Updated on 2025-08-19 GMT+08:00

MgC Permissions

If you need to assign different permissions to employees in your enterprise to access your MgC resources, IAM is a good choice for fine-grained permissions management. IAM provides identity authentication, permissions management, and access control. It makes it easier to secure access to your resources.

With IAM, you can use your account to create IAM users, and assign permissions to the users to control their access to specific resources. For example, you can create IAM users for software developers and grant them the permissions required for using MgC resources but not the permissions needed for performing any other operations.

If your account does not require individual IAM users for permissions management, you can skip this section.

IAM is a free service. You only pay for the resources in your account. For more information about IAM, see IAM Service Overview.

MgC Permissions

By default, new IAM users do not have any permissions assigned. You need to add a user to one or more groups, and attach permissions policies or roles to these groups. Users inherit permissions from the groups they have been added to and can then perform specified operations on cloud services.

You can grant permissions using roles and policies.
  • Roles: A coarse-grained authorization method where you assign permissions based on user responsibilities. Only a limited number of service-level roles are available for authorization. When using roles to grant permissions, you must also assign other roles that the permissions may depend on. Roles are not ideal for fine-grained authorization and access control.
  • Policies: A fine-grained authorization tool that defines permissions for operations on specific cloud resources under certain conditions. This type of authorization is more flexible and is ideal for maintaining the principle of least privilege.
Table 1 lists all the system-defined policies supported by MgC.
Table 1 System-defined policies supported by MgC

Policy Name

Description

Policy Type

Policy Content

MgC FullAccess

Administrator permissions for MgC. Users with these permissions can perform all operations on MgC.

System-defined policies

MgC FullAccess Policy Content

MgC ReadOnlyAccess

Read-only permissions for MgC. Users with these permissions can only view MgC resources.

System-defined policies

MgC ReadOnlyAccess Policy Content

MgC DiscoveryAccess

Permissions for resource discovery with MgC. Users with these permissions can use the resource discovery function of MgC and view MgC resources.

System-defined policies

MgC DiscoveryAccess Policy Content

MgC AssessAccess

Permissions for application assessment with MgC. Users with these permissions can use the resource discovery and application assessment functions of MgC and view MgC resources.

System-defined policies

MgC AssessAccess Policy Content

MgC MigrateAccess

Permissions for application migration with MgC. Users with these permissions can use the resource discovery, application assessment, and application migration functions of MgC and view MgC resources.

System-defined policies

MgC MigrateAccess Policy Content

MgC AppDiscoveryAccess

Permissions for resource discovery with MgC. Users with these permissions can use the resource discovery and data collection functions of MgC and view MgC resources.

System-defined policies

MgC AppDiscoveryAccess Policy Content

MgC MrrAccess

Permissions for service verification with MgC. Users with these permissions can use the service verification function of MgC and view MgC resources.

System-defined policies

MgC MrrAccess Policy Content

MgC AZ MigrateAccess

Permissions for cross-AZ migration with MgC

System-defined policies

MgC AZ MigrateAccess Policy Content

Table 2 lists the common operations supported by each system-defined policy of MgC. Select the policies as required. For details, see Creating a User and Granting Permissions.
Table 2 Common operations supported by each MgC system-defined policy

Operation

MgC

FullAccess

MgC ReadOnlyAccess

MgC DiscoveryAccess

MgC

AssessAccesss

MgC

MigrateAccess

MgC AppDiscoveryAccess

Performing operations on MgC resources

x

x

x

x

x

Viewing MgC resources

Discovering resources using MgC

x

Designing migration plans on MgC

x

x

x

Performing operations on migration workflows

x

x

x

x

Collecting resource details using MgC

x

x

x

x