IAM access roles for Amazon Kendra

When you create an index, data source, or an FAQ, Amazon Kendra needs access to the AWS resources required to create the Amazon Kendra resource. You must create a AWS Identity and Access Management (IAM) policy before you create the Amazon Kendra resource. When you call the operation, you provide the Amazon Resource Name (ARN) of the role with the policy attached. For example, if you are calling the BatchPutDocument operation to add documents from an Amazon S3 bucket, you provide Amazon Kendra with a role with a policy that has access to the bucket.

The Amazon Kendra console enables you to create a new IAM role or to choose an IAM existing role to use. The console displays roles that have the string "kendra" or "Kendra" in the role name.

The following topics provide details for the required policies. If you create IAM roles using the Amazon Kendra console these policies are created for you.

IAM roles for indexes

When you create an index, you must provide an IAM role with permission to write to an Amazon CloudWatch Logs. You must also provide a trust policy that allows Amazon Kendra to assume the role. The following are the policies that must be provided.

A role policy to enable Amazon Kendra to access a CloudWatch log.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "cloudwatch:PutMetricData",
            "Resource": "*",
            "Condition": {
                "StringEquals": {
                    "cloudwatch:namespace": "Kendra"
                }
            }
        },
        {
            "Effect": "Allow",
            "Action": "logs:DescribeLogGroups",
            "Resource": "*"
        },
        {
            "Effect": "Allow",
            "Action": "logs:CreateLogGroup",
            "Resource": "arn:aws:logs:region:account ID:log-group:/aws/kendra/*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "logs:DescribeLogStreams",
                "logs:CreateLogStream",
                "logs:PutLogEvents"
            ],
            "Resource": "arn:aws:logs:region:account ID:log-group:/aws/kendra/*:log-stream:*"
        }
    ]
}

A role policy to enable Amazon Kendra to access AWS Secrets Manager. If you are using user context with Secrets Manager as a key location, you can use the following policy.

{
   "Version":"2012-10-17",
   "Statement":[
      {
         "Effect":"Allow",
         "Action":"cloudwatch:PutMetricData",
         "Resource":"*",
         "Condition":{
            "StringEquals":{
               "cloudwatch:namespace":"Kendra"
            }
         }
      },
      {
         "Effect":"Allow",
         "Action":"logs:DescribeLogGroups",
         "Resource":"*"
      },
      {
         "Effect":"Allow",
         "Action":"logs:CreateLogGroup",
         "Resource":"arn:aws:logs:region:account ID:log-group:/aws/kendra/*"
      },
      {
         "Effect":"Allow",
         "Action":[
            "logs:DescribeLogStreams",
            "logs:CreateLogStream",
            "logs:PutLogEvents"
         ],
         "Resource":"arn:aws:logs:region:account ID:log-group:/aws/kendra/*:log-stream:*"
      },
      {
         "Effect":"Allow",
         "Action":[
            "secretsmanager:GetSecretValue"
         ],
         "Resource":[
            "arn:aws:secretsmanager:region:account ID:secret:secret_id"
         ]
      },
      {
         "Effect":"Allow",
         "Action":[
            "kms:Decrypt"
         ],
         "Resource":[
            "arn:aws:kms:region:account ID:key/key_id"
         ],
         "Condition":{
            "StringLike":{
               "kms:ViaService":[
                  "secretsmanager.*.amazonaws.com"
               ]
            }
         }
      }
   ]
}

A trust policy to enable Amazon Kendra to assume a role.

{
    "Version": "2012-10-17",
    "Statement": {
        "Effect": "Allow",
        "Principal": {
            "Service": "kendra.amazonaws.com"
        },
        "Action": "sts:AssumeRole"
    }
}

IAM Roles for the BatchPutDocument operation

When you use the BatchPutDocument operation to index documents in an Amazon S3 bucket, you must provide Amazon Kendra with an IAM role with access to the bucket. You must also provide a trust policy that enables Amazon Kendra to assume the role. If the documents in the bucket are encrypted, you must provide permission to use the AWS KMS customer master key (CMK) to decrypt the documents.

A required role policy to enable Amazon Kendra to access an Amazon S3 bucket.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetObject"
            ],
            "Resource": [
                "arn:aws:s3:::bucket name/*"
            ]
        }
    ]
}

A required trust policy to enable Amazon Kendra to assume a role.

{
    "Version": "2012-10-17",
    "Statement": {
        "Sid": "AllowKendraToAssumeAttachedRole",
        "Effect": "Allow",
        "Principal": {
            "Service": "kendra.amazonaws.com"
        },
        "Action": "sts:AssumeRole"
    }
}

An optional role policy to enable Amazon Kendra to use an AWS KMS customer master key (CMK) to decrypt documents in an Amazon S3 bucket.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": [
                "arn:aws:kms:region:account ID:key/key ID"
            ]
        }
    ]
}

IAM roles for data sources

When you use the CreateDataSource operation, you must give Amazon Kendra an IAM role that has permission to access the database resources. The specific permissions required depend on the data source.

Topics

• IAM roles for Amazon S3 data sources
• IAM role for Confluence server data sources
• IAM roles for database data sources
• IAM roles for Google Workspace Drive data sources
• IAM roles for Microsoft OneDrive data sources
• IAM role for Salesforce data sources
• IAM role for ServiceNow data sources
• IAM roles for Microsoft SharePoint data sources
• Virtual private cloud (VPC) IAM role
• IAM roles for web crawler data sources
• IAM roles for Amazon WorkDocs data sources

IAM roles for Amazon S3 data sources

When you use an Amazon S3 bucket as a data source, you supply a role that has permission to access the bucket, and to use the BatchPutDocument and BatchDeleteDocument operations. If the documents in the Amazon S3 bucket are encrypted, you must provide permission to use the AWS KMS customer master key (CMK) to decrypt the documents.

A required role policy to enable Amazon Kendra to use an Amazon S3 bucket as a data source.

{
    "Version": "2012-10-17",
    "Statement": [
         {
            "Action": [
                "s3:GetObject"
            ],
            "Resource": [
                "arn:aws:s3:::bucket name/*"
            ],
            "Effect": "Allow"
        },
        {
            "Action": [
                "s3:ListBucket"
            ],
            "Resource": [
                "arn:aws:s3:::bucket name"
            ],
            "Effect": "Allow"
        },
        {
            "Effect": "Allow",
            "Action": [
                "kendra:BatchPutDocument",
                "kendra:BatchDeleteDocument"
            ],
            "Resource": [
                "arn:aws:kendra:region:account ID:index/index ID"
            ]
        }
    ]
}

An optional role policy to enable Amazon Kendra to use an AWS KMS customer master key (CMK) to decrypt documents in an Amazon S3 bucket.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": [
                "arn:aws:kms:region:account ID:key/key ID"
            ]
        }
    ]
}

IAM role for Confluence server data sources

When you use a Confluence server as a data source, you provide a role with the following policies:

• Permission to access the AWS Secrets Manager secret that contains the credentials necessary to connect to the Confluence server. For more information about the contents of the secret, see Using an Atlassian Confluence data source.

• Permission to use the AWS KMS customer master key (CMK) to decrypt the user name and password secret stored by Secrets Manager.

• Permission to use the BatchPutDocument and BatchDeleteDocument operations to update the index.

{
  "Version": "2012-10-17",
  "Statement": [
  {
    "Effect": "Allow",
    "Action": [
      "secretsmanager:GetSecretValue"
    ],
    "Resource": [
      "arn:aws:secretsmanager:region:account ID:secret:secret ID"
    ]
  },
  {
    "Effect": "Allow",
    "Action": [
      "kms:Decrypt"
    ],
    "Resource": [
      "arn:aws:kms:region:account ID:key/key ID"
    ],
    "Condition": {
      "StringLike": {
        "kms:ViaService": [
          "secretsmanager.*.amazonaws.com"
        ]
      }
    }
  },
  {
    "Effect": "Allow",
    "Action": [
      "kendra:BatchPutDocument",
      "kendra:BatchDeleteDocument"
    ],
    "Resource": "arn:aws:kendra:region:account ID:index/index ID"
  }]
}

If you are using a VPC, provide a policy that gives Amazon Kendra access to the required resources. See Virtual private cloud (VPC) IAM role for the required policy.

IAM roles for database data sources

When you use a database as a data source, you provide Amazon Kendra with a role that has the permissions necessary for connecting to the database. These include:

• Permission to access the AWS Secrets Manager secret that contains the user name and password for the database site. For more information about the contents of the secret, see Using a database data source.

• Permission to use the AWS KMS customer master key (CMK) to decrypt the user name and password secret stored by Secrets Manager.

• Permission to use the BatchPutDocument and BatchDeleteDocument operations to update the index.

• Permission to access the Amazon S3 bucket that contains the SSL certificate used to communicate with the database site.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "secretsmanager:GetSecretValue"
            ],
            "Resource": [
                "arn:aws:secretsmanager:region:account ID:secret:secret ID"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": [
                "arn:aws:kms:region:account ID:key/key ID"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "kendra:BatchPutDocument",
                "kendra:BatchDeleteDocument"
            ],
            "Resource": [
                "arn:aws:kendra:region:account ID:index/index ID"
            "Condition": {
                "StringLike": {
                    "kms:ViaService": [
                        "kendra.amazonaws.com"
                    ]
                }
            }
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetObject"
            ],
            "Resource": [
                "arn:aws:s3:::bucket name/*"
            ]
        }
    ]
}

There are two optional policies that you might use with a database data source.

If you have encrypted the Amazon S3 bucket that contains the SSL certificate used to communicate with the database, provide a policy to give Amazon Kendra access to the key.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": [
                "arn:aws:kms:region:account ID:key/key ID"
            ]
        }
    ]
}

If you are using a VPC, provide a policy that gives Amazon Kendra access to the required resources. See Virtual private cloud (VPC) IAM role for the required policy.

IAM roles for Google Workspace Drive data sources

When you use a Google Workspace Drive data source, you provide Amazon Kendra with a role that has the permissions necessary for connecting to the site. These include:

• Permission to get and decrypt the AWS Secrets Manager secret that contains the client account email, admin account email, and private key necessary to connect to the Google Drive site. For more information about the contents of the secret, see Using a Google Workspace Drive data source.

• Permission to use the BatchPutDocument and BatchDeleteDocument operations.

The following IAM policy provides the necessary permissions:

{
  "Version": "2012-10-17",
  "Statement": [
  {
    "Effect": "Allow",
    "Action": [
      "secretsmanager:GetSecretValue"
    ],
    "Resource": [
      "arn:aws:secretsmanager:region:account ID:secret:secret ID"
    ]
  },
  {
    "Effect": "Allow",
    "Action": [
      "kms:Decrypt"
    ],
    "Resource": [
      "arn:aws:kms:region:account ID:key/key ID"
    ],
    "Condition": {
      "StringLike": {
        "kms:ViaService": [
          "secretsmanager.*.amazonaws.com"
        ]
      }
    }
  },
  {
    "Effect": "Allow",
    "Action": [
      "kendra:BatchPutDocument",
      "kendra:BatchDeleteDocument"
    ],
    "Resource": "arn:aws:kendra:region:account ID:index/index ID"
  }]
}

IAM roles for Microsoft OneDrive data sources

When you use a Microsoft OneDrive data source, you provide Amazon Kendra with a role that has the permissions necessary for connecting to the site. These include:

• Permission to get and decrypt the AWS Secrets Manager secret that contains the application ID and secret key necessary to connect to the OneDrive site. For more information about the contents of the secret, see Using a Microsoft OneDrive data source.

• Permission to use the BatchPutDocument and BatchDeleteDocument operations.

The following IAM policy provides the necessary permissions:

{
  "Version": "2012-10-17",
  "Statement": [
  {
    "Effect": "Allow",
    "Action": [
      "secretsmanager:GetSecretValue"
    ],
    "Resource": [
      "arn:aws:secretsmanager:region:account ID:secret:secret ID"
    ]
  },
  {
    "Effect": "Allow",
    "Action": [
      "kms:Decrypt"
    ],
    "Resource": [
      "arn:aws:kms:region:account ID:key/key ID"
    ],
    "Condition": {
      "StringLike": {
        "kms:ViaService": [
          "secretsmanager.*.amazonaws.com"
        ]
      }
    }
  },
  {
    "Effect": "Allow",
    "Action": [
      "kendra:BatchPutDocument",
      "kendra:BatchDeleteDocument"
    ],
    "Resource": "arn:aws:kendra:region:account ID:index/index ID"
  }]
}

If you are storing the list of users to index in an S3 bucket, you must also provide permission to use the S3 GetObject operation. The following IAM policy provides the necessary permissions:

{
  "Version": "2012-10-17",
  "Statement": [
  {
    "Effect": "Allow",
    "Action": [
      "secretsmanager:GetSecretValue"
    ],
    "Resource": [
      "arn:aws:secretsmanager:region:account ID:secret:secret ID"
    ]
  },
  {
    "Action": [
      "s3:GetObject"
    ],
    "Resource": [
      "arn:aws:s3:::input_bucket_name/*"
    ],
    "Effect": "Allow"
  },
  {
    "Effect": "Allow",
    "Action": [
      "kms:Decrypt"
    ],
    "Resource": [
      "arn:aws:kms:region:account ID:key/[[key IDs]]"
    ],
    "Condition": {
      "StringLike": {
        "kms:ViaService": [
          "secretsmanager.*.amazonaws.com",
          "s3.*.amazonaws.com"
        ]
      }
    }
  },
  {
    "Effect": "Allow",
    "Action": [
      "kendra:BatchPutDocument",
      "kendra:BatchDeleteDocument"
    ],
    "Resource": "arn:aws:kendra:region:account ID:index/index ID"
  }]
}

IAM role for Salesforce data sources

When you use a Salesforce as a data source, you provide a role with the following policies:

• Permission to access the AWS Secrets Manager secret that contains the user name and password for the Salesforce site. For more information about the contents of the secret, see Using a Salesforce data source.

• Permission to use the AWS KMS customer master key (CMK) to decrypt the user name and password secret stored by Secrets Manager.

• Permission to use the BatchPutDocument and BatchDeleteDocument operations to update the index.

{
  "Version": "2012-10-17",
  "Statement": [
  {
    "Effect": "Allow",
    "Action": [
      "secretsmanager:GetSecretValue"
    ],
    "Resource": [
      "arn:aws:secretsmanager:region:account ID:secret:secret ID"
    ]
  },
  {
    "Effect": "Allow",
    "Action": [
      "kms:Decrypt"
    ],
    "Resource": [
      "arn:aws:kms:region:account ID:key/key ID"
    ],
    "Condition": {
      "StringLike": {
        "kms:ViaService": [
          "secretsmanager.*.amazonaws.com"
        ]
      }
    }
  },
  {
    "Effect": "Allow",
    "Action": [
      "kendra:BatchPutDocument",
      "kendra:BatchDeleteDocument"
    ],
    "Resource": "arn:aws:kendra:region:account ID:index/index ID"
  }]
}

IAM role for ServiceNow data sources

When you use a ServiceNow as a data source, you provide a role with the following policies:

• Permission to access the AWS Secrets Manager secret that contains the user name and password for the ServiceNow site. For more information about the contents of the secret, see Using a ServiceNow data source.

• Permission to use the AWS KMS customer master key (CMK) to decrypt the user name and password secret stored by Secrets Manager.

• Permission to use the BatchPutDocument and BatchDeleteDocument operations to update the index.

{
  "Version": "2012-10-17",
  "Statement": [
  {
    "Effect": "Allow",
    "Action": [
      "secretsmanager:GetSecretValue"
    ],
    "Resource": [
      "arn:aws:secretsmanager:region:account ID:secret:secret ID"
    ]
  },
  {
    "Effect": "Allow",
    "Action": [
      "kms:Decrypt"
    ],
    "Resource": [
      "arn:aws:kms:region:account ID:key/key ID"
    ],
    "Condition": {
      "StringLike": {
        "kms:ViaService": [
          "secretsmanager.*.amazonaws.com"
        ]
      }
    }
  },
  {
    "Effect": "Allow",
    "Action": [
      "kendra:BatchPutDocument",
      "kendra:BatchDeleteDocument"
    ],
    "Resource": "arn:aws:kendra:region:account ID:index/index ID"
  }]
}

IAM roles for Microsoft SharePoint data sources

For a Microsoft SharePoint data source, you provide a role with the following policies.

• Permission to access the AWS Secrets Manager secret that contains the user name and password for the SharePoint site. For more information about the contents of the secret, see Using a Microsoft SharePoint data source.

• Permission to use the AWS KMS customer master key (CMK) to decrypt the user name and password secret stored by Secrets Manager.

• Permission to use the BatchPutDocument and BatchDeleteDocument operations to update the index.

• Permission to access the Amazon S3 bucket that contains the SSL certificate used to communicate with the SharePoint site.

You must also attach a trust policy that enables Amazon Kendra to assume the role.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "secretsmanager:GetSecretValue"
            ],
            "Resource": [
                "arn:aws:secretsmanager:region:account ID:secret:secret ID"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": [
                "arn:aws:kms:region:account ID:key/key ID"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "kendra:BatchPutDocument",
                "kendra:BatchDeleteDocument"
            ],
            "Resource": [
                "arn:aws:kendra:region:account ID:index/index ID"
            ],
            "Condition": {
                "StringLike": {
                    "kms:ViaService": [
                        "kendra.amazonaws.com"
                    ]
                }
            }
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetObject"
            ],
            "Resource": [
                "arn:aws:s3:::bucket name/*"
            ]
        }
    ]
}

You must apply the following trust policy to the role.

{
    "Version": "2012-10-17",
    "Statement": {
        "Effect": "Allow",
        "Principal": {
            "Service": "kendra.amazonaws.com"
        },
        "Action": "sts:AssumeRole"
    }
}

If you have encrypted the Amazon S3 bucket that contains the SSL certificate used to communicate with the Sharepoint site, provide a policy to give Amazon Kendra access to the key.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": [
                "arn:aws:kms:region:account ID:key/key ID"
            ]
        }
    ]
}

Virtual private cloud (VPC) IAM role

If you use a virtual private cloud (VPC) to connect to your data source, you must provide the following permissions.

{
    "Version": "2012-10-17",
    "Statement": [
  {
    "Effect": "Allow",
    "Action":[
      "ec2:CreateNetworkInterface",
      "ec2:DescribeNetworkInterfaces",
      "ec2:DeleteNetworkInterface"
    ],
    "Resource": "*"        
  },
  {
    "Effect": "Allow",
    "Action": [
      "ec2:CreateNetworkInterfacePermission"
    ],
    "Resource": "*",
    "Condition": {
      "StringEquals": {
        "ec2:AuthorizedService": "kendra.amazonaws.com"
      },
      "ArnEquals": {
        "ec2:Subnet": [
          "arn:aws:ec2:region:account ID:subnet/subnet IDs"
        ]
      }
    }
  },
  {
    "Effect": "Allow",
    "Action": [
      "ec2:DescribeSubnets"
    ],
    "Resource": "*"
  }    ]
}

IAM roles for web crawler data sources

When you use the Amazon Kendra web crawler, you provide a role with the following policies:

• Permission to access the AWS Secrets Manager secret that contains the user name and password to connect to websites or a web proxy server backed by basic authentication. For more information about the contents of the secret, see Using a web crawler data source.

