[
    {
        "username": "bob",
        "password": "secret1",
        "perms": [
            "all"
        ]
    },
    {
        "username": "mary",
        "password": "secret2",
        "perms": [
            "query",
            "backup",
            "join"
        ]
    },
    {
        "username": "*",
        "perms": [
            "status",
            "ready",
            "join-read-only"
        ]
    }
]