The Amazon EMR role defines the allowable actions for Amazon EMR when it provisions resources and performs service-level tasks that aren't performed in the context of an Amazon EC2 instance running within a cluster. For example, the service role is used to provision EC2 instances when a cluster launches.
-
The default role name is
EMR_DefaultRole_V2. -
The Amazon EMR scoped default managed policy attached to
EMR_DefaultRole_V2isAmazonEMRServicePolicy_v2. This v2 policy replaces the deprecated default managed policy,AmazonElasticMapReduceRole.
AmazonEMRServicePolicy_v2 depends on scoped down access to resources
that Amazon EMR provisions or uses. When you use this policy, you need to pass the user
tag for-use-with-amazon-emr-managed-policies = true when provisioning
the cluster. Amazon EMR will automatically propagate those tags. Additionally, you may
need to manually add a user tag to specific types of resources, such as EC2 security
groups that were not created by Amazon EMR. See Tagging resources to use managed
policies.
Important
Amazon EMR uses this Amazon EMR service role and the AWSServiceRoleForEMRCleanup role to clean up cluster
resources in your account that you no longer use, such as Amazon EC2 instances. You
must include actions for the role policies to delete or terminate the resources.
Otherwise, Amazon EMR can’t perform these cleanup actions, and you might incur costs
for unused resources that remain on the cluster.
The following shows the contents of the current
AmazonEMRServicePolicy_v2 policy. You can also see the current
content of the AmazonEMRServicePolicy_v2
{
"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"
}
}
}
]
}Your service role should use the following trust policy.
Important
The following trust policy includes the aws:SourceArn and aws:SourceAccount global condition keys, which
limit the permissions that you give Amazon EMR to particular resources in your
account. Using them can protect you against the confused deputy
problem.
{
"Version": "2008-10-17",
"Statement": [
{
"Sid": "",
"Effect": "Allow",
"Principal": {
"Service": "elasticmapreduce.amazonaws.com"
},
"Action": "sts:AssumeRole",
"Condition": {
"StringEquals": {
"aws:SourceAccount": "<account-id>"
},
"ArnLike": {
"aws:SourceArn": "arn:aws:elasticmapreduce:<region>:<account-id>:*"
}
}
}
]
}