AmazonDynamoDBReadOnlyAccess
Summary
Provides read only access to Amazon DynamoDB via the AWS Management Console. The Amazon DynamoDB Developer Guide says it grants read-only access to Amazon DynamoDB, with read-only access to DynamoDB Accelerator (DAX) and view access to related services.
Permissions imported from the AWS Managed Policy Reference Guide; other sections reviewed against the listed AWS sources.
Identity
- ARN
arn:aws:iam::aws:policy/AmazonDynamoDBReadOnlyAccess- Default version
- v15
- Created
- Last edited
- Services
- application-autoscaling, cloudwatch, datapipeline, dax, dynamodb, ec2, iam, kinesis, kms, lambda, resource-groups, sns, tag
Control-plane actions (71)
By access level: 25 List, 46 Read.
| Service | Granted | Access levels and limits | Granted by |
|---|---|---|---|
| Application Auto Scaling | 3 of 14 | 3 Read; 0 restricted, 0 conditional | application-autoscaling:DescribeScalableTargets, application-autoscaling:DescribeScalingActivities, application-autoscaling:DescribeScalingPolicies |
| CloudWatch | 4 of 160 | 4 Read; 1 restricted, 0 conditional | cloudwatch:DescribeAlarmHistory, cloudwatch:DescribeAlarms, cloudwatch:DescribeAlarmsForMetric, cloudwatch:GetInsightRuleReport |
| Data Pipeline | 5 of 21 | 1 List, 4 Read; 0 restricted, 0 conditional | datapipeline:DescribeObjects, datapipeline:DescribePipelines, datapipeline:GetPipelineDefinition, datapipeline:ListPipelines, datapipeline:QueryObjects |
| DynamoDBAccelerator | 11 of 30 | 5 List, 6 Read; 0 restricted, 0 conditional | dax:BatchGetItem, dax:Describe*, dax:GetItem, dax:List*, dax:Query, dax:Scan |
| DynamoDB | 28 of 68 | 7 List, 21 Read; 0 restricted, 0 conditional | dynamodb:Describe*, dynamodb:GetAbacStatus, dynamodb:GetResourcePolicy, dynamodb:List* |
| EC2 | 3 of 834 | 3 List; 0 restricted, 0 conditional | ec2:DescribeSecurityGroups, ec2:DescribeSubnets, ec2:DescribeVpcs |
| IAM | 2 of 190 | 1 List, 1 Read; 0 restricted, 0 conditional | iam:GetRole, iam:ListRoles |
| Kinesis | 3 of 42 | 1 List, 2 Read; 0 restricted, 0 conditional | kinesis:DescribeStream, kinesis:DescribeStreamSummary, kinesis:ListStreams |
| KMS | 2 of 58 | 1 List, 1 Read; 0 restricted, 0 conditional | kms:DescribeKey, kms:ListAliases |
| Lambda | 3 of 121 | 2 List, 1 Read; 0 restricted, 0 conditional | lambda:GetFunctionConfiguration, lambda:ListEventSourceMappings, lambda:ListFunctions |
| Resource Groups | 4 of 29 | 2 List, 2 Read; 0 restricted, 0 conditional | resource-groups:GetGroup, resource-groups:GetGroupQuery, resource-groups:ListGroupResources, resource-groups:ListGroups |
| SNS | 2 of 40 | 2 List; 0 restricted, 0 conditional | sns:ListSubscriptionsByTopic, sns:ListTopics |
| Resource Group Tagging | 1 of 9 | 1 Read; 0 restricted, 0 conditional | tag:GetResources |
Application Auto Scaling: 3 actions
- application-autoscaling:DescribeScalableTargets (Read)
- application-autoscaling:DescribeScalingActivities (Read)
- application-autoscaling:DescribeScalingPolicies (Read)
CloudWatch: 4 actions
- cloudwatch:DescribeAlarmHistory (Read)
- cloudwatch:DescribeAlarms (Read)
- cloudwatch:DescribeAlarmsForMetric (Read)
- cloudwatch:GetInsightRuleReport (Read)
Data Pipeline: 5 actions
- datapipeline:DescribeObjects (Read)
- datapipeline:DescribePipelines (Read)
- datapipeline:GetPipelineDefinition (Read)
- datapipeline:ListPipelines (List)
- datapipeline:QueryObjects (Read)
DynamoDBAccelerator: 11 actions
- dax:BatchGetItem (Read)
- dax:DescribeClusters (List)
- dax:DescribeDefaultParameters (List)
- dax:DescribeEvents (List)
- dax:DescribeParameterGroups (List)
- dax:DescribeParameters (Read)
- dax:DescribeSubnetGroups (List)
- dax:GetItem (Read)
- dax:ListTags (Read)
- dax:Query (Read)
- dax:Scan (Read)
DynamoDB: 28 actions
- dynamodb:DescribeBackup (Read)
- dynamodb:DescribeBulkOperation (Read)
- dynamodb:DescribeContinuousBackups (Read)
- dynamodb:DescribeContributorInsights (Read)
- dynamodb:DescribeEndpoints (Read)
- dynamodb:DescribeExport (Read)
- dynamodb:DescribeGlobalTable (Read)
- dynamodb:DescribeGlobalTableSettings (Read)
- dynamodb:DescribeImport (Read)
- dynamodb:DescribeKinesisStreamingDestination (Read)
- dynamodb:DescribeLimits (Read)
- dynamodb:DescribeReservedCapacity (Read)
- dynamodb:DescribeReservedCapacityOfferings (Read)
- dynamodb:DescribeStream (Read)
- dynamodb:DescribeTable (Read)
- dynamodb:DescribeTableReplicaAutoScaling (Read)
- dynamodb:DescribeTimeToLive (Read)
- dynamodb:GetAbacStatus (Read)
- dynamodb:GetResourcePolicy (Read)
- dynamodb:ListBackups (List)
- dynamodb:ListBulkOperations (List)
- dynamodb:ListContributorInsights (List)
- dynamodb:ListExports (List)
- dynamodb:ListGlobalTables (List)
- dynamodb:ListImports (List)
- dynamodb:ListStreams (Read)
- dynamodb:ListTables (List)
- dynamodb:ListTagsOfResource (Read)
EC2: 3 actions
- ec2:DescribeSecurityGroups (List)
- ec2:DescribeSubnets (List)
- ec2:DescribeVpcs (List)
IAM: 2 actions
- iam:GetRole (Read)
- iam:ListRoles (List)
Kinesis: 3 actions
- kinesis:DescribeStream (Read)
- kinesis:DescribeStreamSummary (Read)
- kinesis:ListStreams (List)
KMS: 2 actions
- kms:DescribeKey (Read)
- kms:ListAliases (List)
Lambda: 3 actions
- lambda:GetFunctionConfiguration (Read)
- lambda:ListEventSourceMappings (List)
- lambda:ListFunctions (List)
Resource Groups: 4 actions
- resource-groups:GetGroup (Read)
- resource-groups:GetGroupQuery (Read)
- resource-groups:ListGroupResources (List)
- resource-groups:ListGroups (List)
SNS: 2 actions
- sns:ListSubscriptionsByTopic (List)
- sns:ListTopics (List)
Resource Group Tagging: 1 actions
- tag:GetResources (Read)
Data-plane actions (8)
By access level: 1 List, 7 Read.
| Service | Granted | Access levels and limits | Granted by |
|---|---|---|---|
| CloudWatch | 3 of 5 | 1 List, 2 Read; 0 restricted, 0 conditional | cloudwatch:GetMetricData, cloudwatch:GetMetricStatistics, cloudwatch:ListMetrics |
| DynamoDB | 5 of 17 | 5 Read; 0 restricted, 0 conditional | dynamodb:BatchGetItem, dynamodb:GetItem, dynamodb:PartiQLSelect, dynamodb:Query, dynamodb:Scan |
CloudWatch: 3 actions
- cloudwatch:GetMetricData (Read)
- cloudwatch:GetMetricStatistics (Read)
- cloudwatch:ListMetrics (List)
DynamoDB: 5 actions
- dynamodb:BatchGetItem (Read)
- dynamodb:GetItem (Read)
- dynamodb:PartiQLSelect (Read)
- dynamodb:Query (Read)
- dynamodb:Scan (Read)
Excluded and conditional actions
No patterns are excluded by NotAction or Deny statements.
Resource scope and attachment
Resource scope across granted actions: mixed.
Can be attached: Yes, to users, groups and roles.
Why this tier
- Grants only List and Read actions.
Guidance
Practical scope
The GeneralReadOnlyAccess statement applies to Resource "*" and allows dynamodb:BatchGetItem, dynamodb:GetItem, dynamodb:Query, dynamodb:Scan, dynamodb:PartiQLSelect, dynamodb:Describe* and dynamodb:List*, the DAX equivalents (dax:GetItem, dax:BatchGetItem, dax:Query, dax:Scan, dax:Describe*, dax:List*), and describe and list actions for Application Auto Scaling, CloudWatch, AWS Data Pipeline, Amazon EC2, IAM, AWS KMS, Amazon SNS, Lambda, AWS Resource Groups and Kinesis. A second statement allows cloudwatch:GetInsightRuleReport on DynamoDBContributorInsights rules.
Use cases
- Give users, groups or roles read-only access to DynamoDB, including viewing the Application Auto Scaling policies, CloudWatch alarms, KMS keys and Kinesis streams related to a table.
Best practices
- The best practice is to create custom IAM policies that grant least privilege to the users, roles or groups that require them.
Security considerations
- The policy reads table data, not only table metadata: it allows dynamodb:GetItem, dynamodb:BatchGetItem, dynamodb:Query, dynamodb:Scan and dynamodb:PartiQLSelect, and the matching DAX actions, on all resources.
- You cannot change the permissions in an AWS managed policy. If AWS updates the policy, the update affects every user, group and role it is attached to.
Assignment guidance
You can attach this policy to your users, groups and roles. The reference page also links to guidance on creating a permission set using AWS managed policies in IAM Identity Center. The Amazon DynamoDB Developer Guide says you can attach it to your IAM identities. It fits where read-only access to DynamoDB is intended.
Related policies
Same service
- AmazonDynamoDBFullAccess
- AmazonDynamoDBFullAccess_v2
- AmazonDynamoDBFullAccesswithDataPipeline
- AmazonEC2RoleforDataPipelineRole
- AmazonElasticMapReduceforEC2Role
- AWSApplicationAutoscalingDynamoDBTablePolicy
- AWSElasticBeanstalkRoleWorkerTier
- AWSIoTRuleActions
Same domain
Frequently asked questions
- When should I attach AmazonDynamoDBReadOnlyAccess?
- The Amazon DynamoDB Developer Guide says you can attach it to your IAM identities and that it grants read-only access to Amazon DynamoDB. Attach it where reading DynamoDB tables is the intended scope. For narrower access, AWS recommends custom policies that grant least privilege.
- What does AmazonDynamoDBReadOnlyAccess grant?
- It allows dynamodb:GetItem, dynamodb:BatchGetItem, dynamodb:Query, dynamodb:Scan, dynamodb:PartiQLSelect, dynamodb:Describe* and dynamodb:List*, the DAX equivalents, and describe and list actions for related services such as Application Auto Scaling, CloudWatch, AWS KMS and Kinesis, on all resources.
- What are the security risks of AmazonDynamoDBReadOnlyAccess?
- It reads item data from every table (dynamodb:Scan, dynamodb:Query) and from DAX clusters. AWS recommends custom IAM policies that grant least privilege, and updates to the policy affect every identity it is attached to.
Policy JSON
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "GeneralReadOnlyAccess",
"Action": [
"application-autoscaling:DescribeScalableTargets",
"application-autoscaling:DescribeScalingActivities",
"application-autoscaling:DescribeScalingPolicies",
"cloudwatch:DescribeAlarmHistory",
"cloudwatch:DescribeAlarms",
"cloudwatch:DescribeAlarmsForMetric",
"cloudwatch:GetMetricStatistics",
"cloudwatch:ListMetrics",
"cloudwatch:GetMetricData",
"datapipeline:DescribeObjects",
"datapipeline:DescribePipelines",
"datapipeline:GetPipelineDefinition",
"datapipeline:ListPipelines",
"datapipeline:QueryObjects",
"dynamodb:BatchGetItem",
"dynamodb:Describe*",
"dynamodb:List*",
"dynamodb:GetAbacStatus",
"dynamodb:GetItem",
"dynamodb:GetResourcePolicy",
"dynamodb:Query",
"dynamodb:Scan",
"dynamodb:PartiQLSelect",
"dax:Describe*",
"dax:List*",
"dax:GetItem",
"dax:BatchGetItem",
"dax:Query",
"dax:Scan",
"ec2:DescribeVpcs",
"ec2:DescribeSubnets",
"ec2:DescribeSecurityGroups",
"iam:GetRole",
"iam:ListRoles",
"kms:DescribeKey",
"kms:ListAliases",
"sns:ListSubscriptionsByTopic",
"sns:ListTopics",
"lambda:ListFunctions",
"lambda:ListEventSourceMappings",
"lambda:GetFunctionConfiguration",
"resource-groups:ListGroups",
"resource-groups:ListGroupResources",
"resource-groups:GetGroup",
"resource-groups:GetGroupQuery",
"tag:GetResources",
"kinesis:ListStreams",
"kinesis:DescribeStream",
"kinesis:DescribeStreamSummary"
],
"Effect": "Allow",
"Resource": "*"
},
{
"Sid": "CCIAccess",
"Action": "cloudwatch:GetInsightRuleReport",
"Effect": "Allow",
"Resource": "arn:aws:cloudwatch:*:*:insight-rule/DynamoDBContributorInsights*"
}
]
}
Version history
Current version v15, edited by AWS on 2024-11-18. 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/AmazonDynamoDBReadOnlyAccess
aws iam attach-user-policy --user-name USER_NAME --policy-arn arn:aws:iam::aws:policy/AmazonDynamoDBReadOnlyAccess
aws iam attach-group-policy --group-name GROUP_NAME --policy-arn arn:aws:iam::aws:policy/AmazonDynamoDBReadOnlyAccessCloudFormation
Resources:
ExampleRole:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument: {} # replace with your trust policy
ManagedPolicyArns:
- arn:aws:iam::aws:policy/AmazonDynamoDBReadOnlyAccessTerraform
resource "aws_iam_role_policy_attachment" "amazondynamodbreadonlyaccess" {
role = aws_iam_role.example.name
policy_arn = "arn:aws:iam::aws:policy/AmazonDynamoDBReadOnlyAccess"
}CDK (TypeScript)
role.addManagedPolicy(
iam.ManagedPolicy.fromAwsManagedPolicyName("AmazonDynamoDBReadOnlyAccess"),
);Sources
- AmazonDynamoDBReadOnlyAccess (AWS Managed Policy Reference Guide) (retrieved ; supports summary, practicalScope, securityConsiderations, assignmentGuidance, faqs)
- AWS managed policies for Amazon DynamoDB (Amazon DynamoDB Developer Guide) (retrieved ; supports summary, useCases, assignmentGuidance, faqs)
- Using identity-based policies (IAM policies) for Amazon DynamoDB (Amazon DynamoDB Developer Guide) (retrieved ; supports bestPractices, faqs)
- Managed policies and inline policies (IAM User Guide) (retrieved ; supports securityConsiderations, faqs)