创建AMI和跨区域副本 - Amazon Web Services Systems Manager
AWS 文档中描述的 AWS 服务或功能可能因区域而异。要查看适用于中国区域的差异,请参阅中国的 AWS 服务入门

本文属于机器翻译版本。若本译文内容与英语原文存在差异,则一律以英文原文为准。

创建AMI和跨区域副本

创建Amazon Machine Image(AMI) 是备份和恢复中使用的常用过程。您也可以选择复制AMI添加到另一个Amazon Web Services 区域作为灾难恢复体系结构的一部分。如果问题需要进行故障转移,则自动执行常见的维护任务可以减少停机时间。Amazon Web Services Systems ManagerAutomation 操作可帮助您做到这一点。自动化是Amazon Web Services Systems Manager。

以下示例Amazon Web Services Systems Manager下面的 Runbook 执行以下操作:

  • 使用aws:executeAwsApi自动化操作来创建AMI。

  • 使用aws:waitForAwsResourcePropertyAutomation 操作以确认AMI。

  • 使用aws:executeScript自动化操作以复制AMI到目的地区。

YAML
--- description: Custom Automation Backup and Recovery Sample schemaVersion: '0.3' assumeRole: "{{ AutomationAssumeRole }}" parameters: AutomationAssumeRole: type: String description: "(Required) The ARN of the role that allows Automation to perform the actions on your behalf. If no role is specified, Systems Manager Automation uses your IAM permissions to use this runbook." default: '' InstanceId: type: String description: "(Required) The ID of the EC2 instance." default: '' mainSteps: - name: createImage action: aws:executeAwsApi onFailure: Abort inputs: Service: ec2 Api: CreateImage InstanceId: "{{ InstanceId }}" Name: "Automation Image for {{ InstanceId }}" NoReboot: false outputs: - Name: newImageId Selector: "$.ImageId" Type: String nextStep: verifyImageAvailability - name: verifyImageAvailability action: aws:waitForAwsResourceProperty timeoutSeconds: 600 inputs: Service: ec2 Api: DescribeImages ImageIds: - "{{ createImage.newImageId }}" PropertySelector: "$.Images[0].State" DesiredValues: - available nextStep: copyImage - name: copyImage action: aws:executeScript timeoutSeconds: 45 onFailure: Abort inputs: Runtime: python3.6 Handler: crossRegionImageCopy InputPayload: newImageId : "{{ createImage.newImageId }}" Script: |- def crossRegionImageCopy(events,context): import boto3 #Initialize client ec2 = boto3.client('ec2', region_name='us-east-1') newImageId = events['newImageId'] ec2.copy_image( Name='DR Copy for ' + newImageId, SourceImageId=newImageId, SourceRegion='us-west-2' )
JSON
{ "description": "Custom Automation Backup and Recovery Sample", "schemaVersion": "0.3", "assumeRole": "{{ AutomationAssumeRole }}", "parameters": { "AutomationAssumeRole": { "type": "String", "description": "(Required) The ARN of the role that allows Automation to perform\nthe actions on your behalf. If no role is specified, Systems Manager Automation\nuses your IAM permissions to run this runbook.", "default": "" }, "InstanceId": { "type": "String", "description": "(Required) The ID of the EC2 instance.", "default": "" } }, "mainSteps": [ { "name": "createImage", "action": "aws:executeAwsApi", "onFailure": "Abort", "inputs": { "Service": "ec2", "Api": "CreateImage", "InstanceId": "{{ InstanceId }}", "Name": "Automation Image for {{ InstanceId }}", "NoReboot": false }, "outputs": [ { "Name": "newImageId", "Selector": "$.ImageId", "Type": "String" } ], "nextStep": "verifyImageAvailability" }, { "name": "verifyImageAvailability", "action": "aws:waitForAwsResourceProperty", "timeoutSeconds": 600, "inputs": { "Service": "ec2", "Api": "DescribeImages", "ImageIds": [ "{{ createImage.newImageId }}" ], "PropertySelector": "$.Images[0].State", "DesiredValues": [ "available" ] }, "nextStep": "copyImage" }, { "name": "copyImage", "action": "aws:executeScript", "timeoutSeconds": 45, "onFailure": "Abort", "inputs": { "Runtime": "python3.6", "Handler": "crossRegionImageCopy", "InputPayload": { "newImageId": "{{ createImage.newImageId }}" }, "Attachment": "crossRegionImageCopy.py" } } ], "files": { "crossRegionImageCopy.py": { "checksums": { "sha256": "sampleETagValue" } } } }