Créer une AMI et une copie inter-régions - AWS Systems Manager

Créer une AMI et une copie inter-régions

La création d'une Amazon Machine Image (AMI) d'une instance est un processus courant utilisé dans la sauvegarde et la restauration. Vous pouvez également choisir de copier une AMI dans une autre Région AWS dans le cadre d'une architecture de reprise après sinistre. L'automatisation des tâches courantes de maintenance peut réduire les temps d'arrêt si un problème nécessite un basculement. AWS Systems Manager Les actions d'automatisation peuvent vous aider à y parvenir. Automation est une fonctionnalité de AWS Systems Manager.

Dans l'exemple suivant, un runbook AWS Systems Manager exécute ces actions :

  • Il utilise l'action d'automatisation aws:executeAwsApi pour créer une AMI.

  • Il utilise l'action d'automatisation aws:waitForAwsResourceProperty pour confirmer la disponibilité de l'AMI.

  • Il utilise l'action d'automatisation aws:executeScript pour copier l'AMI dans la région de destination.

YAML

    ---
    description: Custom Automation Backup and Recovery Example
    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: python3.8
        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 Example",
       "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": "python3.8",
                "Handler": "crossRegionImageCopy",
                "InputPayload": {
                   "newImageId": "{{ createImage.newImageId }}"
                },
                "Attachment": "crossRegionImageCopy.py"
             }
          }
       ],
       "files": {
            "crossRegionImageCopy.py": {
                "checksums": {
                    "sha256": "sampleETagValue"
                }
            }
        }
    }