/urllib3/connectionpool.py:534: in make_request
    response = conn.getresponse()
               ^^^^^^^^^^^^^^^^^^
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
         

self = <VCRRequestsHTTPSConnection/mnt/vss/work/1/s/src/azure-cli/azure/cli/command_modules/vm/tests/latest/recordings/test_vmss_create_and_modify.yaml(host='management.azure.com', port=443) at 0x7f54383cbf50>
 = False, kwargs = {}

    def getresponse(self, =False, **kwargs):
        """Retrieve the response"""
        # Check to see if the cassette has a response for this request. If so,
        # then return it
        if self.cassette.can_play_response_for(self.vcr_request):
            log.info(f"Playing response for {self.vcr_request} from cassette")
            response = self.cassette.play_response(self.vcr_request)
            return VCRHTTPResponse(response)
        else:
            if self.cassette.write_protected and self.cassette.filter_request(self.vcr_request):
>               raise CannotOverwriteExistingCassetteException(
                    cassette=self.cassette,
                    failed_request=self.vcr_request,
                )
E               vcr.errors.CannotOverwriteExistingCassetteException: Can't overwrite existing cassette ('/mnt/vss/work/1/s/src/azure-cli/azure/cli/command_modules/vm/tests/latest/recordings/test_vmss_create_and_modify.yaml') in your current record mode ('once').
E               No match for the request (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2025-04-01>)&nbsp;was&nbsp;found.
E               Found 5 similar requests with 1 different matcher(s) :
E               
E               1 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E               Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E               Matchers failed :
E               custom_request_query_matcher - assertion failure :
E               None
E               
E               2 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E               Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E               Matchers failed :
E               custom_request_query_matcher - assertion failure :
E               None
E               
E               3 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E               Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E               Matchers failed :
E               custom_request_query_matcher - assertion failure :
E               None
E               
E               4 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E               Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E               Matchers failed :
E               custom_request_query_matcher - assertion failure :
E               None
E               
E               5 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E               Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E               Matchers failed :
E               custom_request_query_matcher - assertion failure :
E               None

env/lib/python3.12/site-packages/vcr/stubs/init.py:277: CannotOverwriteExistingCassetteException

During handling of the above exception, another exception occurred:

self = <latest.test_vm_commands.VMSSCreateAndModify testMethod=test_vmss_create_and_modify>

    @AllowLargeResponse()
    @ResourceGroupPreparer(name_prefix='cli_test_vmss_create_and_modify')
    def test_vmss_create_and_modify(self):
    
        self.kwargs.update({
            'vmss': 'vmss1',
            'count': 5,
            'new_count': 4,
            'vmss2': self.create_random_name('vmss', 10)
        })
    
        self.cmd('vmss create --admin-password testPassword0 --name {vmss} -g {rg} --admin-username myadmin --image Win2022Datacenter '
                 '--instance-count {count} --orchestration-mode Uniform --lb-sku Standard --vm-sku Standard_B1ls')
    
        self.cmd('vmss show --name {vmss} -g {rg}', checks=[
            self.check('virtualMachineProfile.priority', None),
            self.check('sku.name', 'Standard_B1ls'),
        ])
    
        self.cmd('vmss list',
                 checks=self.check('type(@)', 'array'))
    
        self.cmd('vmss list --resource-group {rg}', checks=[
            self.check('type(@)', 'array'),
            self.check('length(@)', 1),
            self.check('[0].name', '{vmss}'),
            self.check('[0].resourceGroup', '{rg}')
        ])
        self.cmd('vmss list-skus --resource-group {rg} --name {vmss}',
                 checks=self.check('type(@)', 'array'))
        self.cmd('vmss show --resource-group {rg} --name {vmss}', checks=[
            self.check('type(@)', 'object'),
            self.check('name', '{vmss}'),
            self.check('resourceGroup', '{rg}')
        ])
    
        self.cmd('vmss get-os-upgrade-history --resource-group {rg} --name {vmss}', checks=self.is_empty())
        result = self.cmd('vmss list-instances --resource-group {rg} --name {vmss} --query "[].instanceId"').get_output_in_json()
        self.kwargs['instance_ids'] = result[3] + ' ' + result[4]
        self.cmd('vmss update-instances --resource-group {rg} --name {vmss} --instance-ids {instance_ids}')
        self.cmd('vmss get-instance-view --resource-group {rg} --name {vmss}', checks=[
            self.check('type(@)', 'object'),
            self.check('type(virtualMachine)', 'object'),
            self.check('type(statuses)', 'array')
        ])
    
        self.cmd('vmss stop --resource-group {rg} --name {vmss}')
        self.cmd('vmss start --resource-group {rg} --name {vmss}')
        self.cmd('vmss restart --resource-group {rg} --name {vmss}')
    
