为 Performance Insights 配置访问策略

以下示例显示了如何将语句添加到 KMS 密钥策略。这些语句可以访问 Performance Insights。您可能需要更改一些限制，这取决于您使用 KMS 密钥的方式。在将语句添加到您的策略之前，请删除所有注释。

{
"Version" : "2012-10-17",
 "Id" : "your-policy",
 "Statement" : [ {
    //This represents a statement that currently exists in your policy.
 }
 ....,
 //Starting here, add new statement to your policy for Performance Insights.
 //We recommend that you add one new statement for every RDS instance
{
    "Sid" : "Allow viewing RDS Performance Insights",
    "Effect": "Allow",
    "Principal": {
        "AWS": [
            //One or more principals allowed to access Performance Insights
            "arn:aws:iam::444455556666:role/Role1"
        ]
    },
    "Action": [
        "kms:Decrypt",
        "kms:GenerateDataKey"
    ],
    "Resource": "*",
    "Condition" : {
        "StringEquals" : {
            //Restrict access to only RDS APIs (including Performance Insights).
            //Replace region with your Amazon Region. 
            //For example, specify us-west-2.
            "kms:ViaService" : "rds.region.amazonaws.com"
        },
        "ForAnyValue:StringEquals": {
            //Restrict access to only data encrypted by Performance Insights.
            "kms:EncryptionContext:aws:pi:service": "rds",
            "kms:EncryptionContext:service": "pi",
            
            //Restrict access to a specific RDS instance.
            //The value is a DbiResourceId.
           "kms:EncryptionContext:aws:rds:db-id": "db-AAAAABBBBBCCCCDDDDDEEEEE"
        }
    }
}

以下示例请求 db.user 组的敏感数据：

POST / HTTP/1.1
Host: <Hostname>
Accept-Encoding: identity
X-Amz-Target: PerformanceInsightsv20180227.GetResourceMetrics
Content-Type: application/x-amz-json-1.1
User-Agent: <UserAgentString>
X-Amz-Date: <Date> 
Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=<Headers>, Signature=<Signature>
Content-Length: <PayloadSizeBytes>
{
  "ServiceType": "RDS",
  "Identifier": "db-ABC1DEFGHIJKL2MNOPQRSTUV3W",
  "MetricQueries": [
    {
      "Metric": "db.load.avg",
      "GroupBy": {
        "Group": "db.user",
        "Limit": 2
      }
    }
  ],
  "StartTime": 1693872000,
  "EndTime": 1694044800,
  "PeriodInSeconds": 86400
}
				

以下示例请求 db.load.avg 指标的非敏感数据：

POST / HTTP/1.1
Host: <Hostname>
Accept-Encoding: identity
X-Amz-Target: PerformanceInsightsv20180227.GetResourceMetrics
Content-Type: application/x-amz-json-1.1
User-Agent: <UserAgentString>
X-Amz-Date: <Date> 
Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=<Headers>, Signature=<Signature>
Content-Length: <PayloadSizeBytes>
{
    "ServiceType": "RDS",
    "Identifier": "db-ABC1DEFGHIJKL2MNOPQRSTUV3W",
    "MetricQueries": [
        {
            "Metric": "db.load.avg"
        }
    ],
    "StartTime": 1693872000,
    "EndTime": 1694044800,
    "PeriodInSeconds": 86400
}
				

以下示例提供了对 GetResourceMetrics 和 DescribeDimensionKeys 操作的指定维度的访问权限。

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "AllowToDiscoverDimensions",
            "Effect": "Allow",
            "Action": [
                "pi:ListAvailableResourceDimensions"
            ],
            "Resource": [
                "arn:aws:pi:us-east-1:123456789012:metrics/rds/db-ABC1DEFGHIJKL2MNOPQRSTUV3W"
            ]
        },
        {
            "Sid": "SingleAllow",
            "Effect": "Allow",
            "Action": [
                "pi:GetResourceMetrics",
                "pi:DescribeDimensionKeys"
            ],
            "Resource": [
                "arn:aws:pi:us-east-1:123456789012:metrics/rds/db-ABC1DEFGHIJKL2MNOPQRSTUV3W"
            ],
            "Condition": {
                "ForAllValues:StringEquals": {
                    // only these dimensions are allowed. Dimensions not included in
                    // a policy with "Allow" effect will be denied
                    "pi:Dimensions": [
                        "db.sql_tokenized.id",
                        "db.sql_tokenized.statement"
                    ]
                }
            }
        }
        

    ]
}
		

以下是对所请求维度的响应：

	// ListAvailableResourceDimensions API
// Request
{
    "ServiceType": "RDS",
    "Identifier": "db-ABC1DEFGHIJKL2MNOPQRSTUV3W",
    "Metrics": [ "db.load" ],
    "AuthorizedActions": ["DescribeDimensionKeys"]
}

// Response
{    
    "MetricDimensions": [ {
        "Metric": "db.load",
        "Groups": [
            {
                "Group": "db.sql_tokenized",
                "Dimensions": [
                    { "Identifier": "db.sql_tokenized.id" },
                  //  { "Identifier": "db.sql_tokenized.db_id" }, // not included because not allows in the IAM Policy
                    { "Identifier": "db.sql_tokenized.statement" }
                ] 
            }
            
        ] }
    ]
}

以下示例为维度指定一个允许访问和两个拒绝访问权限。

{
    "Version": "2012-10-17",
    "Statement": [
          {
            "Sid": "AllowToDiscoverDimensions",
            "Effect": "Allow",
            "Action": [
                "pi:ListAvailableResourceDimensions"
            ],
            "Resource": [
                "arn:aws:pi:us-east-1:123456789012:metrics/rds/db-ABC1DEFGHIJKL2MNOPQRSTUV3W"
            ]
          },

          {
            "Sid": "O01AllowAllWithoutSpecifyingDimensions",
            "Effect": "Allow",
            "Action": [
                "pi:GetResourceMetrics",
                "pi:DescribeDimensionKeys"
            ],
            "Resource": [
                "arn:aws:pi:us-east-1:123456789012:metrics/rds/db-ABC1DEFGHIJKL2MNOPQRSTUV3W"
            ]
        },
        
        {
            "Sid": "O01DenyAppDimensionForAll",
            "Effect": "Deny",
            "Action": [
                "pi:GetResourceMetrics",
                "pi:DescribeDimensionKeys"
            ],
            "Resource": [
                "arn:aws:pi:us-east-1:123456789012:metrics/rds/db-ABC1DEFGHIJKL2MNOPQRSTUV3W"
            ],
            "Condition": {
                "ForAnyValue:StringEquals": {
                    "pi:Dimensions": [
                        "db.application.name"
                    ]
                }
            }
        },
        
        {
            "Sid": "O01DenySQLForGetResourceMetrics",
            "Effect": "Deny",
            "Action": [
                "pi:GetResourceMetrics"
            ],
            "Resource": [
                "arn:aws:pi:us-east-1:123456789012:metrics/rds/db-ABC1DEFGHIJKL2MNOPQRSTUV3W"
            ],
            "Condition": {
                "ForAnyValue:StringEquals": {
                    "pi:Dimensions": [
                        "db.sql_tokenized.statement"
                    ]
                }
            }
        }
    ]
}
		

以下是对请求维度的响应：

			// ListAvailableResourceDimensions API
// Request
{
    "ServiceType": "RDS",
    "Identifier": "db-ABC1DEFGHIJKL2MNOPQRSTUV3W",
    "Metrics": [ "db.load" ],
    "AuthorizedActions": ["GetResourceMetrics"]
}

// Response
{    
    "MetricDimensions": [ {
        "Metric": "db.load",
        "Groups": [
            {
                "Group": "db.application",
                "Dimensions": [
                
                  // removed from response because denied by the IAM Policy
                  //  { "Identifier": "db.application.name" }  
                ]
            },
            {
                "Group": "db.sql_tokenized",
                "Dimensions": [
                    { "Identifier": "db.sql_tokenized.id" },
                    { "Identifier": "db.sql_tokenized.db_id" },
                    
                  // removed from response because denied by the IAM Policy
                  //  { "Identifier": "db.sql_tokenized.statement" }
                ] 
            },
            ...
        ] }
    ]
}

// ListAvailableResourceDimensions API
// Request
{
    "ServiceType": "RDS",
    "Identifier": "db-ABC1DEFGHIJKL2MNOPQRSTUV3W",
    "Metrics": [ "db.load" ],
    "AuthorizedActions": ["DescribeDimensionKeys"]
}

// Response
{    
    "MetricDimensions": [ {
        "Metric": "db.load",
        "Groups": [
            {
                "Group": "db.application",
                "Dimensions": [
                  // removed from response because denied by the IAM Policy
                  //  { "Identifier": "db.application.name" }  
                ]
            },
            {
                "Group": "db.sql_tokenized",
                "Dimensions": [
                    { "Identifier": "db.sql_tokenized.id" },
                    { "Identifier": "db.sql_tokenized.db_id" },
                    
                  // allowed for DescribeDimensionKeys because our IAM Policy 
                  // denies it only for GetResourceMetrics
                    { "Identifier": "db.sql_tokenized.statement" }
                ] 
            },
            ...
        ] }
    ]
}