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# Amazon EVS 基于身份的策略示例
<a name="security-iam-id-based-policy-examples"></a>

默认情况下 IAM 用户 ，角色无权创建或修改 Amazon EVS 资源。他们也无法使用 AWS 管理控制台 AWS CLI、或 AWS API 执行任务。 IAM 管理员必须创建 IAM 策略，授予用户和角色对其所需的指定资源执行特定 API 操作的权限。然后，管理员必须将这些策略附加到需要这些权限的 IAM 用户 或群组。

要了解如何使用这些示例 JSON 策略文档创建基于 IAM 身份的策略，请参阅 *IAM 用户*指南中的[使用 JSON 编辑器创建策略](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_create-console.html#access_policies_create-json-editor)。

**Topics**
+ [策略最佳实践](#security_iam_service-with-iam-policy-best-practices)
+ [使用亚马逊 EVS 控制台](#security-iam-id-based-policy-examples-console)
+ [允许用户查看他们自己的权限](#security-iam-id-based-policy-examples-view-own-permissions)
+ [创建和管理 Amazon EVS 环境](#security-iam-id-based-policy-examples-create-env)
+ [获取并列出 Amazon EVS 环境、主机和 VLANs](#security-iam-id-based-policy-examples-list-env)

## 策略最佳实践
<a name="security_iam_service-with-iam-policy-best-practices"></a>

基于身份的策略决定了是否有人可以在您的账户中创建、访问或删除Amazon EVS资源。这些操作可能会使 AWS 账户产生成本。创建或编辑基于身份的策略时，请遵循以下指南和建议：
+  **开始使用 AWS 托管策略并转向最低权限权限** — 要开始向用户和工作负载授予权限，请使用为许多常见用例授予权限的 AWS 托管策略。它们在你的版本中可用 AWS 账户。我们建议您通过定义针对您的用例的 AWS 客户托管策略来进一步减少权限。有关更多信息，请参阅《IAM 用户指南》**中的 [AWS 托管策略](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_managed-vs-inline.html#aws-managed-policies)或[工作职能的AWS 托管策略](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_job-functions.html)。
+  **应用最低权限权限**-使用 IAM 策略设置权限时，仅授予执行任务所需的权限。为此，您可以定义在特定条件下可以对特定资源执行的操作，也称为*最低权限许可*。有关使用应用权限 IAM 的更多信息，请参阅 *IAM 用户指南 IAM*[中的策略和权限](https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies.html)。
+  **使用 IAM 策略中的条件进一步限制访问权限**-您可以在策略中添加条件以限制对操作和资源的访问权限。例如，您可以编写策略条件来指定必须使用 SSL 发送所有请求。如果服务操作是通过特定的方式使用的，则也可以使用条件来授予对服务操作的访问权限 AWS 服务，例如 CloudFormation。有关更多信息，请参阅 *IAM 用户指南*中的 [IAM JSON 策略元素：条件](https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_condition.html)。
+  **用于 IAM Access Analyzer 验证您的 IAM 策略以确保权限的安全性和功能性** — IAM Access Analyzer 验证新的和现有的策略，使策略符合 IAM 策略语言 (JSON) 和 IAM 最佳实践。 IAM Access Analyzer 提供 100 多项政策检查和切实可行的建议，以帮助您制定安全和实用的策略。有关更多信息，请参阅 *IAM 用户指南*中的[IAM Access Analyzer 策略验证](https://docs.aws.amazon.com/IAM/latest/UserGuide/access-analyzer-policy-validation.html)。
+  **需要多重身份验证 (MFA**)-如果您的账户中有 IAM 用户 需要root用户的情况，请启用 MFA 以提高安全性。若要在调用 API 操作时需要 MFA，请将 MFA 条件添加到您的策略中。有关更多信息，请参阅《IAM 用户指南》**中的[配置受 MFA 保护的 API 访问](https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_mfa_configure-api-require.html)。

## 使用亚马逊 EVS 控制台
<a name="security-iam-id-based-policy-examples-console"></a>

要访问 Amazon EVS 控制台，IAM 委托人必须拥有一组最低权限。这些权限必须允许委托人列出和查看您 AWS 账户的 Amazon EVS 资源的详细信息。如果创建比必需的最低权限更为严格的基于身份的策略，对于附加了该策略的主体，控制台将无法按预期正常运行。

