Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Examples of policy summaries

The following examples include JSON policies with their associated policy summaries, the service summaries, and the action summaries to help you understand the permissions given through a policy.

Policy 1: DenyCustomerBucket

This policy demonstrates an allow and a deny for the same service.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "FullAccess",
            "Effect": "Allow",
            "Action": ["s3:*"],
            "Resource": ["*"]
        },
        {
            "Sid": "DenyCustomerBucket",
            "Action": ["s3:*"],
            "Effect": "Deny",
            "Resource": ["arn:aws:s3:::customer", "arn:aws:s3:::customer/*" ]
        }
    ]
}

DenyCustomerBucket Policy Summary:

DenyCustomerBucket S3 (Explicit deny) Service Summary:

GetObject (Read) Action Summary:

Policy 2: DynamoDbRowCognitoID

This policy provides row-level access to Amazon DynamoDB based on the user's Amazon Cognito ID.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "dynamodb:DeleteItem",
                "dynamodb:GetItem",
                "dynamodb:PutItem",
                "dynamodb:UpdateItem"
            ],
            "Resource": [
                "arn:aws:dynamodb:us-west-1:123456789012:table/myDynamoTable"
            ],
            "Condition": {
                "ForAllValues:StringEquals": {
                    "dynamodb:LeadingKeys": [
                        "${cognito-identity.amazonaws.com:sub}"
                    ]
                }
            }
        }
    ]
}

DynamoDbRowCognitoID Policy Summary:

DynamoDbRowCognitoID DynamoDB (Allow) Service Summary:

GetItem (List) Action Summary:

Policy 3: MultipleResourceCondition

This policy includes multiple resources and conditions.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:PutObject",
                "s3:PutObjectAcl"
            ],
            "Resource": ["arn:aws:s3:::Apple_bucket/*"],
            "Condition": {"StringEquals": {"s3:x-amz-acl": ["public-read"]}}
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:PutObject",
                "s3:PutObjectAcl"
            ],
            "Resource": ["arn:aws:s3:::Orange_bucket/*"],
            "Condition": {"StringEquals": {
                "s3:x-amz-acl": ["custom"],
                "s3:x-amz-grant-full-control": ["1234"]
            }}
        }
    ]
}

MultipleResourceCondition Policy Summary:

MultipleResourceCondition S3 (Allow) Service Summary:

PutObject (Write) Action Summary:

Policy 4: EC2_troubleshoot

The following policy allows users to get a screenshot of a running Amazon EC2 instance, which can help with EC2 troubleshooting. This policy also permits viewing information about the items in the Amazon S3 developer bucket.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "ec2:GetConsoleScreenshot"
            ],
            "Resource": [
                "*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:ListBucket"
            ],
            "Resource": [
                "arn:aws:s3:::developer"
            ]
        }
    ]
}

EC2_Troubleshoot Policy Summary:

EC2_Troubleshoot S3 (Allow) Service Summary:

ListBucket (List) Action Summary:

Policy 5: CodeBuild_CodeCommit_CodeDeploy

This policy provides access to specific CodeBuild, CodeCommit, and CodeDeploy resources. Because these resources are specific to each service, they appear only with the matching service. If you include a resource that does not match any services in the Action element, then the resource appears in all action summaries.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "Stmt1487980617000",
            "Effect": "Allow",
            "Action": [
                "codebuild:*",
                "codecommit:*",
                "codedeploy:*"
            ],
            "Resource": [
                "arn:aws:codebuild:us-west-2:123456789012:project/my-demo-project",
                "arn:aws:codecommit:us-west-2:123456789012:MyDemoRepo",
                "arn:aws:codedeploy:us-west-2:123456789012:application:WordPress_App",
                "arn:aws:codedeploy:us-west-2:123456789012:instance/AssetTag*"
            ]
        }
    ]
}

CodeBuild_CodeCommit_CodeDeploy Policy Summary:

CodeBuild_CodeCommit_CodeDeploy CodeBuild (Allow) Service Summary:

CodeBuild_CodeCommit_CodeDeploy StartBuild (Write) Action Summary: