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# VPC 网络的服务相关角色
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HealthOmics 使用 IAM 服务相关角色在您的 VPC 中创建和管理弹性网络接口 (ENIs)。此角色是在您创建第一个 VPC 配置时自动创建的。

## 服务相关角色详情
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+ **角色名称**：`AWSServiceRoleForHealthOmics`
+ **托管策略**：`AWSHealthOmicsServiceLinkedRolePolicy`
+ **服务负责人**：`omics.amazonaws.com`

## 已授予权限
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服务相关角色授予 HealthOmics 以下 Amazon EC2 权限，以管理您的 VPC 中的网络接口：

```
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Sid": "AllowEC2DescribeActions",
      "Effect": "Allow",
      "Action": [
        "ec2:DescribeSubnets",
        "ec2:DescribeTags",
        "ec2:DescribeSecurityGroups",
        "ec2:DescribeSecurityGroupRules",
        "ec2:DescribeVpcs",
        "ec2:DescribeNetworkInterfaces",
        "ec2:DescribeAvailabilityZones"
      ],
      "Resource": "*"
    },
    {
      "Sid": "AllowVpcGetActions",
      "Effect": "Allow",
      "Action": [
        "ec2:GetSecurityGroupsForVpc"
      ],
      "Resource": "arn:aws:ec2:*:*:vpc/*"
    },
    {
      "Sid": "AllowCreateNetworkInterfaceWithTag",
      "Effect": "Allow",
      "Action": "ec2:CreateNetworkInterface",
      "Resource": "arn:aws:ec2:*:*:network-interface/*",
      "Condition": {
        "StringEquals": {
          "aws:RequestTag/Service": "HealthOmics"
        }
      }
    },
    {
      "Sid": "AllowCreateNetworkInterfaceSubnetSecurityGroup",
      "Effect": "Allow",
      "Action": "ec2:CreateNetworkInterface",
      "Resource": [
        "arn:aws:ec2:*:*:subnet/*",
        "arn:aws:ec2:*:*:security-group/*"
      ]
    },
    {
      "Sid": "AllowCreateTags",
      "Effect": "Allow",
      "Action": "ec2:CreateTags",
      "Resource": "arn:aws:ec2:*:*:network-interface/*",
      "Condition": {
        "StringEquals": {
          "ec2:CreateAction": "CreateNetworkInterface"
        }
      }
    },
    {
      "Sid": "AllowDeleteNetworkInterface",
      "Effect": "Allow",
      "Action": "ec2:DeleteNetworkInterface",
      "Resource": "arn:aws:ec2:*:*:network-interface/*",
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/Service": "HealthOmics"
        }
      }
    },
    {
      "Sid": "AllowAssignUnassignPrivateIpAddresses",
      "Effect": "Allow",
      "Action": [
        "ec2:AssignPrivateIpAddresses",
        "ec2:UnassignPrivateIpAddresses"
      ],
      "Resource": "arn:aws:ec2:*:*:network-interface/*",
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/Service": "HealthOmics"
        }
      }
    }
  ]
}
```

## 创建服务关联角色
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当您使用 `CreateConfiguration` API 创建第一个 VPC 配置时，服务相关角色会自动创建。您必须拥有以下 IAM 权限：

```
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": "iam:CreateServiceLinkedRole",
      "Resource": "arn:aws:iam::*:role/aws-service-role/omics.amazonaws.com/AWSServiceRoleForHealthOmics",
      "Condition": {
        "StringEquals": {
          "iam:AWSServiceName": "omics.amazonaws.com"
        }
      }
    }
  ]
}
```

## 删除 服务相关角色
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只有在删除账户中的所有 VPC 配置后，才能删除服务相关角色。要删除角色，请执行以下操作：

```
aws iam delete-service-linked-role \
  --role-name AWSServiceRoleForHealthOmics
```

如果您有活动的 VPC 配置，则删除操作将失败，并显示一条消息，指示必须先删除哪些配置资源。