创建AMI和跨区域副本 - Amazon Web Services Systems Manager
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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"
            }
        }
    }
}