一个小时内没有收到消息的谷歌云警报？

from google.cloud import monitoring_v3

client = monitoring_v3.AlertPolicyServiceClient()

project_name = client.project_path('your-project-id')
policy = {
    'display_name': 'High CPU Utilization Alert',
    'combiner': monitoring_v3.AlertPolicy.ConditionCombinerType.AND,
    'conditions': [
        {
            'condition_threshold': {
                'filter': 'metric.type="compute.googleapis.com/instance/cpu/utilization"',
                'aggregations': [
                    {
                        'alignment_period': {'seconds': 300},
                        'per_series_aligner': monitoring_v3.Aggregation.Aligner.ALIGN_MEAN,
                    }
                ],
                'threshold_value': 0.8,
                'comparison': monitoring_v3.ComparisonType.COMPARISON_GT,
            },
            'display_name': 'CPU Utilization > 80%',
        }
    ],
    'notification_channels': ['your-notification-channel-id'],
}

policy = client.create_alert_policy(parent=project_name, alert_policy=policy)
print(f'Created alert policy {policy.name}')