Monitor Capacity Blocks - Amazon Elastic Compute Cloud
Monitor Capacity Blocks with EventBridgeLogging Capacity Blocks API calls with Amazon CloudTrail
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Monitor Capacity Blocks

Monitor Capacity Blocks with EventBridge

When your Capacity Block reservation starts, Amazon EC2 will emit an event through EventBridge that indicates your capacity is ready to use. Forty minutes before your Capacity Block reservation ends, you receive another EventBridge event that tells you that any instances running in the reservation will begin to terminate in 10 minutes. For more information about EventBridge events, see Amazon EventBridge Events.

The following event structures for events emitted for Capacity Blocks:

Capacity Block Delivered

The following example shows an event for Capacity Block Delivered.

{
  "customer_event_id": "[Capacity Reservation Id]-delivered",
  "detail_type": "Capacity Block Reservation Delivered",
  "source": "aws.ec2",
  "account": "[Customer Account ID]",
  "time": "[Current time]",
  "resources": [
    "[ODCR ARN]"
  ],
  "detail": {
    "capacity-reservation-id": "[ODCR ID]",
    "end-date": "[ODCR End Date]"
  }
}
Capacity Block Expiration Warning

The following example shows an event for Capacity Block Expiration Warning.

{
  "customer_event_id": "[Capacity Reservation Id]-approaching-expiry",
  "detail_type": "Capacity Block Reservation Expiration Warning",
  "source": "aws.ec2",
  "account": "[Customer Account ID]",
  "time": "[Current time]",
  "resources": [
    "[ODCR ARN]"
  ],
  "detail": {
    "capacity-reservation-id": "[ODCR ID]",
    "end-date": "[ODCR End Date]"
  }
}

Logging Capacity Blocks API calls with Amazon CloudTrail

Capacity Blocks is integrated with Amazon CloudTrail, a service that provides a record of actions taken by a user, role, or an Amazon service in Capacity Blocks. CloudTrail captures API calls for Capacity Blocks as events. The calls captured include calls from the Capacity Blocks console and code calls to the Capacity Blocks API operations. If you create a trail, you can enable continuous delivery of CloudTrail events to an Amazon S3 bucket, including events for Capacity Blocks. If you don't configure a trail, you can still view the most recent events in the CloudTrail console in Event history. Using the information collected by CloudTrail, you can determine the request that was made to Capacity Blocks, the IP address from which the request was made, who made the request, when it was made, and additional details.

To learn more about CloudTrail, see the Amazon CloudTrail User Guide.

Capacity Blocks information in CloudTrail

CloudTrail is enabled on your Amazon Web Services account when you create the account. When activity occurs in Capacity Blocks, that activity is recorded in a CloudTrail event along with other Amazon service events in Event history. You can view, search, and download recent events in your Amazon Web Services account. For more information, see Viewing events with CloudTrail Event history.

For an ongoing record of events in your Amazon Web Services account, including events for Capacity Blocks, create a trail. A trail enables CloudTrail to deliver log files to an Amazon S3 bucket. By default, when you create a trail in the console, the trail applies to all Amazon Web Services Regions. The trail logs events from all Regions in the Amazon partition and delivers the log files to the Amazon S3 bucket that you specify. Additionally, you can configure other Amazon services to further analyze and act upon the event data collected in CloudTrail logs. For more information, see the following:

All Capacity Blocks actions are logged by CloudTrail and are documented in the Amazon EC2 API Reference. For example, calls to the CapacityBlockScheduled, and CapacityBlockActive actions generate entries in the CloudTrail log files.

Every event or log entry contains information about who generated the request. The identity information helps you determine the following:

  • Whether the request was made with root or Amazon Identity and Access Management (IAM) user credentials.

  • Whether the request was made with temporary security credentials for a role or federated user.

  • Whether the request was made by another Amazon service.

For more information, see the CloudTrail userIdentity element.

Understanding Capacity Blocks log file entries

A trail is a configuration that enables delivery of events as log files to an Amazon S3 bucket that you specify. CloudTrail log files contain one or more log entries. An event represents a single request from any source and includes information about the requested action, the date and time of the action, request parameters, and so on. CloudTrail log files aren't an ordered stack trace of the public API calls, so they don't appear in any specific order.

The following examples show CloudTrail log entries for:

Note

Some fields have been redacted from the examples for data privacy.

TerminateCapacityBlocksInstances

{
  "eventVersion": "1.05",
  "userIdentity": {
    "accountId": "123456789012",
    "invokedBy": "Amazon Internal;"
  },
  "eventTime": "2023-10-02T00:06:08Z",
  "eventSource": "ec2.amazonaws.com",
  "eventName": "TerminateCapacityBlockInstances",
  "awsRegion": "us-east-1",
  "sourceIPAddress": "203.0.113.25",
  "userAgent": "aws-cli/1.15.61 Python/2.7.10 Darwin/16.7.0 botocore/1.10.60",
  "requestParameters": null,
  "responseElements": null,
  "eventID": "a1b2c3d4-EXAMPLE",
  "readOnly": false,
  "resources": [
    {
      "accountId": "123456789012",
      "type": "AWS::EC2::Instance",
      "ARN": "arn:aws-cn:ec2:US East (N. Virginia):123456789012:instance/i-1234567890abcdef0"
    }
    {
      "accountId": "123456789012",
      "type": "AWS::EC2::Instance",
      "ARN": "arn:aws-cn::ec2:US East (N. Virginia):123456789012:instance/i-0598c7d356eba48d7"
    }
  ],
  "eventType": "AwsServiceEvent",
  "recipientAccountId": "123456789012",
  "serviceEventDetails": {
      "capacityReservationId": "cr-12345678",
      }
}

CapacityBlockPaymentFailed

{
  "eventVersion": "1.05",
  "userIdentity": {
    "accountId": "123456789012",
    "invokedBy": "Amazon Internal;"
  },
  "eventTime": "2023-10-02T00:06:08Z",
  "eventSource": "ec2.amazonaws.com",
  "eventName": "CapacityBlockPaymentFailed",
  "awsRegion": "us-east-1",
  "sourceIPAddress": "203.0.113.25",
  "userAgent": "aws-cli/1.15.61 Python/2.7.10 Darwin/16.7.0 botocore/1.10.60",
  "requestParameters": null,
  "responseElements": null,
  "eventID": "a1b2c3d4-EXAMPLE",
  "readOnly": false,
  "resources": [
    {
      "ARN": "arn:aws-cn:ec2:US East (N. Virginia):123456789012:capacity-reservation/cr-12345678",
      "accountId": "123456789012",
      "type": "AWS::EC2::CapacityReservation"
    }
  ],
  "eventType": "AwsServiceEvent",
  "recipientAccountId": "123456789012",
  "serviceEventDetails": {
      "capacityReservationId": "cr-12345678",
      "capacityReservationState": "payment-failed"
      }
}

CapacityBlockScheduled

{
  "eventVersion": "1.05",
  "userIdentity": {
    "accountId": "123456789012",
    "invokedBy": "Amazon Internal;"
  },
  "eventTime": "2023-10-02T00:06:08Z",
  "eventSource": "ec2.amazonaws.com",
  "eventName": "CapacityBlockScheduled",
  "awsRegion": "us-east-1",
  "sourceIPAddress": "203.0.113.25",
  "userAgent": "aws-cli/1.15.61 Python/2.7.10 Darwin/16.7.0 botocore/1.10.60",
  "requestParameters": null,
  "responseElements": null,
  "eventID": "a1b2c3d4-EXAMPLE",
  "readOnly": false,
  "resources": [
    {
      "ARN": "arn:aws-cn:ec2:US East (N. Virginia):123456789012:capacity-reservation/cr-12345678",
      "accountId": "123456789012",
      "type": "AWS::EC2::CapacityReservation"
    }
  ],
  "eventType": "AwsServiceEvent",
  "recipientAccountId": "123456789012",
  "serviceEventDetails": {
      "capacityReservationId": "cr-12345678",
      "capacityReservationState": "scheduled"
      }
}

CapacityBlockActive

{
  "eventVersion": "1.05",
  "userIdentity": {
    "accountId": "123456789012",
    "invokedBy": "Amazon Internal;"
  },
  "eventTime": "2023-10-02T00:06:08Z",
  "eventSource": "ec2.amazonaws.com",
  "eventName": "CapacityBlockActive",
  "awsRegion": "us-east-1",
  "sourceIPAddress": "203.0.113.25",
  "userAgent": "aws-cli/1.15.61 Python/2.7.10 Darwin/16.7.0 botocore/1.10.60",
  "requestParameters": null,
  "responseElements": null,
  "eventID": "a1b2c3d4-EXAMPLE",
  "readOnly": false,
  "resources": [
    {
      "ARN": "arn:aws-cn:ec2:US East (N. Virginia):123456789012:capacity-reservation/cr-12345678",
      "accountId": "123456789012",
      "type": "AWS::EC2::CapacityReservation"
    }
  ],
  "eventType": "AwsServiceEvent",
  "recipientAccountId": "123456789012",
  "serviceEventDetails": {
      "capacityReservationId": "cr-12345678",
      "capacityReservationState": "active"
      }
 }

CapacityBlockFailed

{
  "eventVersion": "1.05",
  "userIdentity": {
    "accountId": "123456789012",
    "invokedBy": "Amazon Internal;"
  },
  "eventTime": "2023-10-02T00:06:08Z",
  "eventSource": "ec2.amazonaws.com",
  "eventName": "CapacityBlockFailed",
  "awsRegion": "us-east-1",
  "sourceIPAddress": "203.0.113.25",
  "userAgent": "aws-cli/1.15.61 Python/2.7.10 Darwin/16.7.0 botocore/1.10.60",
  "requestParameters": null,
  "responseElements": null,
  "eventID": "a1b2c3d4-EXAMPLE",
  "readOnly": false,
  "resources": [
    {
      "ARN": "arn:aws-cn:ec2:US East (N. Virginia):123456789012:capacity-reservation/cr-12345678",
      "accountId": "123456789012",
      "type": "AWS::EC2::CapacityReservation"
    }
  ],
  "eventType": "AwsServiceEvent",
  "recipientAccountId": "123456789012",
  "serviceEventDetails": {
      "capacityReservationId": "cr-12345678",
      "capacityReservationState": "failed"
      }
 }

CapacityBlockExpired

{
  "eventVersion": "1.05",
  "userIdentity": {
    "accountId": "123456789012",
    "invokedBy": "Amazon Internal;"
  },
  "eventTime": "2023-10-02T00:06:08Z",
  "eventSource": "ec2.amazonaws.com",
  "eventName": "CapacityBlockExpired",
  "awsRegion": "us-east-1",
  "sourceIPAddress": "203.0.113.25",
  "userAgent": "aws-cli/1.15.61 Python/2.7.10 Darwin/16.7.0 botocore/1.10.60",
  "requestParameters": null,
  "responseElements": null,
  "eventID": "a1b2c3d4-EXAMPLE",
  "readOnly": false,
  "resources": [
    {
      "ARN": "arn:aws-cn:ec2:US East (N. Virginia):123456789012:capacity-reservation/cr-12345678",
      "accountId": "123456789012",
      "type": "AWS::EC2::CapacityReservation"
    }
  ],
  "eventType": "AwsServiceEvent",
  "recipientAccountId": "123456789012",
  "serviceEventDetails": {
      "capacityReservationId": "cr-12345678",
      "capacityReservationState": "expired"
      }
 }