What is a system policy?
A policy defines a set of permissions that are described based on the policy structure and syntax. You can use policies to describe the authorized resource sets, authorized operation sets, and authorization conditions. Alibaba Cloud Resource Access Management (RAM) provides system policies and custom policies. All system policies are created and updated by Alibaba Cloud. You can use system policies, but you cannot modify them. You can manage and update custom policies based on your business requirements. You can create, update, and delete custom policies. During service iteration, MaxCompute adds new permissions to system policies to support new features and capabilities. The update of a system policy affects all RAM identities to which the policy is attached, including RAM users, RAM user groups, and RAM roles. For more information about RAM policies, see Policy overview.
System policies are designed for new users to quickly get started with Alibaba Cloud products on the management console, though they also enable the use of more advanced methods like API operations or CLI commands. If you are familiar with the advanced methods, we recommend that you use custom policies to implement finer-grained control on who is permitted to call what API operations, thereby improving security.
System policies can be classified into service system policies, service role policies, and service-linked role policies. Some cloud services provide only one or two of the three types of policies. For more information, see the policy types that are described in the following section.
Service system policies
AliyunMaxComputeFullAccess
The AliyunMaxComputeFullAccess policy: Provides full access to MaxCompute via Management Console. It can be attached to RAM identities.
AliyunMaxComputeReadOnlyAccess
The AliyunMaxComputeReadOnlyAccess policy: Provides read-only access to MaxCompute via Management Console. It can be attached to RAM identities.
Service role policies
AliyunODPSPAIRolePolicy
The AliyunODPSPAIRolePolicy policy is the dedicated authorization policy of the AliyunODPSPAIDefaultRole service role. By default, The policy for AliyunODPSPAIDefaultRole. Do not attach this policy to a RAM identity other than the service role. If a service provides precise authorization capabilities, refer to the documentation provided by the service.
Service-linked role policies
AliyunServiceRolePolicyForMaxComputeIdentityMgmt
MaxCompute assumes the AliyunServiceRolePolicyForMaxComputeIdentityMgmt service-linked role to access the resources in other cloud services. The AliyunServiceRolePolicyForMaxComputeIdentityMgmt policy is the dedicated authorization policy of the AliyunServiceRoleForMaxComputeIdentityMgmt service-linked role. This policy is defined and used by MaxCompute. You cannot modify or delete the policy. Do not attach this policy to a RAM identity other than the service-linked role.
AliyunServiceRolePolicyForMaxComputeIdentityMgmt
AliyunServiceRolePolicyForMaxComputeImageMgmt
MaxCompute assumes the AliyunServiceRolePolicyForMaxComputeImageMgmt service-linked role to access the resources in other cloud services. The AliyunServiceRolePolicyForMaxComputeImageMgmt policy is the dedicated authorization policy of the AliyunServiceRoleForMaxComputeImageMgmt service-linked role. This policy is defined and used by MaxCompute. You cannot modify or delete the policy. Do not attach this policy to a RAM identity other than the service-linked role.
AliyunServiceRolePolicyForMaxComputeImageMgmt
AliyunServiceRolePolicyForMaxComputeLakehouse
MaxCompute assumes the AliyunServiceRolePolicyForMaxComputeLakehouse service-linked role to access the resources in other cloud services. The AliyunServiceRolePolicyForMaxComputeLakehouse policy is the dedicated authorization policy of the AliyunServiceRoleForMaxComputeLakehouse service-linked role. This policy is defined and used by MaxCompute. You cannot modify or delete the policy. Do not attach this policy to a RAM identity other than the service-linked role.
AliyunServiceRolePolicyForMaxComputeLakehouse
AliyunServiceRolePolicyForMaxComputeMMS
MaxCompute assumes the AliyunServiceRolePolicyForMaxComputeMMS service-linked role to access the resources in other cloud services. The AliyunServiceRolePolicyForMaxComputeMMS policy is the dedicated authorization policy of the AliyunServiceRoleForMaxComputeMMS service-linked role. This policy is defined and used by MaxCompute. You cannot modify or delete the policy. Do not attach this policy to a RAM identity other than the service-linked role.
AliyunServiceRolePolicyForMaxComputeMMS
AliyunServiceRolePolicyForMaxComputeNetwork
MaxCompute assumes the AliyunServiceRolePolicyForMaxComputeNetwork service-linked role to access the resources in other cloud services. The AliyunServiceRolePolicyForMaxComputeNetwork policy is the dedicated authorization policy of the AliyunServiceRoleForMaxComputeNetwork service-linked role. This policy is defined and used by MaxCompute. You cannot modify or delete the policy. Do not attach this policy to a RAM identity other than the service-linked role.
AliyunServiceRolePolicyForMaxComputeNetwork
AliyunServiceRolePolicyForMaxComputeNotebook
MaxCompute assumes the AliyunServiceRolePolicyForMaxComputeNotebook service-linked role to access the resources in other cloud services. The AliyunServiceRolePolicyForMaxComputeNotebook policy is the dedicated authorization policy of the AliyunServiceRoleForMaxComputeNotebook service-linked role. This policy is defined and used by MaxCompute. You cannot modify or delete the policy. Do not attach this policy to a RAM identity other than the service-linked role.
AliyunServiceRolePolicyForMaxComputeNotebook
AliyunServiceRolePolicyForMaxComputeOpenLake
MaxCompute assumes the AliyunServiceRolePolicyForMaxComputeOpenLake service-linked role to access the resources in other cloud services. The AliyunServiceRolePolicyForMaxComputeOpenLake policy is the dedicated authorization policy of the AliyunServiceRoleForMaxComputeOpenLake service-linked role. This policy is defined and used by MaxCompute. You cannot modify or delete the policy. Do not attach this policy to a RAM identity other than the service-linked role.
AliyunServiceRolePolicyForMaxComputeOpenLake
AliyunServiceRolePolicyForOdpsMMS
MaxCompute assumes the AliyunServiceRolePolicyForOdpsMMS service-linked role to access the resources in other cloud services. The AliyunServiceRolePolicyForOdpsMMS policy is the dedicated authorization policy of the AliyunServiceRoleForOdpsMMS service-linked role. This policy is defined and used by MaxCompute. You cannot modify or delete the policy. Do not attach this policy to a RAM identity other than the service-linked role.
AliyunServiceRolePolicyForOdpsMMS
AliyunServiceRolePolicyForOdpsUserMgmt
MaxCompute assumes the AliyunServiceRolePolicyForOdpsUserMgmt service-linked role to access the resources in other cloud services. The AliyunServiceRolePolicyForOdpsUserMgmt policy is the dedicated authorization policy of the AliyunServiceRoleForOdpsUserMgmt service-linked role. This policy is defined and used by MaxCompute. You cannot modify or delete the policy. Do not attach this policy to a RAM identity other than the service-linked role.
References
By default, RAM identities do not have any permissions. RAM identities can access cloud resources within an Alibaba Cloud account only after an account administrator grants the required permissions to the RAM identities. To ensure resource security, we recommend that you grant only the required permissions to the RAM identities based on the principle of least privilege. For more information, see the following topics: