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# 完全访问 Amazon EMR 的 IAM 托管策略（v2 托管默认策略）
<a name="emr-managed-policy-fullaccess-v2"></a>

v2 范围 EMR 默认托管式策略向用户授予特定访问权限。它们需要预定义的 Amazon EMR 资源标签和 Amazon EMR 使用的资源的 `iam:PassRole` 条件键，例如用于启动集群的 `Subnet` 和 `SecurityGroup`。

要为 Amazon EMR 授予对必需操作的权限，可附加 `AmazonEMRFullAccessPolicy_v2` 托管式策略。此更新的默认托管式策略将替换 [`AmazonElasticMapReduceFullAccess`](emr-managed-policy-fullaccess.md) 托管式策略。

`AmazonEMRFullAccessPolicy_v2` 取决于对 Amazon EMR 预置或使用的资源的范围缩小访问权限。使用此策略时，您需要在预置集群时传递用户标签 `for-use-with-amazon-emr-managed-policies = true`。Amazon EMR 将自动传播标签。此外，您可能需要手动向特定类型的资源添加用户标签，例如不是由 Amazon EMR 创建的 EC2 安全组。有关更多信息，请参阅 [标记资源以使用托管式策略](emr-managed-iam-policies.md#manually-tagged-resources)。

[https://console.aws.amazon.com/iam/home#policies/arn:aws:iam::aws:policy/AmazonEMRFullAccessPolicy_v2](https://console.aws.amazon.com/iam/home#policies/arn:aws:iam::aws:policy/AmazonEMRFullAccessPolicy_v2) 策略通过执行以下操作来保护资源：
+ 需要使用预定义的 Amazon EMR 托管式策略标签 `for-use-with-amazon-emr-managed-policies` 标记资源，以便创建集群和访问 Amazon EMR。
+ 将 `iam:PassRole` 操作限制为特定的默认角色和对特定服务的 `iam:PassedToService` 访问权限。
+ 默认情况下，不再提供对 Amazon EC2、Amazon S3 和其它服务的访问权限。

本策略的内容如下所示。

**注意**  
您还可以使用控制台链接 [https://console.aws.amazon.com/iam/home#policies/arn:aws:iam::aws:policy/AmazonEMRFullAccessPolicy_v2](https://console.aws.amazon.com/iam/home#policies/arn:aws:iam::aws:policy/AmazonEMRFullAccessPolicy_v2) 查看该策略。

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#### [ JSON ]

****  

```
{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
    {
      "Sid": "RunJobFlowExplicitlyWithEMRManagedTag",
      "Effect": "Allow",
      "Action": [
        "elasticmapreduce:RunJobFlow"
      ],
      "Resource": [
        "*"
      ],
      "Condition": {
        "StringEquals": {
          "aws:RequestTag/for-use-with-amazon-emr-managed-policies": "true"
        }
      }
    },
    {
      "Sid": "ElasticMapReduceActions",
      "Effect": "Allow",
      "Action": [
        "elasticmapreduce:AddInstanceFleet",
        "elasticmapreduce:AddInstanceGroups",
        "elasticmapreduce:AddJobFlowSteps",
        "elasticmapreduce:AddTags",
        "elasticmapreduce:CancelSteps",
        "elasticmapreduce:CreateEditor",
        "elasticmapreduce:CreatePersistentAppUI",
        "elasticmapreduce:CreateSecurityConfiguration",
        "elasticmapreduce:DeleteEditor",
        "elasticmapreduce:DeleteSecurityConfiguration",
        "elasticmapreduce:DescribeCluster",
        "elasticmapreduce:DescribeEditor",
        "elasticmapreduce:DescribeJobFlows",
        "elasticmapreduce:DescribePersistentAppUI",
        "elasticmapreduce:DescribeSecurityConfiguration",
        "elasticmapreduce:DescribeStep",
        "elasticmapreduce:DescribeReleaseLabel",
        "elasticmapreduce:GetBlockPublicAccessConfiguration",
        "elasticmapreduce:GetManagedScalingPolicy",
        "elasticmapreduce:GetPersistentAppUIPresignedURL",
        "elasticmapreduce:GetAutoTerminationPolicy",
        "elasticmapreduce:ListBootstrapActions",
        "elasticmapreduce:ListClusters",
        "elasticmapreduce:ListEditors",
        "elasticmapreduce:ListInstanceFleets",
        "elasticmapreduce:ListInstanceGroups",
        "elasticmapreduce:ListInstances",
        "elasticmapreduce:ListSecurityConfigurations",
        "elasticmapreduce:ListSteps",
        "elasticmapreduce:ListSupportedInstanceTypes",
        "elasticmapreduce:ModifyCluster",
        "elasticmapreduce:ModifyInstanceFleet",
        "elasticmapreduce:ModifyInstanceGroups",
        "elasticmapreduce:OpenEditorInConsole",
        "elasticmapreduce:PutAutoScalingPolicy",
        "elasticmapreduce:PutBlockPublicAccessConfiguration",
        "elasticmapreduce:PutManagedScalingPolicy",
        "elasticmapreduce:RemoveAutoScalingPolicy",
        "elasticmapreduce:RemoveManagedScalingPolicy",
        "elasticmapreduce:RemoveTags",
        "elasticmapreduce:SetTerminationProtection",
        "elasticmapreduce:StartEditor",
        "elasticmapreduce:StopEditor",
        "elasticmapreduce:TerminateJobFlows",
        "elasticmapreduce:ViewEventsFromAllClustersInConsole"
      ],
      "Resource": [
        "*"
      ]
    },
    {
      "Sid": "ViewMetricsInEMRConsole",
      "Effect": "Allow",
      "Action": [
        "cloudwatch:GetMetricStatistics"
      ],
      "Resource": [
        "*"
      ]
    },
    {
      "Sid": "PassRoleForElasticMapReduce",
      "Effect": "Allow",
      "Action": [
        "iam:PassRole"
      ],
      "Resource": [
        "arn:aws:iam::*:role/EMR_DefaultRole",
        "arn:aws:iam::*:role/EMR_DefaultRole_V2"
      ],
      "Condition": {
        "StringLike": {
          "iam:PassedToService": "elasticmapreduce.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": "PassRoleForAutoScaling",
      "Effect": "Allow",
      "Action": [
        "iam:PassRole"
      ],
      "Resource": [
        "arn:aws:iam::*:role/EMR_AutoScaling_DefaultRole"
      ],
      "Condition": {
        "StringLike": {
          "iam:PassedToService": "application-autoscaling.amazonaws.com*"
        }
      }
    },
    {
      "Sid": "ElasticMapReduceServiceLinkedRole",
      "Effect": "Allow",
      "Action": [
        "iam:CreateServiceLinkedRole"
      ],
      "Resource": [
        "arn:aws:iam::*:role/aws-service-role/elasticmapreduce.amazonaws.com*/AWSServiceRoleForEMRCleanup*"
      ],
      "Condition": {
        "StringEquals": {
          "iam:AWSServiceName": [
            "elasticmapreduce.amazonaws.com",
            "elasticmapreduce.amazonaws.com.rproxy.govskope.us.cn"
          ]
        }
      }
    },
    {
      "Sid": "ConsoleUIActions",
      "Effect": "Allow",
      "Action": [
        "ec2:DescribeAccountAttributes",
        "ec2:DescribeAvailabilityZones",
        "ec2:DescribeImages",
        "ec2:DescribeKeyPairs",
        "ec2:DescribeNatGateways",
        "ec2:DescribeRouteTables",
        "ec2:DescribeSecurityGroups",
        "ec2:DescribeSubnets",
        "ec2:DescribeVpcs",
        "ec2:DescribeVpcEndpoints",
        "s3:ListAllMyBuckets",
        "iam:ListRoles"
      ],
      "Resource": [
        "*"
      ]
    }
  ]
}
```

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