如何使用 Python 检查虚拟机是否正在运行

Question

我正在编写一个 python 运行手册，以便能够启动或停止虚拟机。如果虚拟机正在运行，我想停止它。如果它没有运行，我想打开它。我需要编写一个 if 条件来执行此操作，但我不知道如何在 azure 中获取我的虚拟机的状态，以便进行比较。

我尝试使用以下内容：

compute_client.virtual_machines.get(resourceGroupName, vmName, expand = 'instanceview')

但是当我打印这个时，我看不到如何访问虚拟机的状态。

这是我的脚本代码：

import os

from azure.mgmt.compute import ComputeManagementClient

import azure.mgmt.resource

import automationassets

import sys

resourceGroupName = str(sys.argv[1])

vmName = str(sys.argv[2])

def get_automation_runas_credential(runas_connection):

    from OpenSSL import crypto

    import binascii

    from msrestazure import azure_active_directory

    import adal

    # Get the Azure Automation RunAs service principal certificate

    cert = automationassets.get_automation_certificate("AzureRunAsCertificate")

    pks12_cert = crypto.load_pkcs12(cert)

    pem_pkey = crypto.dump_privatekey(crypto.FILETYPE_PEM,pks12_cert.get_privatekey())

    # Get run as connection information for the Azure Automation service principal

    application_id = runas_connection["ApplicationId"]

    thumbprint = runas_connection["CertificateThumbprint"]

    tenant_id = runas_connection["TenantId"]

    # Authenticate with service principal certificate

    resource ="https://management.core.windows.net/"

    authority_url = ("https://login.microsoftonline.com/"+tenant_id)

    context = adal.AuthenticationContext(authority_url)

    return azure_active_directory.AdalAuthentication(

    lambda: context.acquire_token_with_client_certificate(

            resource,

            application_id,

            pem_pkey,

            thumbprint)

    )

# Authenticate to Azure using the Azure Automation RunAs service principal

runas_connection = automationassets.get_automation_connection("AzureRunAsConnection")

azure_credential = get_automation_runas_credential(runas_connection)

# Initialize the compute management client with the RunAs credential and specify the subscription to work against.

compute_client = ComputeManagementClient(

    azure_credential,

    str(runas_connection["SubscriptionId"])

)

Answer 1

您使用的 Azure SDKazure.mgmt.compute是正确的。您只需要获取该信息中的 VM 状态即可。下面的代码：vm = compute_client.virtual_machines.get('v-chaxu-ChinaCXPTeam', 'azureUbuntu18', expand='instanceView')# These are the statuses of the VM about the event execution status and the vm state, the vm state is the second one.statuses = vm.instance_view.statusesprint(statuses[1].display_status)这里的输出：更多详细信息，请参见VM 信息中的 instance_view。或者也可以直接获取instance_view，代码如下：instance_view = compute_client.virtual_machines.instance_view('v-chaxu-ChinaCXPTeam', 'azureUbuntu18')print(instance_view.statuses[1].display_status)输出也和上面一样。有关更多详细信息，请参阅函数instance_view(resource_group_name, vm_name, custom_headers=None, raw=False, **operation_config)。