Can not parse request

Bắt đầu với lệnh gọi ComputeClient.launch_instance đã được tái hiện và việc xây dựng model LaunchInstanceDetails, sau đó bật ghi nhật ký request của SDK và so sánh request đã được tuần tự hóa với tài liệu API OCI LaunchInstance được liên kết. Thu hẹp payload để xác định trường nào gây ra CannotParseRequest; hoàn tất khi ví dụ khởi chạy thành công mà không gặp lỗi 400.

import oci

config = oci.config.from_file()
compute_client = oci.core.ComputeClient(config)

compartment_id = "ocid1.compartment.oc1..xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

launch_details = oci.core.models.LaunchInstanceDetails(
    availability_domain="EU-FRANKFURT-1-AD-3",
    compartment_id=compartment_id,
    shape="VM.Standard.A1.Flex",
    display_name="Server",
    source_details=oci.core.models.InstanceSourceViaImageDetails(
        source_type="image",
        image_id="ocid1.image.oc1.eu-frankfurt-1.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
    ),
    create_vnic_details=oci.core.models.CreateVnicDetails(
        subnet_id="ocid1.subnet.oc1.eu-frankfurt-1.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
        assign_public_ip=True,
        assign_private_dns_record=True
    ),
    shape_config=oci.core.models.LaunchInstanceShapeConfigDetails(
        memory_in_gbs=24,
        ocpus=4
    ),
    metadata={
        "ssh_authorized_keys": open(r"/path/to/ssh-key.pub").read().strip()
    },
    agent_config=oci.core.models.LaunchInstanceAgentConfigDetails(
        is_management_disabled=False,
        is_monitoring_disabled=False,
        plugins_config=[
            {"name": "Vulnerability Scanning", "desired_state": "DISABLED"},
            {"name": "Management Agent", "desired_state": "DISABLED"},
            {"name": "Custom Logs Monitoring", "desired_state": "ENABLED"},
            {"name": "Compute RDMA GPU Monitoring", "desired_state": "DISABLED"},
            {"name": "Compute Instance Monitoring", "desired_state": "ENABLED"},
            {"name": "Compute HPC RDMA Auto-Configuration", "desired_state": "DISABLED"},
            {"name": "Compute HPC RDMA Authentication", "desired_state": "DISABLED"},
            {"name": "Cloud Guard Workload Protection", "desired_state": "ENABLED"},
            {"name": "Block Volume Management", "desired_state": "DISABLED"},
            {"name": "Bastion", "desired_state": "DISABLED"}
        ]
    ),
    instance_options=oci.core.models.InstanceOptions(
        are_legacy_imds_endpoints_disabled=False
    ),
    availability_config=oci.core.models.LaunchInstanceAvailabilityConfigDetails(
        recovery_action="RESTORE_INSTANCE"
    )
)

response = compute_client.launch_instance(launch_details)
print("Launch initiated. Instance ID:", response.data.id)

oci.wait_until(
    compute_client,
    compute_client.get_instance(response.data.id),
    'lifecycle_state',
    'RUNNING',
    max_wait_seconds=600
)
print("Instance is now RUNNING")
input()

oci.exceptions.ServiceError: {
    'target_service': 'compute',
    'status': 400,
    'code': 'CannotParseRequest',
    'opc-request-id': 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
    'message': 'Incorrectly formatted request. Please refer to our documentation for help.',
    'operation_name': 'launch_instance',
    'timestamp': '2025-08-13T15:29:34.585459+00:00',
    'client_version': 'Oracle-PythonSDK/2.157.1',
    'request_endpoint': 'POST https://iaas.eu-frankfurt-1.oraclecloud.com/20160918/instances',
    'logging_tips': 'Refer to https://docs.oracle.com/en-us/iaas/tools/python/latest/logging.html for ways to log request/response details.',
    'troubleshooting_tips': 'See https://docs.oracle.com/iaas/Content/API/References/apierrors.htm#apierrors_400__400_cannotparserequest and https://docs.oracle.com/iaas/api/#/en/iaas/20160918/Instance/LaunchInstance for more info.'
}