RAM授权策略的组成元素详解-NAT网关-阿里云-NAT网关(NAT Gateway)-阿里云帮助中心

访问控制（RAM）是阿里云提供的管理用户身份与资源访问权限的服务。使用 RAM 可以让您避免与其他用户共享阿里云账号密钥，并可按需为用户授予最小权限。RAM 中使用权限策略描述授权的具体内容。

本文为您介绍 专有网络VPC 为 RAM 权限策略定义的操作（Action）、资源（Resource）和条件（Condition）。 专有网络VPC 的 RAM 代码（RamCode）为 vpc ，支持的授权粒度为 资源级 。

权限策略通用结构

权限策略支持 JSON 格式，其通用结构如下：

{
  "Version": "1",
  "Statement": [
    {
      "Effect": "<Effect>",
      "Action": "<Action>",
      "Resource": "<Resource>",
      "Condition": {
        "<Condition_operator>": {
          "<Condition_key>": [
            "<Condition_value>"
          ]
        }
      }
    }
  ]
}

各字段含义如下：

Effect：权限策略效果。取值：Allow（允许）、Deny（拒绝）。
Action：授予允许或拒绝权限的具体操作。具体信息，请参见操作（Action）。
Resource：受操作影响的具体对象，您可以使用资源 ARN 来描述指定资源。具体信息，请参见资源（Resource）。
Condition：指授权生效的条件。可选字段。具体信息，请参见条件（Condition）。
- Condition_operator：条件运算符，不同类型的条件对应不同的条件运算符。具体信息，请参见权限策略基本元素。
- Condition_key：条件关键字。
- Condition_value：条件关键字对应的值。

操作（Action）

下表是专有网络VPC定义的操作，这些操作可以在 RAM 权限策略语句的Action元素中使用，用来授予执行该操作的权限。下面对表中的具体项提供说明：

操作：是指具体的权限点。
API：是指操作对应的 API 接口。
访问级别：是指每个操作的访问级别，取值为写入（Write）、读取（Read）或列出（List）。
资源类型：是指操作中支持授权的资源类型。具体说明如下：
- 对于必选的资源类型，用前面加 * 表示。
- 对于不支持资源级授权的操作，用全部资源表示。
条件关键字：是指云产品自身定义的条件关键字。该列不体现适用于任何操作的通用条件关键字。
关联操作：是指成功执行操作所需要的其他权限。操作者必须同时具备关联操作的权限，操作才能成功。

操作	API	访问级别	资源类型	条件关键字	关联操作
vpc:ModifySnatEntry	ModifySnatEntry	update	*SnatTable `acs:vpc:{#regionId}:{#accountId}:snattable/{#SnatTableId}`	无	无
vpc:DeleteNatIpCidr	DeleteNatIpCidr	delete	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:CreateSnatEntry	CreateSnatEntry	create	SnatEntry `acs:vpc:{#regionId}:{#accountId}:snattable/`	无	无
vpc:ModifyFullNatEntryAttribute	ModifyFullNatEntryAttribute	update	*FullNat `acs:vpc:{#regionId}:{#accountId}:vpcfullnattable/{#FullNatTableId}`	无	无
vpc:CreateNatIp	CreateNatIp	create	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:CreateForwardEntry	CreateForwardEntry	create	*ForwardTable `acs:vpc:{#regionId}:{#accountId}:forwardtable/{#ForwardTableId}`	无	无
vpc:CreateNatGateway	CreateNatGateway	create	NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/`	无	无
vpc:DeleteFullNatEntry	DeleteFullNatEntry	delete	*FullNat `acs:vpc:{#regionId}:{#accountId}:vpcfullnattable/{#FullNatTableId}`	无	无
vpc:ListNatIpCidrs	ListNatIpCidrs	list	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:ModifyNatIpAttribute	ModifyNatIpAttribute	update	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:ModifyNatGatewayAttribute	ModifyNatGatewayAttribute	update	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:ListFullNatEntries	ListFullNatEntries	get	*FullNat `acs:vpc:{#regionId}:{#accountId}:vpcfullnattable/{#FullNatTableId}`	无	无
vpc:VpcDescribeVpcNatGatewayNetworkInterfaceQuota	VpcDescribeVpcNatGatewayNetworkInterfaceQuota	get	全部资源 ``	无	无
vpc:DescribeNatGateways	DescribeNatGateways	get	NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/*` NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:DeleteForwardEntry	DeleteForwardEntry	delete	*ForwardTable `acs:vpc:{#regionId}:{#accountId}:forwardtable/{#ForwardTableId}`	无	无
vpc:DeleteNatGateway	DeleteNatGateway	delete	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#natgatewayid}`	无	无
vpc:DescribeForwardTableEntries	DescribeForwardTableEntries	get	*ForwardTable `acs:vpc:{#regionId}:{#accountId}:forwardtable/{#ForwardTableId}`	无	无
vpc:ListNatIps	ListNatIps	get	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:ListEnhanhcedNatGatewayAvailableZones	ListEnhanhcedNatGatewayAvailableZones	list	全部资源 ``	无	无
vpc:CreateNatIpCidr	CreateNatIpCidr	create	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:GetNatGatewayAttribute	GetNatGatewayAttribute	get	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:ModifyForwardEntry	ModifyForwardEntry	update	*ForwardTable `acs:vpc:{#regionId}:{#accountId}:forwardtable/{#ForwardTableId}`	无	无
vpc:CreateFullNatEntry	CreateFullNatEntry	create	*FullNat `acs:vpc:{#regionId}:{#accountId}:vpcfullnattable/{#FullNatTableId}`	无	无
vpc:DeleteSnatEntry	DeleteSnatEntry	delete	*SnatTable `acs:vpc:{#regionId}:{#accountId}:snattable/{#SnatTableId}`	无	无
vpc:DescribeSnatTableEntries	DescribeSnatTableEntries	get	*SnatTable `acs:vpc:{#regionId}:{#accountId}:snattable/{#SnatTableId}`	无	无
vpc:ModifyNatGatewaySpec	ModifyNatGatewaySpec	update	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:ModifyNatIpCidrAttribute	ModifyNatIpCidrAttribute	update	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:DeleteNatIp	DeleteNatIp	delete	*NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无
vpc:DescribeNatGatewayAssociateNetworkInterfaces	DescribeNatGatewayAssociateNetworkInterfaces	list	NatGateway `acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}`	无	无

资源（Resource）

下表是专有网络VPC定义的资源，这些资源可以在 RAM 权限策略语句的Resource元素中使用，用来授予对该资源执行具体操作的权限。其中，资源 ARN 是资源在阿里云上的唯一标识。具体说明如下：

{#}为变量标识，需要您替换为实际值。例如：{#ramcode}需要您替换为实际的云服务RAM代码。
*表示全部。例如：
- {#resourceType}为*时：表示全部资源。
- {#regionId}为*时：表示全部地域。
- {#accountId}为*时：表示全部阿里云账号。

资源类型	资源 ARN
TrafficQos	acs:vpc:{#regionId}:{#accountId}:TrafficQos/* acs:vpc:{#regionId}:{#accountId}:trafficqos/{#QosId}
RouteTargetGroup	acs:vpc:{#regionId}:{#accountId}:routetargetgroup/* acs:vpc:{#regionId}:{#accountId}:routetargetgroup/{#RouteTargetGroupId}
VPC	acs:vpc:{#regionId}:{#accountId}:vpc/{#VpcId} acs:vpc:{#regionId}:{#accountId}:vpc/* acs:vpc:{#regionId}:{#accountId}:vpc/{#InstanceId}
FlowLog	acs:vpc:{#regionId}:{#accountId}:flowlog/{#FlowLogId} acs:vpc:{#regionId}:{#accountId}:flowlog/*
VirtualBorderRouter	acs:vpc:{#regionId}:{#accountId}:virtualborderrouter/{#VirtualBorderRouterId} acs:vpc:{#regionId}:{#AccountId}:virtualborderrouter/{#VbrId} acs:vpc::{#accountId}:virtualborderrouter/{#VirtualBorderRouterId} acs:vpc:{#regionId}:{#AccountId}:virtualborderrouter/ acs:vpc:{#regionId}:{#accountId}:virtualborderrouter/{#InstanceId}
RouteTable	acs:vpc:{#regionId}:{#accountId}:routetable/* acs:vpc:{#regionId}:{#accountId}:routetable/{#RouteTableId} acs:vpc:{#regionId}:{#accountId}:routetable/{#RouteTable}
VpnConnections	acs:vpc:{#regionId}:{#accountId}:vpnconnection/{#VpnConnectionId}
SnatTable	acs:vpc:{#regionId}:{#accountId}:snattable/{#SnatTableId}
TrafficMirrorFilter	acs:vpc:{#regionId}:{#accountId}:trafficmirrorfilter/{#TrafficMirrorFilterId} acs:vpc:{#regionId}:{#accountId}:trafficmirrorfilter/*
CustomerGateway	acs:vpc:{#regionId}:{#accountId}:customergateway/* acs:vpc:{#regionId}:{#accountId}:customergateway/{#CustomerGatewayId} acs:vpc:{#Region}:{#AccountId}:customergateway/{#CustomerGatewayId}
VpnConnection	acs:vpc:{#regionId}:{#accountId}:vpnconnection/* acs:vpc:{#regionId}:{#accountId}:vpnconnection/{#VpnConnectionId} acs:vpc:{#regionId}:{#accountId}:* acs:vpc:{#Region}:{#AccountId}:vpnconnection/{#VpnConnectionId}
NatGateway	acs:vpc:{#regionId}:{#accountId}:natgateway/{#NatGatewayId} acs:vpc:{#regionId}:{#accountId}:natgateway/* acs:natgateway:{#regionId}:{#accountId}:natgateway/{#NatGatewayId}
VSwitchCidrReservation	acs:vpc:{#regionId}:{#accountId}:vswitchcidrreservation/{#VSwitchCidrReservationId} acs:vpc:{#regionId}:{#accountId}:vswitchcidrreservation/*
GatewayEndpoint	acs:vpc:{#regionId}:{#accountId}:gatewayendpoint/{#GatewayEndpointId} acs:vpc:{#regionId}:{#accountId}:gatewayendpoint/*
GlobalAccelerationInstance	acs:vpc:{#regionId}:{#accountId}:globalaccelerationinstance/{#GlobalAccelerationInstanceId} acs:vpc:{#regionId}:{#accountId}:globalaccelerationinstance/* acs:vpc:{#regionId}:{#accountId}:GlobalAccelerationInstance/*
Address	acs:vpc:{#regionId}:{#accountId}:eip/{#AllocationId} acs:vpc:{#regionId}:{#accountId}:eip/*
Instance	acs:ecs:{#regionId}:{#accountId}:instance/* acs:ecs:{#regionId}:{#accountId}:instance/{#Instanceid} acs:vpc:{#regionId}:{#accountId}:instance/{#InstanceId}
VpnGateway	acs:vpc:{#regionId}:{#accountId}:vpngateway/{#VpnGatewayId} acs:vpc:{#Region}:{#AccountId}:vpngateway/{#VpnInstanceId} acs:vpc:{#regionId}:{#accountId}:vpngateway/{#VpnInstanceId} acs:vpc:{#regionId}:{#accountId}:vpngateway/* acs:vpc:{#regionId}:{#accountId}:
VSwitch	acs:vpc:{#regionId}:{#accountId}:vswitch/* acs:vpc:{#regionId}:{#accountId}:vswitch/{#VSwitchId}
PhysicalConnection	acs:vpc:{#regionId}:{#accountId}:physicalconnection/{#PhysicalConnectionId} acs:vpc:{#regionId}:{#accountId}:physicalconnection/*
RouterInterface	acs:vpc:{#regionId}:{#AccountId}:routerinterface/{#RouterInterfaceId} acs:vpc:{#regionId}:{#accountId}:routerinterface/*
TrafficMirrorSession	acs:vpc:{#regionId}:{#accountId}:trafficmirrorsession/{#TrafficMirrorSessionId} acs:vpc:{#regionId}:{#accountId}:trafficmirrorsession/*
Ipv6Address	acs:vpc:{#regionId}:{#accountId}:ipv6address/{#Ipv6AddressId} acs:vpc:{#regionId}:{#accountId}:ipv6address/*
BandwidthPackage	acs:vpc:{#regionId}:{#accountId}:combandwidthpackage/{#BandwidthPackageId} acs:vpc:{#regionId}:{#accountId}:bandwidthpackage/{#BandwidthPackageId}
NetworkAcl	acs:vpc:{#regionId}:{#accountId}:networkacl/* acs:vpc:{#regionId}:{#accountId}:networkacl/{#NetworkAclId}
DhcpOptionsSet	acs:vpc:{#regionId}:{#accountId}:dhcpoptionsset/{#DhcpOptionsSetId} acs:vpc:{#regionId}:{#accountId}:dhcpoptionsset/*
IpsecServer	acs:vpc:{#Region}:{#AccountId}: vpnipsecserver/{#IpsecServerId} acs:vpc:{#regionId}:{#accountId}:vpnipsecserver/{#IpsecServerId} acs:vpc:{#regionId}:{#accountId}:ipsecserver/* acs:vpc:{#regionId}:{#accountId}: vpnipsecserver/{#IpsecServerId}
Ipv4Gateway	acs:vpc:{#regionId}:{#accountId}:ipv4gateway/* acs:vpc:{#regionId}:{#accountId}:ipv4gateway/{#ipv4gatewayId}
PublicIpAddressPool	acs:vpc:{#regionId}:{#accountId}:publicipaddresspool/* acs:vpc:{#regionId}:{#accountId}:publicipaddresspool/{#PublicIpAddressPoolId}
Ipv6Translator	acs:vpc:{#regionId}:{#accountId}:ipv6trans/{#Ipv6TranslatorId} acs:vpc:{#regionId}:{#accountId}:ipv6trans/*
Ipv6Gateway	acs:vpc:{#regionId}:{#accountId}:ipv6gateway/{#Ipv6GatewayId} acs:vpc:{#regionId}:{#accountId}:ipv6gateway/*
HaVip	acs:vpc:{#regionId}:{#accountId}:havip/* acs:vpc:{#regionId}:{#accountId}:havip/{#HaVipId}
VRouter	acs:vpc:{#regionId}:{#accountId}:vrouter/* acs:vpc:{#regionId}:{#accountId}:vrouter/{#VRouterId}
SnatEntry	acs:vpc:{#regionId}:{#accountId}:snattable/*
PrefixList	acs:vpc:{#regionId}:{#accountId}:prefixlist/{#PrefixListId} acs:vpc:{#regionId}:{#accountId}:prefixlist/*
FullNat	acs:vpc:{#regionId}:{#accountId}:vpcfullnattable/{#FullNatTableId}
IPv6Translator	acs:vpc:{#regionId}:{#accountId}:ipv6trans/{#IPv6TranslatorId} acs:vpc:{#regionId}:{#accountId}:ipv6trans/*
VpnCertificateAttachment	acs:vpc:{#regionId}:{#accountId}:vpncertificateattachment/{#VpnGatewayId}/{#CertificateType}/{#CertificateId}
TrafficMirrorService	acs:vpc:{#regionId}:{#accountId}:trafficmirror/*
SslVpnServer	acs:vpc:{#regionId}:{#accountId}:sslvpnserver/* acs:vpc:{#regionId}:{#accountId}:sslvpnserver/{#SslVpnServerId} acs:vpc:{#Region}:{#AccountId}:sslvpnserver/{#SslVpnServerId}
CommonBandwidthPackage	acs:vpc:{#regionId}:{#accountId}:combandwidthpackage/{#CommonBandwidthPackageId} acs:vpc:{#regionId}:{#accountId}:combandwidthpackage/*
ForwardTable	acs:vpc:{#regionId}:{#accountId}:forwardtable/{#ForwardTableId}
SegmentAddress	acs:vpc:{#regionId}:{#accountId}:eip/* acs:vpc:{#regionId}:{#accountId}:eip/{#AllocationId} acs:eip:{#regionId}:{#accountId}:eipsegment/{#SegmentInstanceId}
Ipv6EgressRule	acs:vpc:{#regionId}:{#accountId}:ipv6gateway/{#Ipv6GatewayId}
Eip	acs:vpc:{#regionId}:{#accountId}:eip/{#EipId} acs:vpc:{#regionId}:{#accountId}:eip/{#AllocationId}
physicalconnection	acs:vpc:{#regionId}:{#accountId}:physicalconnection/*
Ipv6InternetBandwidth	acs:vpc:{#regionId}:{#accountId}:vpc/* acs:vpc:{#regionId}:{#accountId}:ipv6bandwidth/{#Ipv6InternetBandwidthId} acs:vpc:{#regionId}:{#accountId}:ipv6bandwidth/*
SslVpnClientCert	acs:vpc:{#regionId}:{#accountId}:sslvpnclientcert/{#SslVpnClientCertId} acs:vpc:{#regionId}:{#accountId}:sslvpnclientcert/*
PublicIpAddressPoolService	acs:vpc:{#regionId}:{#accountId}:publicipaddresspoolservice/*
FlowLogService	acs:vpc:{#regionId}:{#accountId}:flowlog/*
GatewayInfo	acs:vpc:{#regionId}:{#accountId}:eip/*
VpnAttachment	acs:vpc:{#Region}:{#AccountId}:vpnattachment/{#VpnConnectionId}
Association	acs:vpc:{#regionId}:{#accountId}:havip/{#HaVipId}
RouteEntry	acs:vpc:{#regionId}:{#accountId}:routetable/{#RouteTableId}
GrantRuleToCen	acs:vpc:{#regionId}:{#accountId}:vpc/{#InstanceId}

条件（Condition）

下表是专有网络VPC 定义的产品级条件关键字，这些条件关键字可以在 RAM 权限策略语句的Condition元素中使用，用来描述授予权限的条件。以下仅列举产品级的条件关键字，阿里云定义的通用条件关键字也同样适用专有网络VPC。

其中，数据类型决定了您可以使用哪些条件运算符将请求中的值与权限策略语句中的值进行比较。您必须使用与数据类型匹配的条件运算符，否则无法匹配策略语句，授权行为无效。数据类型与条件运算符的对应关系，请参见条件操作类型。

条件关键字	描述	类型
vpc:VRouter	路由器信息	String
vpc:VPC	VPC信息	String
vpc:tag	VPC的标签	String
vpc:TargetAccountRDId	对端用户资源目录ID信息	String
vpc:PhysicalConnection	物理专线信息	String
vpc:VBR	边界路由器信息	String

授权信息

权限策略通用结构

操作（Action）

资源（Resource）

条件（Condition）

相关操作