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MinIO Admin Multi-user Quickstart Guide 
MinIO supports multiple admin users in addition to default operator credential created during server startup. New admins can be added after server starts up, and server can be configured to deny or allow access to different admin operations for these users. This document explains how to add/remove admin users and modify their access rights.
Get started
In this document we will explain in detail on how to configure admin users.
1. Prerequisites
- Install mc - MinIO Client Quickstart Guide
- Install MinIO - MinIO Quickstart Guide
2. Create a new admin user with CreateUser, DeleteUser and ConfigUpdate permissions
Use mc admin policy to create custom admin policies.
Create new canned policy file adminManageUser.json. This policy enables admin user to
manage other users.
cat > adminManageUser.json << EOF
{
"Version": "2012-10-17",
"Statement": [
{
"Action": [
"admin:CreateUser",
"admin:DeleteUser",
"admin:ConfigUpdate"
],
"Effect": "Allow",
"Sid": ""
},
{
"Action": [
"s3:*"
],
"Effect": "Allow",
"Resource": [
"arn:aws:s3:::*"
],
"Sid": ""
}
]
}
EOF
Create new canned policy by name userManager using userManager.json policy file.
mc admin policy add myminio userManager adminManageUser.json
Create a new admin user admin1 on MinIO use mc admin user.
mc admin user add myminio admin1 admin123
Once the user is successfully created you can now apply the userManage policy for this user.
mc admin policy set myminio userManager user=admin1
This admin user will then be allowed to perform create/delete user operations via mc admin user
3. Configure mc and create another user user1 with attached policy user1policy
mc config host add myminio-admin1 http://localhost:9000 admin1 admin123 --api s3v4
mc admin user add myminio-admin1 user1 user123
mc admin policy add myminio-admin1 user1policy ~/user1policy.json
mc admin policy set myminio-admin1 user1policy user=user1
4. List of permissions defined for admin operations
Config management permissions
- admin:ConfigUpdate
User management permissions
- admin:CreateUser
- admin:DeleteUser
- admin:ListUsers
- admin:EnableUser
- admin:DisableUser
- admin:GetUser
Service management permissions
- admin:ServerInfo
- admin:ServerUpdate
- admin:StorageInfo
- admin:DataUsageInfo
- admin:TopLocks
- admin:OBDInfo
- admin:Profiling,
- admin:ServerTrace
- admin:ConsoleLog
- admin:KMSKeyStatus
User/Group management permissions
- admin:AddUserToGroup
- admin:RemoveUserFromGroup
- admin:GetGroup
- admin:ListGroups
- admin:EnableGroup
- admin:DisableGroup
Policy management permissions
- admin:CreatePolicy
- admin:DeletePolicy
- admin:GetPolicy
- admin:AttachUserOrGroupPolicy
- admin:ListUserPolicies
Give full admin permissions
- admin:*
5. Using an external IDP for admin users
Admin users can also be externally managed by an IDP by configuring admin policy with special permissions listed above. Follow MinIO STS Quickstart Guide to manage users with an IDP.