为确保您的 IAM 委托人仍然可以使用 Amazon EVS 控制台，请使用您自己的唯一名称创建策略，例如。`AmazonEVSAdminPolicy`将策略附加到主体。有关更多信息，请参阅 *IAM 用户指南*中的[为用户添加权限](https://docs.aws.amazon.com/IAM/latest/UserGuide/id_users_change-permissions.html#users_change_permissions-add-console)：

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "evs:*"
            ],
            "Resource": "*"
        },
        {
            "Sid": "EVSServiceLinkedRole",
            "Effect": "Allow",
            "Action": [
                "iam:CreateServiceLinkedRole"
            ],
            "Resource": "arn:aws:iam::*:role/aws-service-role/evs.amazonaws.com/AWSServiceRoleForEVS",
            "Condition": {
                "StringLike": {
                    "iam:AWSServiceName": "evs.amazonaws.com"
                }
            }
        }
    ]
}
```

对于仅调用 AWS CLI 或 AWS API 的用户，您无需为其设置最低控制台权限。相反，只允许访问与您尝试执行的 API 操作相匹配的操作。

## 允许用户查看他们自己的权限
<a name="security-iam-id-based-policy-examples-view-own-permissions"></a>

此示例说明如何创建允许查看附加 IAM 用户 到其用户身份的内联和托管策略的策略。此策略包括在控制台上或使用 AWS CLI 或 AWS API 以编程方式完成此操作的权限。

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Sid": "ViewOwnUserInfo",
            "Effect": "Allow",
            "Action": [
                "iam:GetUserPolicy",
                "iam:ListGroupsForUser",
                "iam:ListAttachedUserPolicies",
                "iam:ListUserPolicies",
                "iam:GetUser"
            ],
            "Resource": ["arn:aws:iam::*:user/${aws:username}"]
        },
        {
            "Sid": "NavigateInConsole",
            "Effect": "Allow",
            "Action": [
                "iam:GetGroupPolicy",
                "iam:GetPolicyVersion",
                "iam:GetPolicy",
                "iam:ListAttachedGroupPolicies",
                "iam:ListGroupPolicies",
                "iam:ListPolicyVersions",
                "iam:ListPolicies",
                "iam:ListUsers"
            ],
            "Resource": "*"
        }
    ]
}
```

## 创建和管理 Amazon EVS 环境
<a name="security-iam-id-based-policy-examples-create-env"></a>

此示例策略包括创建和删除 Amazon EVS 环境以及创建环境后添加或删除主机所需的权限。

您可以将 AWS 区域 替换为 AWS 区域 要在其中创建环境的。如果您的账户已经有 `AWSServiceRoleForAmazonEVS` 角色，您可以从策略中删除 `iam:CreateServiceLinkedRole` 操作。如果您曾经在自己的账户中创建过 Amazon EVS 环境，则具有这些权限的角色已经存在，除非您将其删除。

```
{
    "Version":"2012-10-17",		 	 	 
    "Statement": [
        {
            "Sid": "ReadOnlyDescribeActions",
            "Effect": "Allow",
            "Action": [
                "ec2:DescribeVpcs",
                "ec2:DescribeInstanceStatus",
                "ec2:DescribeHosts",
                "ec2:DescribeDhcpOptions",
                "ec2:DescribeAddresses",
                "ec2:DescribeKeyPairs",
                "ec2:DescribeSubnets",
                "ec2:DescribeNetworkInterfaces",
                "ec2:DescribeInstances",
                "ec2:DescribeRouteServers",
                "ec2:DescribeRouteServerEndpoints",
                "ec2:DescribeRouteServerPeers",
                "ec2:DescribePlacementGroups",
                "ec2:DescribeVolumes",
                "ec2:DescribeSecurityGroups",
                "support:DescribeServices",
                "support:DescribeSupportLevel",
                "servicequotas:GetServiceQuota",
                "servicequotas:ListServiceQuotas"
            ],
            "Resource": "*"
        },
        {
            "Sid": "ModifyNetworkInterfaceStatement",
            "Effect": "Allow",
            "Action": [
                "ec2:ModifyNetworkInterfaceAttribute",
                "ec2:DeleteNetworkInterface"
            ],
            "Resource": "arn:aws:ec2:*:*:network-interface/*",
            "Condition": {
                "Null": {
                    "aws:ResourceTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "ModifyNetworkInterfaceStatementForSubnetAssociation",
            "Effect": "Allow",
            "Action": [
                "ec2:ModifyNetworkInterfaceAttribute"
            ],
            "Resource": "arn:aws:ec2:*:*:subnet/*",
            "Condition": {
                "Null": {
                    "aws:ResourceTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "CreateNetworkInterfaceWithTag",
            "Effect": "Allow",
            "Action": [
                "ec2:CreateNetworkInterface"
            ],
            "Resource": [
                "arn:aws:ec2:*:*:network-interface/*"
            ],
            "Condition": {
                "Null": {
                    "aws:RequestTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "CreateNetworkInterfaceAdditionalResources",
            "Effect": "Allow",
            "Action": [
                "ec2:CreateNetworkInterface"
            ],
            "Resource": [
                "arn:aws:ec2:*:*:subnet/*",
                "arn:aws:ec2:*:*:security-group/*"
            ],
            "Condition": {
                "Null": {
                    "aws:ResourceTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "TagOnCreateEC2Resources",
            "Effect": "Allow",
            "Action": [
                "ec2:CreateTags"
            ],
            "Resource": [
                "arn:aws:ec2:*:*:network-interface/*",
                "arn:aws:ec2:*:*:instance/*",
                "arn:aws:ec2:*:*:volume/*",
                "arn:aws:ec2:*:*:subnet/*"
            ],
            "Condition": {
                "StringEquals": {
                    "ec2:CreateAction": [
                        "CreateNetworkInterface",
                        "RunInstances",
                        "CreateSubnet",
                        "CreateVolume"
                    ]
                },
                "Null": {
                    "aws:RequestTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "DetachNetworkInterface",
            "Effect": "Allow",
            "Action": [
                "ec2:DetachNetworkInterface"
            ],
            "Resource": [
                "arn:aws:ec2:*:*:network-interface/*",
                "arn:aws:ec2:*:*:instance/*"
            ],
            "Condition": {
                "Null": {
                    "aws:ResourceTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "RunInstancesWithTag",
            "Effect": "Allow",
            "Action": [
                "ec2:RunInstances"
            ],
            "Resource": [
                "arn:aws:ec2:*:*:instance/*",
                "arn:aws:ec2:*:*:volume/*"
            ],
            "Condition": {
                "Null": {
                    "aws:RequestTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "RunInstancesWithTagResource",
            "Effect": "Allow",
            "Action": [
                "ec2:RunInstances"
            ],
            "Resource": [
                "arn:aws:ec2:*:*:subnet/*",
                "arn:aws:ec2:*:*:network-interface/*"
            ],
            "Condition": {
                "Null": {
                    "aws:ResourceTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "RunInstancesWithoutTag",
            "Effect": "Allow",
            "Action": [
                "ec2:RunInstances"
            ],
            "Resource": [
                "arn:aws:ec2:*:*:image/*",
                "arn:aws:ec2:*:*:security-group/*",
                "arn:aws:ec2:*:*:key-pair/*",
                "arn:aws:ec2:*:*:placement-group/*"
            ]
        },
        {
            "Sid": "TerminateInstancesWithTag",
            "Effect": "Allow",
            "Action": [
                "ec2:TerminateInstances",
                "ec2:ModifyInstanceAttribute"
            ],
            "Resource": "arn:aws:ec2:*:*:instance/*",
            "Condition": {
                "Null": {
                    "aws:ResourceTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "CreateSubnetWithTag",
            "Effect": "Allow",
            "Action": [
                "ec2:CreateSubnet"
            ],
            "Resource": [
                "arn:aws:ec2:*:*:subnet/*"
            ],
            "Condition": {
                "Null": {
                    "aws:RequestTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "CreateSubnetWithoutTagForExistingVPC",
            "Effect": "Allow",
            "Action": [
                "ec2:CreateSubnet"
            ],
            "Resource": [
                "arn:aws:ec2:*:*:vpc/*"
            ]
        },
        {
            "Sid": "DeleteSubnetWithTag",
            "Effect": "Allow",
            "Action": [
                "ec2:DeleteSubnet"
            ],
            "Resource": "arn:aws:ec2:*:*:subnet/*",
            "Condition": {
                "Null": {
                    "aws:ResourceTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "VolumeDeletion",
            "Effect": "Allow",
            "Action": [
                "ec2:DeleteVolume"
            ],
            "Resource": "arn:aws:ec2:*:*:volume/*",
             "Condition": {
                "Null": {
                    "aws:ResourceTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "VolumeDetachment",
            "Effect": "Allow",
            "Action": [
                "ec2:DetachVolume"
            ],
            "Resource": [
                "arn:aws:ec2:*:*:instance/*",
                "arn:aws:ec2:*:*:volume/*"
            ],
            "Condition": {
                "Null": {
                    "aws:ResourceTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "RouteServerAccess",
            "Effect": "Allow",
            "Action": [
                "ec2:GetRouteServerAssociations"
            ],
            "Resource": "arn:aws:ec2:*:*:route-server/*"

        },
        {
            "Sid": "EVSServiceLinkedRole",
            "Effect": "Allow",
            "Action": [
                "iam:CreateServiceLinkedRole"
            ],
            "Resource": "arn:aws:iam::*:role/aws-service-role/evs.amazonaws.com/AWSServiceRoleForEVS",
            "Condition": {
                "StringLike": {
                    "iam:AWSServiceName": "evs.amazonaws.com"
                }
            }
        },
        {
            "Sid": "SecretsManagerCreateWithTag",
            "Effect": "Allow",
            "Action": [
                "secretsmanager:CreateSecret"
            ],
            "Resource": "arn:aws:secretsmanager:*:*:secret:*",
            "Condition": {
                "StringEquals": {
                    "aws:RequestTag/AmazonEVSManaged": "true"
                },
                "ForAllValues:StringEquals": {
                    "aws:TagKeys": [
                        "AmazonEVSManaged"
                    ]
                }
            }
        },
        {
            "Sid": "SecretsManagerTagging",
            "Effect": "Allow",
            "Action": [
                "secretsmanager:TagResource"
            ],
            "Resource": "arn:aws:secretsmanager:*:*:secret:*",
            "Condition": {
                "StringEquals": {
                    "aws:RequestTag/AmazonEVSManaged": "true",
                    "aws:ResourceTag/AmazonEVSManaged": "true"
                },
                "ForAllValues:StringEquals": {
                    "aws:TagKeys": [
                        "AmazonEVSManaged"
                    ]
                }
            }
        },
        {
            "Sid": "SecretsManagerOps",
            "Effect": "Allow",
            "Action": [
                "secretsmanager:DeleteSecret",
                "secretsmanager:GetSecretValue",
                "secretsmanager:UpdateSecret"
            ],
            "Resource": "arn:aws:secretsmanager:*:*:secret:*",
            "Condition": {
                "Null": {
                    "aws:ResourceTag/AmazonEVSManaged": "false"
                }
            }
        },
        {
            "Sid": "SecretsManagerRandomPassword",
            "Effect": "Allow",
            "Action": [
                "secretsmanager:GetRandomPassword"
            ],
            "Resource": "*"
        },
        {
            "Sid": "EVSPermissions",
            "Effect": "Allow",
            "Action": [
                "evs:*"
            ],
            "Resource": "*"
        },
        {
            "Sid": "KMSKeyAccessInConsole",
            "Effect": "Allow",
            "Action": [
                "kms:DescribeKey"
            ],
            "Resource": "arn:aws:kms:*:*:key/*"
        },

        {
            "Sid": "KMSKeyAliasAccess",
            "Effect": "Allow",
            "Action": [
                "kms:ListAliases"
            ],
            "Resource": "*"
        }
    ]
}
```

## 获取并列出 Amazon EVS 环境、主机和 VLANs
<a name="security-iam-id-based-policy-examples-list-env"></a>

此示例策略包括管理员在 us-east-2 中获取和列出给定账户中的所有 Amazon EVS 环境、主机以及 VLANs 该账户所需的最低权限。 AWS 区域

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