# CloudWatch 金丝雀的必需角色和权限
<a name="CloudWatch_Synthetics_Canaries_Roles"></a>

创建和管理金丝雀的用户以及金丝雀本身都必须拥有某些权限。

## 用于 CloudWatch Synthetics 的 Amazon 托管式策略
<a name="CloudWatch_Synthetics_IAMManagedPolicies"></a>

要向用户、组和角色添加权限，与自己编写策略相比，使用 Amazon 托管式策略更简单。创建仅为团队提供所需权限的 IAM 客户管理型策略需要时间和专业知识。要快速入门，您可以使用我们的 Amazon 托管式策略。这些策略涵盖常见使用案例，可在您的 Amazon 账户中使用。有关 Amazon 托管式策略的更多信息，请参阅 IAM 用户指南中的 [Amazon 托管式策略](https://docs.amazonaws.cn/IAM/latest/UserGuide/access_policies_managed-vs-inline.html#aws-managed-policies) Amazon 托管式策略。

Amazon 服务负责维护和更新 Amazon 托管式策略。您无法更改 Amazon 托管式策略中的权限。服务会偶尔更改 Amazon 托管式策略中的权限。此类更新会影响附加策略的所有身份（用户、组和角色）。

### CloudWatch Synthetics 对 Amazon 托管式策略的更新
<a name="CloudWatch_Synthetics_IAMManagedPolicies_Updates"></a>

查看有关 CloudWatch Synthetics 的 Amazon 托管式策略更新的详细信息（从该服务开始跟踪这些更改开始）。有关此页面更改的自动提示，请订阅 CloudWatch 文档历史记录页面上的 RSS 源。


| 更改 | 描述 | 日期 | 
| --- | --- | --- | 
|  删除了 **CloudWatchSyntheticsFullAccess** 中的冗余操作  |  CloudWatch Synthetics 删除了 **CloudWatchSyntheticsFullAccess** 策略中的 `s3:PutBucketEncryption` 和 ` lambda:GetLayerVersionByArn` 操作，因为这些操作相较于策略中的其他权限是多余的。删除的操作不提供任何权限，策略授予的权限也未发生任何净更改。  | 2021 年 3 月 12 日 | 
|  CloudWatch Synthetics 开始跟踪变更  |  CloudWatch Synthetics 开始跟踪其 Amazon 托管式策略的更改。  | 2021 年 3 月 10 日 | 

 **CloudWatchSyntheticsFullAccess** 

以下是 `CloudWatchSyntheticsFullAccess` 策略的内容：

------
#### [ JSON ]

****  

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [{
            "Effect": "Allow",
            "Action": [
                "synthetics:*"
            ],
            "Resource": "*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:CreateBucket",
                "s3:PutEncryptionConfiguration"
            ],
            "Resource": [
                "arn:aws:s3:::cw-syn-results-*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "iam:ListRoles",
                "s3:ListAllMyBuckets",
                "xray:GetTraceSummaries",
                "xray:BatchGetTraces",
                "apigateway:GET"
            ],
            "Resource": "*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetBucketLocation"
            ],
            "Resource": "arn:aws:s3:::*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetObject",
                "s3:ListBucket"
            ],
            "Resource": "arn:aws:s3:::cw-syn-*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:GetObjectVersion"
            ],
            "Resource": "arn:aws:s3:::aws-synthetics-library-*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "iam:PassRole"
            ],
            "Resource": [
                "arn:aws:iam::*:role/service-role/CloudWatchSyntheticsRole*"
            ],
            "Condition": {
                "StringEquals": {
                    "iam:PassedToService": [
                        "lambda.amazonaws.com",
                        "synthetics.amazonaws.com"
                    ]
                }
            }
        },
        {
            "Effect": "Allow",
            "Action": [
                "iam:GetRole",
                "iam:ListAttachedRolePolicies"
            ],
            "Resource": [
                "arn:aws:iam::*:role/service-role/CloudWatchSyntheticsRole*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "cloudwatch:GetMetricData",
                "cloudwatch:GetMetricStatistics"
            ],
            "Resource": "*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "cloudwatch:PutMetricAlarm",
                "cloudwatch:DeleteAlarms"
            ],
            "Resource": [
                "arn:aws:cloudwatch:*:*:alarm:Synthetics-*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "cloudwatch:DescribeAlarms"
            ],
            "Resource": [
                "arn:aws:cloudwatch:*:*:alarm:*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "logs:GetLogRecord",
                "logs:DescribeLogStreams",
                "logs:StartQuery",
                "logs:GetLogEvents",
                "logs:FilterLogEvents",
                "logs:GetLogGroupFields"
            ],
            "Resource": [
                "arn:aws:logs:*:*:log-group:/aws/lambda/cwsyn-*"
            ],
            "Condition": {
                "StringEquals": {
                    "aws:ResourceAccount": "${aws:PrincipalAccount}"
                }
            }
        },
        {
            "Effect": "Allow",
            "Action": [
                "lambda:CreateFunction",
                "lambda:AddPermission",
                "lambda:PublishVersion",
                "lambda:UpdateFunctionCode",
                "lambda:UpdateFunctionConfiguration",
                "lambda:GetFunctionConfiguration",
                "lambda:GetFunction",
                "lambda:DeleteFunction",
                "lambda:ListTags",
                "lambda:TagResource",
                "lambda:UntagResource"
            ],
            "Resource": [
                "arn:aws:lambda:*:*:function:cwsyn-*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "lambda:GetLayerVersion",
                "lambda:PublishLayerVersion",
                "lambda:DeleteLayerVersion"
            ],
            "Resource": [
                "arn:aws:lambda:*:*:layer:cwsyn-*",
                "arn:aws:lambda:*:*:layer:Synthetics:*",
                "arn:aws:lambda:*:*:layer:Synthetics_Selenium:*",
                "arn:aws:lambda:*:*:layer:AWS-CW-Synthetics*:*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "ec2:DescribeVpcs",
                "ec2:DescribeSubnets",
                "ec2:DescribeSecurityGroups"
            ],
            "Resource": [
                "*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "sns:ListTopics"
            ],
            "Resource": [
                "*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "sns:CreateTopic",
                "sns:Subscribe",
                "sns:ListSubscriptionsByTopic"
            ],
            "Resource": [
                "arn:*:sns:*:*:Synthetics-*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "kms:ListAliases"
            ],
            "Resource": "*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "kms:DescribeKey"
            ],
            "Resource": "arn:aws:kms:*:*:key/*"
        },
        {
            "Effect": "Allow",
            "Action": [
                "kms:Decrypt"
            ],
            "Resource": "arn:aws:kms:*:*:key/*",
            "Condition": {
                "StringLike": {
                    "kms:ViaService": [
                        "s3.*.amazonaws.com"
                    ]
                }
            }
        }
    ]
}
```

------

 **CloudWatchSyntheticsReadOnlyAccess** 

以下是 `CloudWatchSyntheticsReadOnlyAccess` 策略的内容：

------
#### [ JSON ]

****  

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "synthetics:Describe*",
                "synthetics:Get*",
                "synthetics:List*"
            ],
            "Resource": "*"
        }
    ]
}
```

------