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Minio Multi-user Quickstart Guide

Minio supports multiple long term users in addition to default user created during server startup. New users can be added after server starts up, and server can be configured to deny or allow access to buckets and resources to each of these users. This document explains how to add/remove users and modify their access rights.

Get started

In this document we will explain in detail on how to configure multiple users.

1. Prerequisites

Install mc - Minio Client Quickstart Guide
Install Minio - Minio Quickstart Guide

2. Create a new user with canned policy

Use mc admin policies to create canned policies. Server provides a default set of canned policies namely writeonly, readonly and readwrite (these policies apply to all resources on the server). These can be overridden by custom policies using mc admin policies command.

Create new canned policy file getonly.json. This policy enables users to download all objects under my-bucketname.

cat > getonly.json << EOF
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Action": [
        "s3:GetObject"
      ],
      "Effect": "Allow",
      "Resource": [
        "arn:aws:s3:::my-bucketname/*"
      ],
      "Sid": ""
    }
  ]
}
EOF

Create new canned policy by name getonly using getonly.json policy file.

mc admin policies add myminio getonly getonly.json

Create a new user newuser on Minio use mc admin users, specify getonly canned policy for this newuser.

mc admin users add myminio newuser newuser123 getonly

3. Disable user

Disable user newuser.

mc admin users disable myminio newuser

4. Remove user

Remove the user newuser.

mc admin users remove myminio newuser

5. Change user policy

Change the policy for user newuser to putonly canned policy.

mc admin users policy myminio newuser putonly

5. List all users

List all enabled and disabled users.

mc admin users list myminio

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