AmazonMCSReadOnlyAccess

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Summary

Provide read only access to Amazon Managed Apache Cassandra Service

Permissions imported from the AWS Managed Policy Reference Guide; other sections pending editorial review.

Identity

ARN: arn:aws:iam::aws:policy/AmazonMCSReadOnlyAccess
Default version: v2
Created: 2019-12-03
Last edited: 2020-04-17
Services: application-autoscaling, cassandra, cloudwatch

Control-plane actions (6)

By access level: 6 Read.

Control-plane actions by service
Service	Granted	Access levels and limits	Granted by
Application Auto Scaling	4 of 14	4 Read; 0 restricted, 0 conditional	application-autoscaling:DescribeScalableTargets, application-autoscaling:DescribeScalingActivities, application-autoscaling:DescribeScalingPolicies, application-autoscaling:DescribeScheduledActions
Keyspaces	1 of 19	1 Read; 0 restricted, 0 conditional	cassandra:Select
CloudWatch	1 of 160	1 Read; 0 restricted, 0 conditional	cloudwatch:DescribeAlarms

Application Auto Scaling: 4 actions

application-autoscaling:DescribeScalableTargets (Read)
application-autoscaling:DescribeScalingActivities (Read)
application-autoscaling:DescribeScalingPolicies (Read)
application-autoscaling:DescribeScheduledActions (Read)

Keyspaces: 1 actions

cassandra:Select (Read)

CloudWatch: 1 actions

cloudwatch:DescribeAlarms (Read)

Data-plane actions (0)

By access level: none.

This policy grants no actions in this plane.

Excluded and conditional actions

No patterns are excluded by NotAction or Deny statements.

Resource scope and attachment

Resource scope across granted actions: all-resources.

Can be attached: Yes, to users, groups and roles.

Why this tier

Grants only List and Read actions.

Guidance

Pending editorial review. The permission data on this page comes straight from AWS; this section will be filled in once a reviewed guide exists.

Same service

Same domain

Frequently asked questions

Pending editorial review. The permission data on this page comes straight from AWS; this section will be filled in once a reviewed guide exists.

Policy JSON

Download policy.json

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "cassandra:Select"
      ],
      "Resource": "*"
    },
    {
      "Effect": "Allow",
      "Action": [
        "application-autoscaling:DescribeScalableTargets",
        "application-autoscaling:DescribeScalingActivities",
        "application-autoscaling:DescribeScalingPolicies",
        "application-autoscaling:DescribeScheduledActions",
        "cloudwatch:DescribeAlarms"
      ],
      "Resource": "*"
    }
  ]
}

Version history

Current version v2, edited by AWS on 2020-04-17. Version history is recorded from 2026-11-11. Earlier versions are in the IAM console under Policy versions.

Attach snippets

AWS CLI

aws iam attach-role-policy --role-name ROLE_NAME --policy-arn arn:aws:iam::aws:policy/AmazonMCSReadOnlyAccess
aws iam attach-user-policy --user-name USER_NAME --policy-arn arn:aws:iam::aws:policy/AmazonMCSReadOnlyAccess
aws iam attach-group-policy --group-name GROUP_NAME --policy-arn arn:aws:iam::aws:policy/AmazonMCSReadOnlyAccess

CloudFormation

Resources:
  ExampleRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument: {}  # replace with your trust policy
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AmazonMCSReadOnlyAccess

Terraform

resource "aws_iam_role_policy_attachment" "amazonmcsreadonlyaccess" {
  role       = aws_iam_role.example.name
  policy_arn = "arn:aws:iam::aws:policy/AmazonMCSReadOnlyAccess"
}

CDK (TypeScript)

role.addManagedPolicy(
  iam.ManagedPolicy.fromAwsManagedPolicyName("AmazonMCSReadOnlyAccess"),
);

Sources

Pending editorial review. No editorial sources are listed yet.