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MinIO - Bind a user to one bucket policy (lmy.mymte.de)

submitted 1 year ago by [email protected] to c/[email protected]

3 comments fedilink hide all child comments

I was looking a long time for a policy which binds a user to a bucket. The docs are not very helpful for beginners, but I talked with an advanced user and he said it is okay to share his solution, since he is not on Lemmy

Create a new policy and fill this in:

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:*"
            ],
            "Resource": [
                "arn:aws:s3:::${aws:username}"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "s3:*"
            ],
            "Resource": [
                "arn:aws:s3:::${aws:username}/*"
            ]
        }
    ]
}

If you now create a user, just assign the user to only this policy, nothing more. The user is now allowed to create a bucket with the same name as the users. So a user Alex can only create the bucket alex and has complete access to it. The user won't see other users buckets.

All credits belongs to the very helpful person, not me ☝🏻☺️

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[–] [email protected] 1 points 1 year ago (1 children)

Cool, this way you could have a private store for each user. I wonder if you could also use this for roles and federated signups somehow. Also maybe you can enable primitive sharing if you use wildcards on both sides.

[–] [email protected] 2 points 1 year ago

Yes each user can have a private bucket and only this one. I am not this much into policies and I was lucky to get this template.

Maybe it gives you an idea how to modify it for your needs. If you found a solution, please share ☺️