# Amazon managed policy: AmazonSageMakerClusterInstanceRolePolicy
<a name="security-iam-awsmanpol-AmazonSageMakerClusterInstanceRolePolicy"></a>

This policy grants permissions commonly needed to use Amazon SageMaker HyperPod.

**Permissions details**

This Amazon managed policy includes the following permissions.
+ `cloudwatch` – Allows principals to post Amazon CloudWatch metrics.
+ `logs` – Allows principals to publish CloudWatch log streams.
+ `s3` – Allows principals to list and retrieve lifecycle script files from an Amazon S3 bucket in your account. These buckets are limited to those whose name starts with "sagemaker-".
+ `ssmmessages` – Allows principals to open a connection to Amazon Systems Manager.

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#### [ JSON ]

****  

```
{
  "Version":"2012-10-17",		 	 	 
  "Statement" : [
    {
      "Sid" : "CloudwatchLogStreamPublishPermissions",
      "Effect" : "Allow",
      "Action" : [
        "logs:PutLogEvents",
        "logs:CreateLogStream",
        "logs:DescribeLogStreams"
      ],
      "Resource" : [
        "arn:aws-cn:logs:*:*:log-group:/aws/sagemaker/Clusters/*:log-stream:*"
      ]
    },
    {
      "Sid" : "CloudwatchLogGroupCreationPermissions",
      "Effect" : "Allow",
      "Action" : [
        "logs:CreateLogGroup"
      ],
      "Resource" : [
        "arn:aws-cn:logs:*:*:log-group:/aws/sagemaker/Clusters/*"
      ]
    },
    {
      "Sid" : "CloudwatchPutMetricDataAccess",
      "Effect" : "Allow",
      "Action" : [
        "cloudwatch:PutMetricData"
      ],
      "Resource" : [
        "*"
      ],
      "Condition" : {
        "StringEquals" : {
          "cloudwatch:namespace" : "/aws/sagemaker/Clusters"
        }
      }
    },
    {
      "Sid" : "DataRetrievalFromS3BucketPermissions",
      "Effect" : "Allow",
      "Action" : [
        "s3:ListBucket",
        "s3:GetObject"
      ],
      "Resource" : [
        "arn:aws-cn:s3:::sagemaker-*"
      ],
      "Condition" : {
        "StringEquals" : {
          "aws:ResourceAccount" : "${aws:PrincipalAccount}"
        }
      }
    },
    {
      "Sid" : "SSMConnectivityPermissions",
      "Effect" : "Allow",
      "Action" : [
        "ssmmessages:CreateControlChannel",
        "ssmmessages:CreateDataChannel",
        "ssmmessages:OpenControlChannel",
        "ssmmessages:OpenDataChannel"
      ],
      "Resource" : "*"
    }
  ]
}
```

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