AWS managed policies for AWS IoT Greengrass

An AWS managed policy is a standalone policy that is created and administered by AWS. AWS managed policies are designed to provide permissions for many common use cases so that you can start assigning permissions to users, groups, and roles.

Keep in mind that AWS managed policies might not grant least-privilege permissions for your specific use cases because they're available for all AWS customers to use. We recommend that you reduce permissions further by defining customer managed policies that are specific to your use cases.

You cannot change the permissions defined in AWS managed policies. If AWS updates the permissions defined in an AWS managed policy, the update affects all principal identities (users, groups, and roles) that the policy is attached to. AWS is most likely to update an AWS managed policy when a new AWS service is launched or new API operations become available for existing services.

For more information, see AWS managed policies in the IAM User Guide.

AWS managed policy: AWSGreengrassFullAccess

You can attach the AWSGreengrassFullAccess policy to your IAM identities.

This policy grants administrative permissions that allow a principal full access to all AWS IoT Greengrass actions.

Permissions details

This policy includes the following permissions:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "greengrass:*"
            ],
            "Resource": "*"
        }
    ]
}

AWS managed policy: AWSGreengrassReadOnlyAccess

You can attach the AWSGreengrassReadOnlyAccess policy to your IAM identities.

This policy grants read-only permissions that allow a principal to view, but not modify, information in AWS IoT Greengrass. For example, principals with these permissions can view the list of components deployed to a Greengrass core device, but can't create a deployment to change the components that run on that device.

Permissions details

This policy includes the following permissions:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "greengrass:List*",
                "greengrass:Get*"
            ],
            "Resource": "*"
        }
    ]
}

AWS managed policy: AWSGreengrassResourceAccessRolePolicy

You can attach the AWSGreengrassResourceAccessRolePolicy policy to your IAM entities. AWS IoT Greengrass also attaches this policy to a service role that allows AWS IoT Greengrass to perform actions on your behalf. For more information, see Greengrass service role.

This policy grants administrative permissions that allow AWS IoT Greengrass to perform essential tasks, such as retrieving your Lambda functions, managing AWS IoT device shadows, and verifying Greengrass client devices.

Permissions details

This policy includes the following permissions.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowGreengrassAccessToShadows",
            "Action": [
                "iot:DeleteThingShadow",
                "iot:GetThingShadow",
                "iot:UpdateThingShadow"
            ],
            "Effect": "Allow",
            "Resource": [
                "arn:aws:iot:*:*:thing/GG_*",
                "arn:aws:iot:*:*:thing/*-gcm",
                "arn:aws:iot:*:*:thing/*-gda",
                "arn:aws:iot:*:*:thing/*-gci"
            ]
        },
        {
            "Sid": "AllowGreengrassToDescribeThings",
            "Action": [
                "iot:DescribeThing"
            ],
            "Effect": "Allow",
            "Resource": "arn:aws:iot:*:*:thing/*"
        },
        {
            "Sid": "AllowGreengrassToDescribeCertificates",
            "Action": [
                "iot:DescribeCertificate"
            ],
            "Effect": "Allow",
            "Resource": "arn:aws:iot:*:*:cert/*"
        },
        {
            "Sid": "AllowGreengrassToCallGreengrassServices",
            "Action": [
                "greengrass:*"
            ],
            "Effect": "Allow",
            "Resource": "*"
        },
        {
            "Sid": "AllowGreengrassToGetLambdaFunctions",
            "Action": [
                "lambda:GetFunction",
                "lambda:GetFunctionConfiguration"
            ],
            "Effect": "Allow",
            "Resource": "*"
        },
        {
            "Sid": "AllowGreengrassToGetGreengrassSecrets",
            "Action": [
                "secretsmanager:GetSecretValue"
            ],
            "Effect": "Allow",
            "Resource": "arn:aws:secretsmanager:*:*:secret:greengrass-*"
        },
        {
            "Sid": "AllowGreengrassAccessToS3Objects",
            "Action": [
                "s3:GetObject"
            ],
            "Effect": "Allow",
            "Resource": [
                "arn:aws:s3:::*Greengrass*",
                "arn:aws:s3:::*GreenGrass*",
                "arn:aws:s3:::*greengrass*",
                "arn:aws:s3:::*Sagemaker*",
                "arn:aws:s3:::*SageMaker*",
                "arn:aws:s3:::*sagemaker*"
            ]
        },
        {
            "Sid": "AllowGreengrassAccessToS3BucketLocation",
            "Action": [
                "s3:GetBucketLocation"
            ],
            "Effect": "Allow",
            "Resource": "*"
        },
        {
            "Sid": "AllowGreengrassAccessToSageMakerTrainingJobs",
            "Action": [
                "sagemaker:DescribeTrainingJob"
            ],
            "Effect": "Allow",
            "Resource": [
                "arn:aws:sagemaker:*:*:training-job/*"
            ]
        }
    ]
}

AWS IoT Greengrass updates to AWS managed policies

You can view details about updates to AWS managed policies for AWS IoT Greengrass from the time this service began tracking these changes. For automatic alerts about changes to this page, subscribe to the RSS feed on the AWS IoT Greengrass V2 document history page.