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# AWS PCS 的最低权限
<a name="security-min-permissions"></a>

本节介绍了 IAM 身份（用户、群组或角色）使用该服务所需的最低 IAM 权限。

**Contents**
+ [使用 API 操作的最低权限](#security-min-permissions_api)
+ [使用标签的最低权限](#security-min-permissions_tagging)
+ [支持日志的最低权限](#security-min-permissions_logging)
+ [使用容量块的最低权限](#security-min-permissions_capacity-blocks)
+ [服务管理员的最低权限](#security-min-permissions_admin-policy)

## 使用 API 操作的最低权限
<a name="security-min-permissions_api"></a>


| API 操作 | 最小权限 | 控制台的其他权限 | 
| --- | --- | --- | 
|  CreateCluster  |  <pre>ec2:CreateNetworkInterface,<br />ec2:DescribeVpcs,<br />ec2:DescribeSubnets,<br />ec2:DescribeSecurityGroups, <br />ec2:GetSecurityGroupsForVpc, <br />iam:CreateServiceLinkedRole,<br />secretsmanager:CreateSecret,<br />secretsmanager:TagResource,<br />secretsmanager:RotateSecret,<br />pcs:CreateCluster</pre>  |    | 
|  ListClusters  |  <pre>pcs:ListClusters</pre>  |    | 
|  GetCluster  |  <pre>pcs:GetCluster</pre>  |  <pre>ec2:DescribeSubnets</pre>  | 
|  DeleteCluster  |  <pre>pcs:DeleteCluster</pre>  |    | 
|  CreateComputeNodeGroup  |  <pre>ec2:DescribeVpcs,<br />ec2:DescribeSubnets,<br />ec2:DescribeSecurityGroups,<br />ec2:DescribeLaunchTemplates,<br />ec2:DescribeLaunchTemplateVersions,<br />ec2:DescribeInstanceTypes,<br />ec2:DescribeInstanceTypeOfferings,<br />ec2:RunInstances,<br />ec2:CreateFleet,<br />ec2:CreateTags,<br />iam:PassRole,<br />iam:GetInstanceProfile,<br />pcs:CreateComputeNodeGroup</pre>  |  <pre>iam:ListInstanceProfiles,<br />ec2:DescribeImages,<br />pcs:GetCluster</pre>  | 
|  ListComputerNodeGroups  |  <pre>pcs:ListComputeNodeGroups</pre>  |  <pre>pcs:GetCluster</pre>  | 
|  GetComputeNodeGroup  |  <pre>pcs:GetComputeNodeGroup</pre>  |  <pre>ec2:DescribeSubnets</pre>  | 
|  UpdateComputeNodeGroup  |  <pre>ec2:DescribeVpcs,<br />ec2:DescribeSubnets,<br />ec2:DescribeSecurityGroups,<br />ec2:DescribeLaunchTemplates,<br />ec2:DescribeLaunchTemplateVersions,<br />ec2:DescribeInstanceTypes,<br />ec2:DescribeInstanceTypeOfferings,<br />ec2:RunInstances,<br />ec2:CreateFleet,<br />ec2:CreateTags,<br />iam:PassRole,<br />iam:GetInstanceProfile,<br />pcs:UpdateComputeNodeGroup</pre>  |  <pre>pcs:GetComputeNodeGroup,<br />iam:ListInstanceProfiles,<br />ec2:DescribeImages,<br />pcs:GetCluster</pre>  | 
|  DeleteComputeNodeGroup  |  <pre>pcs:DeleteComputeNodeGroup</pre>  |    | 
|  CreateQueue  |  <pre>pcs:CreateQueue</pre>  |  <pre>pcs:ListComputeNodeGroups,<br />pcs:GetCluster</pre>  | 
|  ListQueues  |  <pre>pcs:ListQueues</pre>  |  <pre>pcs:GetCluster</pre>  | 
|  GetQueue  |  <pre>pcs:GetQueue</pre>  |    | 
|  UpdateQueue  |  <pre>pcs:UpdateQueue</pre>  |  <pre>pcs:ListComputeNodeGroups,<br />pcs:GetQueue</pre>  | 
|  DeleteQueue  |  <pre>pcs:DeleteQueue</pre>  |    | 

## 使用标签的最低权限
<a name="security-min-permissions_tagging"></a>

 在 AWS PCS 中对资源使用标签需要以下权限。

```
pcs:ListTagsForResource,
pcs:TagResource,
pcs:UntagResource
```

## 支持日志的最低权限
<a name="security-min-permissions_logging"></a>

AWS PCS 将日志数据发送到 Amazon CloudWatch 日志（CloudWatch 日志）。您必须确保您的身份具有使用 CloudWatch 日志的最低权限。有关更多信息，请参阅 *Amazon Logs 用户指南中的管理 CloudWatch CloudWatch 日志*[资源访问权限概述](https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/iam-access-control-overview-cwl.html)。

有关服务向日志发送日志所需的权限的信息，请参阅 *Amazon CloudWatch Lo [g CloudWatch s 用户指南中的启用 AWS 服务](https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/AWS-logs-and-resource-policy.html#AWS-vended-logs-permissions-V2)日志*记录。

## 使用容量块的最低权限
<a name="security-min-permissions_capacity-blocks"></a>

适用于 ML 的 Amazon EC2 容量块是一种 Amazon EC2 购买选项，允许您提前付费在特定日期和时间范围内预留基于 GPU 的加速计算实例，以支持短期工作负载。有关更多信息，请参阅 [将 Amazon EC2 容量块用于带有 AWS PCS 的机器学习](capacity-blocks.md)。

创建或更新计算节点组时，您可以选择使用容量块。您用于创建或更新计算节点组的 IAM 身份必须具有以下权限：

```
ec2:DescribeCapacityReservations
```

## 服务管理员的最低权限
<a name="security-min-permissions_admin-policy"></a>

以下 IAM 策略指定了 IAM 身份（用户、群组或角色）配置和管理 AWS PCS 服务所需的最低权限。

**注意**  
不配置和管理服务的用户不需要这些权限。仅运行作业的用户使用安全外壳 (SSH) 连接到集群。 AWS Identity and Access Management (IAM) 不处理 SSH 的身份验证或授权。

```
{
  "Version": "2012-10-17",		 	 	 
  "Statement": [
    {
      "Sid": "PCSAccess",
      "Effect": "Allow",
      "Action": [
        "pcs:*"
      ],
      "Resource": "*"
    },
    {
      "Sid": "EC2Access",
      "Effect": "Allow",
      "Action": [
        "ec2:CreateNetworkInterface",
        "ec2:DescribeImages",
        "ec2:GetSecurityGroupsForVpc",
        "ec2:DescribeSubnets",
        "ec2:DescribeSecurityGroups",
        "ec2:DescribeVpcs",
        "ec2:DescribeLaunchTemplates",
        "ec2:DescribeLaunchTemplateVersions",
        "ec2:DescribeInstanceTypes",
        "ec2:DescribeInstanceTypeOfferings",
        "ec2:RunInstances",
        "ec2:CreateFleet",
        "ec2:CreateTags",
        "ec2:DescribeCapacityReservations"
      ],
      "Resource": "*"
    },
    {
      "Sid": "IamInstanceProfile",
      "Effect": "Allow",
      "Action": [
        "iam:GetInstanceProfile"
      ],
      "Resource": "*"
    },
    {
      "Sid": "IamPassRole",
      "Effect": "Allow",
      "Action": [
        "iam:PassRole"
      ],
      "Resource": [
        "arn:aws:iam::*:role/*/AWSPCS*",
        "arn:aws:iam::*:role/AWSPCS*",
        "arn:aws:iam::*:role/aws-pcs/*",
        "arn:aws:iam::*:role/*/aws-pcs/*"
      ],
      "Condition": {
        "StringEquals": {
           "iam:PassedToService": [
             "ec2.amazonaws.com"
           ]
        }
      }
    },
    {
      "Sid": "SLRAccess",
      "Effect": "Allow",
      "Action": [
        "iam:CreateServiceLinkedRole"
      ],
      "Resource": [
        "arn:aws:iam::*:role/aws-service-role/pcs.amazonaws.com/AWSServiceRoleFor*",
        "arn:aws:iam::*:role/aws-service-role/spot.amazonaws.com/AWSServiceRoleFor*"
      ],
      "Condition": {
        "StringLike": {
          "iam:AWSServiceName": [
            "pcs.amazonaws.com",
            "spot.amazonaws.com"
          ]
        }
      }
    },
    {
      "Sid": "AccessKMSKey",
      "Effect": "Allow",
      "Action": [
        "kms:Decrypt",
        "kms:Encrypt",
        "kms:GenerateDataKey",
        "kms:CreateGrant",
        "kms:DescribeKey"
      ],
      "Resource": "*"
    },
    {
      "Sid": "SecretManagementAccess",
      "Effect": "Allow",
      "Action": [
        "secretsmanager:CreateSecret",
        "secretsmanager:TagResource",
        "secretsmanager:UpdateSecret",
        "secretsmanager:RotateSecret"
      ],
      "Resource": "*"
    },
    { 
       "Sid": "ServiceLogsDelivery",
       "Effect": "Allow",
       "Action": [
         "pcs:AllowVendedLogDeliveryForResource",
         "logs:PutDeliverySource",
         "logs:PutDeliveryDestination",
         "logs:CreateDelivery"
       ],
       "Resource": "*"
    }
  ]
}
```