• Permission to use the AWS KMS customer master key (CMK) to decrypt the user name and password secret stored by Secrets Manager.

• Permission to use the BatchPutDocument and BatchDeleteDocument operations to update the index.

{
  "Version": "2012-10-17",
  "Statement": [
  {
    "Effect": "Allow",
    "Action": [
      "secretsmanager:GetSecretValue"
    ],
    "Resource": [
      "arn:aws:secretsmanager:region:account ID:secret:secret ID"
    ]
  },
  {
    "Effect": "Allow",
    "Action": [
      "kms:Decrypt"
    ],
    "Resource": [
      "arn:aws:kms:region:account ID:key/key ID"
    ],
    "Condition": {
      "StringLike": {
        "kms:ViaService": [
          "secretsmanager.*.amazonaws.com"
        ]
      }
    }
  },
  {
    "Effect": "Allow",
    "Action": [
      "kendra:BatchPutDocument",
      "kendra:BatchDeleteDocument"
    ],
    "Resource": "arn:aws:kendra:region:account ID:index/index ID"
  }]
}

IAM roles for Amazon WorkDocs data sources

When you use Amazon WorkDocs, you provide a role with the following policies

• Permission to verify the directory ID (organization ID) that corresponds with your Amazon WorkDocs site repository.

• Permission to get the domain name of your Active Directory that contains your Amazon WorkDocs site directory.

• Permission to call the required public API actions for the Amazon WorkDocs connector.

• Permission to call the BatchPutDocument and BatchDeleteDocument actions to update the index.

A required role policy to enable Amazon Kendra to get the domain name of your Active Directory that contains your Amazon WorkDocs site directory.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowsKendraToGetDomainNameOfActiveDirectory",
            "Effect": "Allow",
            "Action": "ds:DescribeDirectories",
            "Resource": "*"
        }
    ]
}

A required trust policy to enable Amazon Kendra to assume a role.

{
    "Version": "2012-10-17",
    "Statement": {
        "Sid": "AllowsKendraToAssumeTheAttachedRole",
        "Effect": "Allow",
        "Principal": { "Service": "kendra.amazonaws.com" },
       "Action": "sts:AssumeRole"
    }
}   

A required role policy to enable Amazon Kendra to call the required public API actions for the Amazon WorkDocs connector.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowsKendraToCallRequiredWorkDocsAPIs",
            "Effect": "Allow",
            "Action": [
                "workdocs:GetDocumentPath",
                "workdocs:GetGroup",
                "workdocs:GetDocument",
                "workdocs:DownloadDocumentVersions"
                "workdocs:DescribeUsers",
                "workdocs:DescribeFolderContents",
                "workdocs:DescribeActivities",
                "workdocs:DescribeComments",
                "workdocs:GetFolder",
                "workdocs:DescribeResourcePermissions",
                "workdocs:GetFolderPath",
                "workdocs:DescribeInstances"
            ],
            "Resource": "*"
        }
    ]
}

A required policy to call the BatchPutDocument and BatchDeleteDocument actions to update the index.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowsKendraToCallBatchPutDeleteAPIs",
            "Effect": "Allow",
            "Action": [
                "kendra:BatchPutDocument",
                "kendra:BatchDeleteDocument"
            ],
            "Resource": [
                 "arn:aws:kendra:{{region}}:{{account_id}}:index/${IndexId}"
            ]
        }
     ]
}

IAM roles for frequently asked questions

When you use the CreateFaq operation to load questions and answers into an index, you must provide Amazon Kendra with an IAM role with access to the Amazon S3 bucket that contains the source files. If the source files are encrypted, you must provide permission to use the AWS KMS customer master key (CMK) to decrypt the files.

A required role policy to enable Amazon Kendra to access an Amazon S3 bucket.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetObject"
            ],
            "Resource": [
                "arn:aws:s3:::bucket name/*"
            ]
        }
    ]
}

A required trust policy to enable Amazon Kendra to assume a role.

{
    "Version": "2012-10-17",
    "Statement": {
        "Sid": "AllowKendraToAssumeAttachedRole",
        "Effect": "Allow",
        "Principal": {
            "Service": "kendra.amazonaws.com"
        },
        "Action": "sts:AssumeRole"
    }
}

An optional role policy to enable Amazon Kendra to use an AWS KMS customer master key (CMK) to decrypt files in an Amazon S3 bucket.

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": [
                "arn:aws:kms:region:account ID:key/key ID"
            ],
            "Condition": {
                "StringLike": {
                    "kms:ViaService": [
                        "kendra.amazonaws.com"
                    ]
                }
            }
        }
    ]
}

IAM roles for query suggestions

When you use an Amazon S3 file as a query suggestions block list, you supply a role that has permission to access the S3 file and the Amazon S3 bucket. If the block list text file (the S3 file) in the Amazon S3 bucket is encrypted, you must provide permission to use the AWS KMS customer master key (CMK) to decrypt the documents.

A required role policy to enable Amazon Kendra to use the S3 file as your query suggestions block list.

{
    "Version": "2012-10-17",
    "Statement": [
        {"Effect": "Allow",
            "Action": [
                "s3:GetObject"
            ],
            "Resource": [
                "arn:aws:s3:::bucket name/*"
            ]
        }
    ]
}

A required trust policy to enable Amazon Kendra to assume a role.

{
    "Version": "2012-10-17",
    "Statement": {
        "Sid": "AllowKendraToAssumeAttachedRole",
        "Effect": "Allow",
        "Principal": {
            "Service": "kendra.amazonaws.com"
        },
        "Action": "sts:AssumeRole"
    }
}

An optional role policy to enable Amazon Kendra to use an AWS KMS customer master key (CMK) to decrypt documents in an Amazon S3 bucket.

{
    "Version": "2012-10-17",
    "Statement": [
        {"Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": [
                "arn:aws:kms:region:account ID:key/key ID"
            ]
        }
    ]
}

IAM roles for principal mapping of users and groups

When you use the PutPrincipalMapping operation to map users to their groups for filtering search results by user context, you need to provide a list of users or sub groups that belong to a group. If your list is more than 1000 users or sub groups for a group, you need to supply a role that has permission to access the Amazon S3 file of your list and the Amazon S3 bucket. If the text file (the S3 file) of the list in the Amazon S3 bucket is encrypted, you must provide permission to use the AWS KMS customer master key (CMK) to decrypt the documents.

A required role policy to enable Amazon Kendra to use the Amazon S3 file as your list of users and sub groups that belong to a group.

{
    "Version": "2012-10-17",
    "Statement": [
        {"Effect": "Allow",
            "Action": [
                "s3:GetObject"
            ],
            "Resource": [
                "arn:aws:s3:::bucket name/*"
            ]
        }
    ]
}

A required trust policy to enable Amazon Kendra to assume a role.

{
    "Version": "2012-10-17",
    "Statement": {
        "Sid": "AllowKendraToAssumeAttachedRole",
        "Effect": "Allow",
        "Principal": {
            "Service": "kendra.amazonaws.com"
        },
        "Action": "sts:AssumeRole"
    }
}

An optional role policy to enable Amazon Kendra to use an AWS KMS customer master key (CMK) to decrypt documents in an Amazon S3 bucket.

{
    "Version": "2012-10-17",
    "Statement": [
        {"Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": [
                "arn:aws:kms:region:account ID:key/key ID"
            ]
        }
    ]
}