>       self.cmd('vmss scale --resource-group {rg} --name {vmss} --new-capacity {new_count}')

src/azure-cli/azure/cli/command_modules/vm/tests/latest/test_vm_commands.py:4425: 
 
 
 
 
 
 
 
 
 
 
 
                             
src/azure-cli-testsdk/azure/cli/testsdk/base.py:177: in cmd
    return execute(self.cli_ctx, command, expect_failure=expect_failure).assert_with_checks(checks)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-testsdk/azure/cli/testsdk/base.py:252: in init
    self.in_process_execute(cli_ctx, command, expect_failure=expect_failure)
                                       _ 

self = <azure.cli.testsdk.base.ExecutionResult object at 0x7f543864bc80>
cli_ctx = <azure.cli.core.mock.DummyCli object at 0x7f543b691880>
command = 'vmss scale --resource-group cli_test_vmss_create_and_modify000001 --name vmss1 --new-capacity 4'
expect_failure = False

    def _in_process_execute(self, cli_ctx, command, expect_failure=False):
        from io import StringIO
        from vcr.errors import CannotOverwriteExistingCassetteException
    
        if command.startswith('az '):
            command = command[3:]
    
        stdout_buf = StringIO()
        logging_buf = StringIO()
        try:
            # issue: stderr cannot be redirect in this form, as a result some failure information
            # is lost when command fails.
            self.exit_code = cli_ctx.invoke(shlex.split(command), out_file=stdout_buf) or 0
            self.output = stdout_buf.getvalue()
            self.applog = logging_buf.getvalue()
    
        except CannotOverwriteExistingCassetteException as ex:
>           raise AssertionError(ex)
E           AssertionError: Can't overwrite existing cassette ('/mnt/vss/_work/1/s/src/azure-cli/azure/cli/command_modules/vm/tests/latest/recordings/test_vmss_create_and_modify.yaml') in your current record mode ('once').
E           No match for the request (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2025-04-01>)&nbsp;was&nbsp;found.
E           Found 5 similar requests with 1 different matcher(s) :
E           
E           1 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E           Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E           Matchers failed :
E           _custom_request_query_matcher - assertion failure :
E           None
E           
E           2 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E           Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E           Matchers failed :
E           _custom_request_query_matcher - assertion failure :
E           None
E           
E           3 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E           Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E           Matchers failed :
E           _custom_request_query_matcher - assertion failure :
E           None
E           
E           4 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E           Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E           Matchers failed :
E           _custom_request_query_matcher - assertion failure :
E           None
E           
E           5 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E           Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E           Matchers failed :
E           _custom_request_query_matcher - assertion failure :
E           None

src/azure-cli-testsdk/azure/cli/testsdk/base.py:308: AssertionError
azure/cli/command_modules/vm/tests/latest/test_vm_commands.py:4374
Failed test_vmss_scale_extended_location The error message is too long, please check the pipeline log for details. azure/cli/command_modules/vm/tests/latest/test_vm_commands.py:4476
Failed test_vmss_linux_patch_mode The error message is too long, please check the pipeline log for details. azure/cli/command_modules/vm/tests/latest/test_vm_commands.py:11710
❌3.13
Type Test Case Error Message Line
Failed test_vmss_create_and_modify self = <azure.cli.testsdk.base.ExecutionResult object at 0x7ff88a511a90>
cli_ctx = <azure.cli.core.mock.DummyCli object at 0x7ff890f41590>
command = 'vmss scale --resource-group cli_test_vmss_create_and_modify000001 --name vmss1 --new-capacity 4'
expect_failure = False

    def in_process_execute(self, cli_ctx, command, expect_failure=False):
        from io import StringIO
        from vcr.errors import CannotOverwriteExistingCassetteException
    
        if command.startswith('az '):
            command = command[3:]
    
        stdout_buf = StringIO()
        logging_buf = StringIO()
        try:
            # issue: stderr cannot be redirect in this form, as a result some failure information
            # is lost when command fails.
>           self.exit_code = cli_ctx.invoke(shlex.split(command), out_file=stdout_buf) or 0
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

src/azure-cli-testsdk/azure/cli/testsdk/base.py:303: 
                                        
env/lib/python3.13/site-packages/knack/cli.py:245: in invoke
    exit_code = self.exception_handler(ex)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/init.py:141: in exception_handler
    return handle_exception(ex)
           ^^^^^^^^^^^^^^^^^^^^
src/azure-cli-testsdk/azure/cli/testsdk/patches.py:33: in handle_main_exception
    raise ex
env/lib/python3.13/site-packages/knack/cli.py:233: in invoke
    cmd_result = self.invocation.execute(args)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/commands/init.py:669: in execute
    raise ex
src/azure-cli-core/azure/cli/core/commands/init.py:737: in run_jobs_serially
    results.append(self.run_job(expanded_arg, cmd_copy))
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/commands/init.py:706: in run_job
    result = cmd_copy(params)
             ^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/commands/init.py:336: in call
    return self.handler(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/commands/command_operation.py:120: in handler
    return op(**command_args)
           ^^^^^^^^^^^^^^^^^^
src/azure-cli/azure/cli/command_modules/vm/custom.py:4497: in scale_vmss
    vmss = VMSSShow(cli_ctx=cmd.cli_ctx)(command_args={
src/azure-cli-core/azure/cli/core/aaz/command.py:155: in call
    return self.handler(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli/azure/cli/command_modules/vm/aaz/latest/vmss/__cmds.py:15780: in handler
    self.execute_operations()
src/azure-cli/azure/cli/command_modules/vm/aaz/latest/vmss/__cmds.py:15812: in execute_operations
    self.VirtualMachineScaleSetsGet(ctx=self.ctx)()
src/azure-cli/azure/cli/command_modules/vm/aaz/latest/vmss/__cmds.py:15832: in call
    session = self.client.send_request(request=request, stream=False, **kwargs)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/aaz/client.py:108: in send_request
    session = self.pipeline.run(request, stream=stream, **kwargs)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:242: in run
    return first_node.send(pipeline_request)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/mgmt/core/policies/base.py:95: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/policies/redirect.py:205: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/policies/retry.py:545: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-core/azure/cli/core/aaz/http_policy.py:112: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:98: in send
    response = self.next.send(request)
               ^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/base.py:130: in send
    self.sender.send(request.http_request, **request.context.options),
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/azure/core/pipeline/transport/requests_basic.py:375: in send
    response = self.session.request(  # type: ignore
env/lib/python3.13/site-packages/requests/sessions.py:589: in request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/requests/sessions.py:703: in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
env/lib/python3.13/site-packages/requests/adapters.py:667: in send
    resp = conn.urlopen(
env/lib/python3.13/site-packages/urllib3/connectionpool.py:787: in urlopen
    response = self.make_request(
env/lib/python3.13/site-packages/urllib3/connectionpool.py:534: in make_request
    response = conn.getresponse()
               ^^^^^^^^^^^^^^^^^^
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
         

self = <VCRRequestsHTTPSConnection/mnt/vss/work/1/s/src/azure-cli/azure/cli/command_modules/vm/tests/latest/recordings/test_vmss_create_and_modify.yaml(host='management.azure.com', port=443) at 0x7ff88a4967b0>
 = False, kwargs = {}

    def getresponse(self, =False, **kwargs):
        """Retrieve the response"""
        # Check to see if the cassette has a response for this request. If so,
        # then return it
        if self.cassette.can_play_response_for(self.vcr_request):
            log.info(f"Playing response for {self.vcr_request} from cassette")
            response = self.cassette.play_response(self.vcr_request)
            return VCRHTTPResponse(response)
        else:
            if self.cassette.write_protected and self.cassette.filter_request(self.vcr_request):
>               raise CannotOverwriteExistingCassetteException(
                    cassette=self.cassette,
                    failed_request=self.vcr_request,
                )
E               vcr.errors.CannotOverwriteExistingCassetteException: Can't overwrite existing cassette ('/mnt/vss/work/1/s/src/azure-cli/azure/cli/command_modules/vm/tests/latest/recordings/test_vmss_create_and_modify.yaml') in your current record mode ('once').
E               No match for the request (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2025-04-01>)&nbsp;was&nbsp;found.
E               Found 5 similar requests with 1 different matcher(s) :
E               
E               1 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E               Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E               Matchers failed :
E               custom_request_query_matcher - assertion failure :
E               None
E               
E               2 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E               Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E               Matchers failed :
E               custom_request_query_matcher - assertion failure :
E               None
E               
E               3 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E               Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E               Matchers failed :
E               custom_request_query_matcher - assertion failure :
E               None
E               
E               4 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E               Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E               Matchers failed :
E               custom_request_query_matcher - assertion failure :
E               None
E               
E               5 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E               Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E               Matchers failed :
E               custom_request_query_matcher - assertion failure :
E               None

env/lib/python3.13/site-packages/vcr/stubs/init.py:277: CannotOverwriteExistingCassetteException

During handling of the above exception, another exception occurred:

self = <latest.test_vm_commands.VMSSCreateAndModify testMethod=test_vmss_create_and_modify>

    @AllowLargeResponse()
    @ResourceGroupPreparer(name_prefix='cli_test_vmss_create_and_modify')
    def test_vmss_create_and_modify(self):
    
        self.kwargs.update({
            'vmss': 'vmss1',
            'count': 5,
            'new_count': 4,
            'vmss2': self.create_random_name('vmss', 10)
        })
    
        self.cmd('vmss create --admin-password testPassword0 --name {vmss} -g {rg} --admin-username myadmin --image Win2022Datacenter '
                 '--instance-count {count} --orchestration-mode Uniform --lb-sku Standard --vm-sku Standard_B1ls')
    
        self.cmd('vmss show --name {vmss} -g {rg}', checks=[
            self.check('virtualMachineProfile.priority', None),
            self.check('sku.name', 'Standard_B1ls'),
        ])
    
        self.cmd('vmss list',
                 checks=self.check('type(@)', 'array'))
    
        self.cmd('vmss list --resource-group {rg}', checks=[
            self.check('type(@)', 'array'),
            self.check('length(@)', 1),
            self.check('[0].name', '{vmss}'),
            self.check('[0].resourceGroup', '{rg}')
        ])
        self.cmd('vmss list-skus --resource-group {rg} --name {vmss}',
                 checks=self.check('type(@)', 'array'))
        self.cmd('vmss show --resource-group {rg} --name {vmss}', checks=[
            self.check('type(@)', 'object'),
            self.check('name', '{vmss}'),
            self.check('resourceGroup', '{rg}')
        ])
    
        self.cmd('vmss get-os-upgrade-history --resource-group {rg} --name {vmss}', checks=self.is_empty())
        result = self.cmd('vmss list-instances --resource-group {rg} --name {vmss} --query "[].instanceId"').get_output_in_json()
        self.kwargs['instance_ids'] = result[3] + ' ' + result[4]
        self.cmd('vmss update-instances --resource-group {rg} --name {vmss} --instance-ids {instance_ids}')
        self.cmd('vmss get-instance-view --resource-group {rg} --name {vmss}', checks=[
            self.check('type(@)', 'object'),
            self.check('type(virtualMachine)', 'object'),
            self.check('type(statuses)', 'array')
        ])
    
        self.cmd('vmss stop --resource-group {rg} --name {vmss}')
        self.cmd('vmss start --resource-group {rg} --name {vmss}')
        self.cmd('vmss restart --resource-group {rg} --name {vmss}')
    
>       self.cmd('vmss scale --resource-group {rg} --name {vmss} --new-capacity {new_count}')

src/azure-cli/azure/cli/command_modules/vm/tests/latest/test_vm_commands.py:4425: 
 
 
 
 
 
 
 
 
 
 
 
                             
src/azure-cli-testsdk/azure/cli/testsdk/base.py:177: in cmd
    return execute(self.cli_ctx, command, expect_failure=expect_failure).assert_with_checks(checks)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
src/azure-cli-testsdk/azure/cli/testsdk/base.py:252: in init
    self.in_process_execute(cli_ctx, command, expect_failure=expect_failure)
                                       _ 

self = <azure.cli.testsdk.base.ExecutionResult object at 0x7ff88a511a90>
cli_ctx = <azure.cli.core.mock.DummyCli object at 0x7ff890f41590>
command = 'vmss scale --resource-group cli_test_vmss_create_and_modify000001 --name vmss1 --new-capacity 4'
expect_failure = False

    def _in_process_execute(self, cli_ctx, command, expect_failure=False):
        from io import StringIO
        from vcr.errors import CannotOverwriteExistingCassetteException
    
        if command.startswith('az '):
            command = command[3:]
    
        stdout_buf = StringIO()
        logging_buf = StringIO()
        try:
            # issue: stderr cannot be redirect in this form, as a result some failure information
            # is lost when command fails.
            self.exit_code = cli_ctx.invoke(shlex.split(command), out_file=stdout_buf) or 0
            self.output = stdout_buf.getvalue()
            self.applog = logging_buf.getvalue()
    
        except CannotOverwriteExistingCassetteException as ex:
>           raise AssertionError(ex)
E           AssertionError: Can't overwrite existing cassette ('/mnt/vss/_work/1/s/src/azure-cli/azure/cli/command_modules/vm/tests/latest/recordings/test_vmss_create_and_modify.yaml') in your current record mode ('once').
E           No match for the request (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2025-04-01>)&nbsp;was&nbsp;found.
E           Found 5 similar requests with 1 different matcher(s) :
E           
E           1 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E           Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E           Matchers failed :
E           _custom_request_query_matcher - assertion failure :
E           None
E           
E           2 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E           Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E           Matchers failed :
E           _custom_request_query_matcher - assertion failure :
E           None
E           
E           3 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E           Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E           Matchers failed :
E           _custom_request_query_matcher - assertion failure :
E           None
E           
E           4 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E           Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E           Matchers failed :
E           _custom_request_query_matcher - assertion failure :
E           None
E           
E           5 - (<Request (GET) https://management.azure.com/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/cli_test_vmss_create_and_modify000001/providers/Microsoft.Compute/virtualMachineScaleSets/vmss1?api-version=2024-11-01>).
E           Matchers succeeded : ['method', 'scheme', 'host', 'port', 'path']
E           Matchers failed :
E           _custom_request_query_matcher - assertion failure :
E           None

src/azure-cli-testsdk/azure/cli/testsdk/base.py:308: AssertionError
azure/cli/command_modules/vm/tests/latest/test_vm_commands.py:4374
Failed test_vmss_scale_extended_location The error message is too long, please check the pipeline log for details. azure/cli/command_modules/vm/tests/latest/test_vm_commands.py:4476
Failed test_vmss_linux_patch_mode The error message is too long, please check the pipeline log for details. azure/cli/command_modules/vm/tests/latest/test_vm_commands.py:11710

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azure-client-tools-bot-prd bot commented Feb 13, 2026

️✔️AzureCLI-BreakingChangeTest
️✔️Non Breaking Changes

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yonzhan commented Feb 13, 2026

Thank you for your contribution! We will review the pull request and get back to you soon.

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The git hooks are available for azure-cli and azure-cli-extensions repos. They could help you run required checks before creating the PR.

Please sync the latest code with latest dev branch (for azure-cli) or main branch (for azure-cli-extensions).
After that please run the following commands to enable git hooks:

pip install azdev --upgrade
azdev setup -c <your azure-cli repo path> -r <your azure-cli-extensions repo path>

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Pull request overview

Migrates the az vmss scale command from the legacy azure.mgmt.compute SDK implementation to an AAZ-based implementation, and adjusts command registration to point to the new custom handler.

Changes:

  • Reimplemented scale_vmss to use operations.vmss.VMSSShow + VMSSCreate (AAZ) instead of virtual_machine_scale_sets.get + begin_create_or_update (SDK).
  • Moved vmss scale command registration to the with self.command_group('vmss') block (and removed it from the SDK-based vmss command group).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File Description
src/azure-cli/azure/cli/command_modules/vm/custom.py Replaces SDK-based VMSS scale logic with AAZ Show + Create flow and capacity update.
src/azure-cli/azure/cli/command_modules/vm/commands.py Re-registers vmss scale to use the custom command entry aligned with the migration.

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vmss['sku']['capacity'] = new_capacity
vmss['no_wait'] = no_wait

VMSSCreate(cli_ctx=cmd.cli_ctx)(command_args=vmss)
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scale_vmss doesn’t return the result/poller from VMSSCreate(...). This changes the command behavior (no output) and will break existing tests that assert on vmss scale output (e.g., extendedLocation). Return the result of VMSSCreate(...) (and/or the LRO poller when --no-wait is used), consistent with update_vmss which returns VMSSCreate(...).

Suggested change
VMSSCreate(cli_ctx=cmd.cli_ctx)(command_args=vmss)
return VMSSCreate(cli_ctx=cmd.cli_ctx)(command_args=vmss)

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Comment on lines +4496 to +4502
from .operations.vmss import VMSSCreate, VMSSShow, convert_show_result_to_snake_case
vmss = VMSSShow(cli_ctx=cmd.cli_ctx)(command_args={
'resource_group': resource_group_name,
'vm_scale_set_name': vm_scale_set_name
})
vmss = convert_show_result_to_snake_case(vmss)

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VMSSCreate requires resource_group and vm_scale_set_name arguments (see aaz latest vmss Create args schema). The dict produced by convert_show_result_to_snake_case(vmss) doesn’t include these keys, so this call will fail with missing required arguments. Please add resource_group=resource_group_name and vm_scale_set_name=vm_scale_set_name to the command_args passed to VMSSCreate (either by setting them on vmss or by constructing a new args dict).

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4 participants