Question

我试图通过Cloudformation模板启动RDS堆栈。我想在我的数据库实例上启用增强监控。为此，必须在资源上指定MonitoringRoleArn属性。

据我了解，此ARN应指向已获得AmazonRDSEnhancedMonitoringRole策略的IAM服务角色，如下所述：

http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_Monitoring.OS.html

我还希望通过Cloudformation创建该角色。然而，对于我的生活，我找不到如何在Cloudformation模板中执行此操作的示例。事实证明，Cloudformer工具不会分析IAM资源。

有人这样做过吗？你能分享一个例子吗？

Answer 1

在YAML：

Role:
  Type: 'AWS::IAM::Role'
  Properties:
    ManagedPolicyArns:
    - 'arn:aws:iam::aws:policy/service-role/AmazonRDSEnhancedMonitoringRole'
    AssumeRolePolicyDocument:
      Version: '2008-10-17'
      Statement:
      - Effect: Allow
        Principal:
          Service: 'rds.amazonaws.com'
        Action: 'sts:AssumeRole'

然后，您需要在RDS实例的MonitoringRoleArn属性中引用该角色，如下所示：

!GetAtt ["Role", "Arn"]

如果你需要JSON中的例子，请告诉我。

Answer 2

代码几乎没有变化：

    "EMRole": {
        "Type": "AWS::IAM::Role",
        "Properties": {
            "ManagedPolicyArns": [
                "arn:aws:iam::aws:policy/service-role/AmazonRDSEnhancedMonitoringRole"
            ],
            "AssumeRolePolicyDocument": {
                "Version": "2008-10-17",
                "Statement": [
                    {
                        "Effect": "Allow",
                        "Principal": {
                            "Service": "monitoring.rds.amazonaws.com"
                        },
                        "Action": "sts:AssumeRole"
                    }
                ]
            },
            "RoleName": "rds-monitoring-role"
        }
    }

更改：“服务”：“ monitoring.rds.amazonaws.com”

命名为"MonitoringRoleArn": {"Fn::GetAtt" : [ "EMRole", "Arn" ] },

Answer 3

就像提到的 avisheks 一样，发生了变化。
hellomichibye 中的示例不再起作用。这是我在YAML中的代码（带有可配置的参数）：

Parameters:
  EnableEnhancedMonitoring:
    Description: 'Provide metrics in real time for the operating system (OS) that your DB instance runs on.'
    Type: String
    AllowedValues: [true, false]
    Default: false

Conditions:
  HasEnhancedMonitoring: !Equals [ !Ref EnableEnhancedMonitoring, 'true' ]

Resources:
  EnhancedMonitoringRole:
    Condition: HasEnhancedMonitoring
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
        - Sid: ''
          Effect: Allow
          Principal:
            Service: monitoring.rds.amazonaws.com
          Action: sts:AssumeRole
      ManagedPolicyArns:
      - arn:aws:iam::aws:policy/service-role/AmazonRDSEnhancedMonitoringRole
      Path: "/"

  DBInstance:
    Type: AWS::RDS::DBInstance
    Properties:
      ...
      MonitoringInterval: !If [HasEnhancedMonitoring, 60, 0]
      MonitoringRoleArn: !If [HasEnhancedMonitoring, !GetAtt ['EnhancedMonitoringRole', 'Arn'], !Ref 'AWS::NoValue']
      ...

Answer 4

谢谢，上面的回答很有帮助，因此，我能够用 Terraform 完成。考虑以下代码可能对某人有帮助。

resource "aws_iam_role" "rds-enhanced-monitoring-role" {
  name                = "rds-enhanced-monitoring-role"
  assume_role_policy  = "${file("enhanced-rds-monitoring-policy.json")}"
  description         = "RDS enhanced monitoring role"
  tags = {
      Name            = "rds-enhanced-monitoring-role"
  }
}

resource "aws_iam_role_policy_attachment" "rds-enhanced-monitoring-role-policy-attachment" {
  policy_arn          = "${data.aws_iam_policy.iam-rds-enhanced-monitoring-access-policy.arn}"
  role                = "${aws_iam_role.rds-enhanced-monitoring-role.name}" 
}

data "aws_iam_policy" "iam-rds-enhanced-monitoring-access-policy" {
  arn = "arn:aws:iam::aws:policy/service-role/AmazonRDSEnhancedMonitoringRole"
}

enhanced-rds-monitoring-policy.json

{
"Version": "2012-10-17",
"Statement": [
   {
        "Action": "sts:AssumeRole",
        "Principal": {
            "Service": "monitoring.rds.amazonaws.com"
        },
        "Effect": "Allow",
        "Sid": ""
    }
]
}

AmazonRDSEnhancedMonitoringRole的Cloudformation模板

4 个答案: