本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。

# Amazon EMR 的服務角色 (EMR 角色)
<a name="emr-iam-role"></a>

Amazon EMR 角色會在佈建資源和執行服務層級的任務 (這些任務不會在執行叢集內 Amazon EC2 執行個體的內容中執行) 時，定義 Amazon EMR 允許的動作。例如，服務角色用於在叢集啟動時佈建 EC2 執行個體。
+ 預設角色名稱為 `EMR_DefaultRole_V2`。
+ 附接至 `EMR_DefaultRole_V2` 的 Amazon EMR 範圍預設受管政策是 `AmazonEMRServicePolicy_v2`。此 v2 政策會取代已棄用的預設受管政策 `AmazonElasticMapReduceRole`。

`AmazonEMRServicePolicy_v2` 取決於 Amazon EMR 佈建或使用的資源的範圍縮小存取權。使用此政策時，您需要在佈建叢集時傳遞使用者標籤 `for-use-with-amazon-emr-managed-policies = true`。Amazon EMR 將自動傳播這些標籤。此外，您可能還需要手動將使用者標籤新增至特定類型的資源，例如非 Amazon EMR 建立的 EC2 安全群組。請參閱 [標記資源以使用受管政策](emr-managed-iam-policies.md#manually-tagged-resources)。

**重要**  
Amazon EMR 使用此 Amazon EMR 服務角色和 `AWSServiceRoleForEMRCleanup` 角色來清除帳戶中不再使用的叢集資源，例如 Amazon EC2 執行個體。必須包含角色政策的動作，才能刪除或終止資源。否則，Amazon EMR 無法執行這些清除動作，保留在叢集上的未使用資源可能會產生費用。

以下顯示目前 `AmazonEMRServicePolicy_v2` 政策的內容。您也可以在 IAM 主控台上查看 [https://console.aws.amazon.com/iam/home#policies/arn:aws:iam::aws:policy/service-role/AmazonEMRServicePolicy_v2](https://console.aws.amazon.com/iam/home#policies/arn:aws:iam::aws:policy/service-role/AmazonEMRServicePolicy_v2) 受管政策的目前內容。

------
#### [ JSON ]

****  

```
{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
    {
      "Sid": "CreateInTaggedNetwork",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateNetworkInterface",
        "ec2:RunInstances",
        "ec2:CreateFleet",
        "ec2:CreateLaunchTemplate",
        "ec2:CreateLaunchTemplateVersion"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:subnet/*",
        "arn:aws:ec2:*:*:security-group/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "CreateWithEMRTaggedLaunchTemplate",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateFleet",
        "ec2:RunInstances",
        "ec2:CreateLaunchTemplateVersion"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:launch-template/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "CreateEMRTaggedLaunchTemplate",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateLaunchTemplate"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:launch-template/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:RequestTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "CreateEMRTaggedInstancesAndVolumes",
      "Effect": "Allow",
      "Action": [
        "ec2:RunInstances",
        "ec2:CreateFleet"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:instance/*",
        "arn:aws:ec2:*:*:volume/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:RequestTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "ResourcesToLaunchEC2",
      "Effect": "Allow",
      "Action": [
        "ec2:RunInstances",
        "ec2:CreateFleet",
        "ec2:CreateLaunchTemplate",
        "ec2:CreateLaunchTemplateVersion"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:network-interface/*",
        "arn:aws:ec2:*::image/ami-*",
        "arn:aws:ec2:*:*:key-pair/*",
        "arn:aws:ec2:*:*:capacity-reservation/*",
        "arn:aws:ec2:*:*:placement-group/pg-*",
        "arn:aws:ec2:*:*:fleet/*",
        "arn:aws:ec2:*:*:dedicated-host/*",
        "arn:aws:resource-groups:*:*:group/*"
      ]
    },
    {
      "Sid": "ManageEMRTaggedResources",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateLaunchTemplateVersion",
        "ec2:DeleteLaunchTemplate",
        "ec2:DeleteNetworkInterface",
        "ec2:ModifyInstanceAttribute",
        "ec2:TerminateInstances"
      ],
      "Resource": [
        "*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "ManageTagsOnEMRTaggedResources",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateTags",
        "ec2:DeleteTags"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:instance/*",
        "arn:aws:ec2:*:*:volume/*",
        "arn:aws:ec2:*:*:network-interface/*",
        "arn:aws:ec2:*:*:launch-template/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "CreateNetworkInterfaceNeededForPrivateSubnet",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateNetworkInterface"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:network-interface/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:RequestTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "TagOnCreateTaggedEMRResources",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateTags"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:network-interface/*",
        "arn:aws:ec2:*:*:instance/*",
        "arn:aws:ec2:*:*:volume/*",
        "arn:aws:ec2:*:*:launch-template/*"
      ],
      "Condition": {
        "StringEquals": {
          "ec2:CreateAction": [
            "RunInstances",
            "CreateFleet",
            "CreateLaunchTemplate",
            "CreateNetworkInterface"
          ]
        }
      }
    },
    {
      "Sid": "TagPlacementGroups",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateTags",
        "ec2:DeleteTags"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:placement-group/pg-*"
      ]
    },
    {
      "Sid": "ListActionsForEC2Resources",
      "Effect": "Allow",
      "Action": [
        "ec2:DescribeAccountAttributes",
        "ec2:DescribeCapacityReservations",
        "ec2:DescribeDhcpOptions",
        "ec2:DescribeImages",
        "ec2:DescribeInstances",
        "ec2:DescribeInstanceTypeOfferings",
        "ec2:DescribeLaunchTemplates",
        "ec2:DescribeNetworkAcls",
        "ec2:DescribeNetworkInterfaces",
        "ec2:DescribePlacementGroups",
        "ec2:DescribeRouteTables",
        "ec2:DescribeSecurityGroups",
        "ec2:DescribeSubnets",
        "ec2:DescribeVolumes",
        "ec2:DescribeVolumeStatus",
        "ec2:DescribeVpcAttribute",
        "ec2:DescribeVpcEndpoints",
        "ec2:DescribeVpcs"
      ],
      "Resource": [
        "*"
      ]
    },
    {
      "Sid": "CreateDefaultSecurityGroupWithEMRTags",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateSecurityGroup"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:security-group/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:RequestTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "CreateDefaultSecurityGroupInVPCWithEMRTags",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateSecurityGroup"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:vpc/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "TagOnCreateDefaultSecurityGroupWithEMRTags",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateTags"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:security-group/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:RequestTag/for-use-with-amazon-emr-managed-policies": "true",
          "ec2:CreateAction": "CreateSecurityGroup"
        }
      }
    },
    {
      "Sid": "ManageSecurityGroups",
      "Effect": "Allow",
      "Action": [
        "ec2:AuthorizeSecurityGroupEgress",
        "ec2:AuthorizeSecurityGroupIngress",
        "ec2:RevokeSecurityGroupEgress",
        "ec2:RevokeSecurityGroupIngress"
      ],
      "Resource": [
        "*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "CreateEMRPlacementGroups",
      "Effect": "Allow",
      "Action": [
        "ec2:CreatePlacementGroup"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:placement-group/pg-*"
      ]
    },
    {
      "Sid": "DeletePlacementGroups",
      "Effect": "Allow",
      "Action": [
        "ec2:DeletePlacementGroup"
      ],
      "Resource": [
        "*"
      ]
    },
    {
      "Sid": "AutoScaling",
      "Effect": "Allow",
      "Action": [
        "application-autoscaling:DeleteScalingPolicy",
        "application-autoscaling:DeregisterScalableTarget",
        "application-autoscaling:DescribeScalableTargets",
        "application-autoscaling:DescribeScalingPolicies",
        "application-autoscaling:PutScalingPolicy",
        "application-autoscaling:RegisterScalableTarget"
      ],
      "Resource": [
        "*"
      ]
    },
    {
      "Sid": "ResourceGroupsForCapacityReservations",
      "Effect": "Allow",
      "Action": [
        "resource-groups:ListGroupResources"
      ],
      "Resource": [
        "*"
      ]
    },
    {
      "Sid": "AutoScalingCloudWatch",
      "Effect": "Allow",
      "Action": [
        "cloudwatch:PutMetricAlarm",
        "cloudwatch:DeleteAlarms",
        "cloudwatch:DescribeAlarms"
      ],
      "Resource": [
        "arn:aws:cloudwatch:*:*:alarm:*_EMR_Auto_Scaling"
      ]
    },
    {
      "Sid": "PassRoleForAutoScaling",
      "Effect": "Allow",
      "Action": [
        "iam:PassRole"
      ],
      "Resource": [
        "arn:aws:iam::*:role/EMR_AutoScaling_DefaultRole"
      ],
      "Condition": {
        "StringLike": {
          "iam:PassedToService": "application-autoscaling.amazonaws.com*"
        }
      }
    },
    {
      "Sid": "PassRoleForEC2",
      "Effect": "Allow",
      "Action": [
        "iam:PassRole"
      ],
      "Resource": [
        "arn:aws:iam::*:role/EMR_EC2_DefaultRole"
      ],
      "Condition": {
        "StringLike": {
          "iam:PassedToService": "ec2.amazonaws.com*"
        }
      }
    },
    {
      "Sid": "CreateAndModifyEmrServiceVPCEndpoint",
      "Effect": "Allow",
      "Action": [
        "ec2:ModifyVpcEndpoint",
        "ec2:CreateVpcEndpoint"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:vpc-endpoint/*",
        "arn:aws:ec2:*:*:subnet/*",
        "arn:aws:ec2:*:*:security-group/*",
        "arn:aws:ec2:*:*:vpc/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "CreateEmrServiceVPCEndpoint",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateVpcEndpoint"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:vpc-endpoint/*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:RequestTag/for-use-with-amazon-emr-managed-policies": "true",
          "aws:RequestTag/Name": "emr-service-vpce"
        }
      }
    },
    {
      "Sid": "TagEmrServiceVPCEndpoint",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateTags"
      ],
      "Resource": [
        "arn:aws:ec2:*:*:vpc-endpoint/*"
      ],
      "Condition": {
        "StringEquals": {
          "ec2:CreateAction": "CreateVpcEndpoint",
          "aws:RequestTag/for-use-with-amazon-emr-managed-policies": "true",
          "aws:RequestTag/Name": "emr-service-vpce"
        }
      }
    }
  ]
}
```

------

您的服務角色應使用下列信任政策。

**重要**  
下列信任政策包括 [https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_condition-keys.html#condition-keys-sourcearn](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_condition-keys.html#condition-keys-sourcearn) 和 [https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_condition-keys.html#condition-keys-sourceaccount](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_condition-keys.html#condition-keys-sourceaccount) 全域條件金鑰，這些金鑰會將您授予 Amazon EMR 的許可限制在帳戶中的特定資源。使用它們可以保護您免受[混淆代理人問題](https://docs.aws.amazon.com/IAM/latest/UserGuide/confused-deputy.html)。

------
#### [ JSON ]

****  

```
{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
    {
      "Sid": "AllowSTSAssumerole",
      "Effect": "Allow",
      "Action": [
        "sts:AssumeRole"
      ],
      "Resource": "arn:aws:iam::123456789012:role/EMRServiceRole",
      "Condition": {
        "StringEquals": {
          "aws:SourceAccount": "123456789012"
        },
        "ArnLike": {
          "aws:SourceArn": "arn:aws:elasticmapreduce:*:123456789012:*"
        }
      }
    }
  ]
}
```

------