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Authorizing Sub-account with Role Assuming Policy

Last updated: 2024-01-23 17:52:00
A root account as the entity of a role can allow its sub-accounts to assume the role. The following example shows how to create and assign policies for role assumption.
For example, Company A wants to outsource its OPS Engineer position to Company B. The person taking the position needs the access to all Company A’s CVM resources located in the Guangzhou region.
Company A’s enterprise account CompanyExampleA (ownerUin: 12345) creates a role with the CreateRole API. The entity and name of the role are set to Company B's enterprise account CompanyExampleB (ownerUin: 67890) and DevOpsRole respectively. CompanyExampleA adds permissions to DevOpsRole. For more information, see Creating roles > Creating via APIs.
After being granted the role, Company B's enterprise account (CompanyExampleB) wants its sub-account, DevB, to perform the job. CompanyExampleB needs to authorize DevB to assume the DevOpsRole role.
1. Create a policy, AssumeRole, as follows:
"version": "2.0",
"statement": [
"effect": "allow",
"action": ["name/sts:AssumeRole"],
"resource": ["qcs::cam::uin/12345:roleName/DevOpsRole"]
2. Associate the policy with the sub-account DevB. The sub-account is now granted permissions to assume the DevOpsRole role.
3. For more information on how a sub-account can use a role after being granted the permissions, see Using roles.
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