RAM authorization - Function Compute - Alibaba Cloud Documentation Center

Resource Access Management (RAM) is a service provided by Alibaba Cloud to manage user identities and resource access permissions. Using RAM helps you avoid sharing your Alibaba Cloud account keys with other users and allows you to grant users the least privilege access. RAM uses permission policies to define authorizations. This topic describes the general structure of a RAM policy, and the policy statement elements (Action, Resource, and Condition) defined by Function Compute for RAM permission policies. The RAM code (RamCode) for Function Compute is fc , and the supported authorization granularity is RESOURCE .

General structure of a policy

Permission policies support JSON format with the following general structure:

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

The following list describes the fields in the policy:

Version: Specifies the policy version number. It is fixed at 1.
Statement:
- Effect: Specifies the authorization result. Valid values: Allow and Deny.
- Action: Specifies one or more operations that are allowed or denied.
- Resource: Specifies the specific objects affected by the operations. You can use Alibaba Cloud Resource Names (ARNs) to describe specific resources.
- Condition: Specifies the conditions for the authorization to take effect. This field is optional.
  - Condition operator: Specifies the conditional operators. Different types of conditions support different conditional operators.
  - Condition_key: Specifies the condition keys.
  - Condition_value: Specifies the condition values.

Action

The following table lists the actions defined by Function Compute. The table's columns are detailed below:

Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.
API: The API that you can call to perform the action.
Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.
Resource type: The type of the resource that support authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.
- For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding ARN in the Resource element of the policy.
- For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.
Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys that are applicable across all RAM-integrated services. For more information, see Common condition keys.
Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action	API	Access level	Resource type	Condition key	Dependent action
fc:DeleteScalingConfig	DeleteScalingConfig	delete	All Resource ``	None	None
fc:ListSessions	ListSessions	list	All Resource ``	None	None
fc:CreateLayerVersion	CreateLayerVersion	create	All Resource ``	None	None
fc:DeleteFunction	DeleteFunction	delete	All Resource ``	None	None
fc:GetScalingConfig	GetScalingConfig	get	All Resource ``	None	None
fc:PublishFunctionVersion	PublishFunctionVersion	create	All Resource ``	None	None
fc:ListTagResources	ListTagResources	list	All Resource ``	None	None
fc:ListLayerVersions	ListLayerVersions	list	All Resource ``	None	None
fc:ListAsyncTasks	ListAsyncTasks	list	All Resource ``	None	None
fc:ListVpcBindings	ListVpcBindings	list	All Resource ``	None	None
fc:PutFunctionAsyncInvokeConfig	PutAsyncInvokeConfig	create	All Resource ``	None	None
fc:DeleteLayerVersion	DeleteLayerVersion	delete	All Resource ``	None	None
fc:CreateCustomDomain	CreateCustomDomain	create	All Resource ``	None	None
fc:UpdateFunction	UpdateFunction	update	All Resource ``	None	None
fc:DeleteFunctionAsyncInvokeConfig	DeleteAsyncInvokeConfig	delete	All Resource ``	None	None
fc:CreateAlias	CreateAlias	create	All Resource ``	None	None
fc:ListScalingConfigs	ListScalingConfigs	list	All Resource ``	None	None
fc:GetProvisionConfig	GetProvisionConfig	get	All Resource ``	None	None
fc:ListCustomDomains	ListCustomDomains	list	All Resource ``	None	None
fc:CreateFunction	CreateFunction	create	All Resource ``	None	None
fc:GetAsyncTask	GetAsyncTask	get	All Resource ``	None	None
fc:UpdateAlias	UpdateAlias	update	All Resource ``	None	None
fc:GetFunctionAsyncInvokeConfig	GetAsyncInvokeConfig	get	All Resource ``	None	None
fc:EnableFunctionInvocation	EnableFunctionInvocation	update	*Function `acs:fc:{#regionId}:{#accountId}:functions/{#FunctionName}`	None	None
fc:ListAliases	ListAliases	list	All Resource ``	None	None
fc:GetConcurrencyConfig	GetConcurrencyConfig	get	All Resource ``	None	None
fc:DeleteProvisionConfig	DeleteProvisionConfig	delete	All Resource ``	None	None
fc:GetAlias	GetAlias	get	All Resource ``	None	None
fc:GetTrigger	GetTrigger	get	All Resource ``	None	None
fc:UntagResources	UntagResources	delete	All Resource ``	None	None
fc:StopAsyncTask	StopAsyncTask	update	All Resource ``	None	None
fc:DeleteCustomDomain	DeleteCustomDomain	delete	*CustomDomain `acs:fc:{#regionId}:{#accountId}:custom-domains/{#domainName}`	None	None
fc:DeleteVpcBinding	DeleteVpcBinding	delete	All Resource ``	None	None
fc:ListConcurrencyConfigs	ListConcurrencyConfigs	list	All Resource ``	None	None
fc:GetFunctionCode	GetFunctionCode	get	All Resource ``	None	None
fc:CreateSession	CreateSession	create	All Resource ``	None	None
fc:InvokeFunction	InvokeFunction	create	All Resource ``	None	None
fc:ListInstances	ListInstances	list	All Resource ``	None	None
fc:ChangeResourceGroup	ChangeResourceGroup	update	*Function `acs:fc:{#regionId}:{#accountId}:functions/{#FunctionName}`	None	None
fc:DeleteFunctionVersion	DeleteFunctionVersion	delete	All Resource ``	None	None
fc:GetSession	GetSession	get	All Resource ``	None	None
fc:UpdateTrigger	UpdateTrigger	update	All Resource ``	None	None
fc:ListFunctions	ListFunctions	list	All Resource ``	None	None
fc:TagResources	TagResources	create	All Resource ``	None	None
fc:CreateTrigger	CreateTrigger	create	All Resource ``	None	None
fc:ListFunctionAsyncInvokeConfigs	ListAsyncInvokeConfigs	list	All Resource ``	None	None
fc:GetLayerVersionByArn	GetLayerVersionByArn	get	All Resource ``	None	None
fc:UpdateSession	UpdateSession	update	All Resource ``	None	None
fc:PutConcurrencyConfig	PutConcurrencyConfig	create	All Resource ``	None	None
fc:ListTriggers	ListTriggers	list	All Resource ``	None	None
fc:CreateVpcBinding	CreateVpcBinding	create	All Resource ``	None	None
fc:GetLayerVersion	GetLayerVersion	get	All Resource ``	None	None
fc:UpdateCustomDomain	UpdateCustomDomain	update	All Resource ``	None	None
fc:DeleteTrigger	DeleteTrigger	delete	All Resource ``	None	None
fc:GetCustomDomain	GetCustomDomain	get	All Resource ``	None	None
fc:DisableFunctionInvocation	DisableFunctionInvocation	update	*Function `acs:fc:{#regionId}:{#accountId}:functions/{#FunctionName}`	None	None
fc:DeleteAlias	DeleteAlias	delete	All Resource ``	None	None
fc:ListProvisionConfigs	ListProvisionConfigs	list	All Resource ``	None	None
fc:PutScalingConfig	PutScalingConfig	update	All Resource ``	None	None
fc:PutProvisionConfig	PutProvisionConfig	create	All Resource ``	None	None
fc:PutLayerACL	PutLayerACL	update	All Resource ``	None	None
fc:DeleteConcurrencyConfig	DeleteConcurrencyConfig	delete	All Resource ``	None	None
fc:GetFunction	GetFunction	get	All Resource ``	None	None
fc:ListLayers	ListLayers	list	All Resource ``	None	None
fc:ListFunctionVersions	ListFunctionVersions	list	All Resource ``	None	None

Resource

The following table lists the resources defined by Function Compute. Specify them in the Resource element of RAM policy statements to grant permissions for specific operations. They are uniquely identified by ARNs. Format: acs:{#ramcode}:{#regionId}:{#accountId}:{#resourceType}:

acs: The initialism of Alibaba Cloud service, which indicates the public cloud of Alibaba Cloud.
{#ramcode}: The code used in RAM to indicate an Alibaba Cloud service.
{#regionId}: The region ID. If the resource covers all regions, set it to an asterisk (*).
{#accountId}: The ID of the Alibaba Cloud account. If the resource covers all Alibaba Cloud accounts, set it to an asterisk (*).
{#resourceType}: The service-defined resource identifier. It supports a hierarchical structure, which is similar to a file path. If the statement covers global resources, set it to an asterisk (*).

Resource type	ARN
ScalingConfig	acs:fc:*:{#accountId}:scalingconfig/{#FunctionName}/{#Qualifier}
Function	acs:fc:{#regionId}:{#accountId}:functions/{#FunctionName}
CustomDomain	acs:fc:{#regionId}:{#accountId}:custom-domains/{#domainName}

Condition

The following table lists the product-level condition keys defined by Function Compute. You can also use Alibaba Cloud's Common condition keys. Specify these keys in the Condition element of RAM policy statements to define granular authorization rules. In the condition key, specify the condition values in the Condition_value element of the policy.

Each condition key has a specific data type, such as string, number, Boolean, or IP address. The data type determines which conditional operators can be used to compare the request values against policy values. You must specify the conditional operators compatible with the data type of the condition key. Mismatched operators will invalidate the policy. See Condition operator for valid combinations.

Condition key	Description	Data type
fc:EnableServiceSLSLogging	Whether to enable the SLS logging feature for the function. If this configuration is not specified, the condition value will be undefined.	String
fc:EnableServiceInternetAccess	Whether to enable the function's public network access capability. If this configuration is not specified, the condition value will be undefined.	String
fc:EnableCustomDomainHTTP	Whether to enable HTTP protocol access to custom domains. If this configuration is not specified, the condition value will be undefined.	String
fc:EnableHTTPTriggerAnonymous	Whether to enable anonymous access for the HTTP Trigger. If this configuration is not specified, the condition value will be undefined.	String

How to create custom RAM policies?

You can create custom policies and grant them to RAM users, RAM user groups, or RAM roles. For instructions, see: