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https://issues.apache.org/jira/browse/CASSANDRA-21546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18101331#comment-18101331
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Stefan Miklosovic commented on CASSANDRA-21546:
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The "problem" I have with the current PR here (1) is that there in a new
interface added - \{{IDefaultRoleInitializer}} - okay, but when one looks at
how it is implemented, it is just "glued" together directly into
CassandraRoleManager. What I want to say is that I think it should be done in
such a way that {{IRoleManager}} is somehow already aware of this and an
implementator of a {{IRoleManager}} has to somehow take into account what kind
of {{IDefaultRoleInitializer}} it will work with / accept.
As of now, if somebody has a custom {{IRoleManager}} which is set in
cassandra.yaml and we introduce this feature, then {{IDefaultRoleInitializer}}
will be effectively not used at all until somebody glues it together as it was
done in CassandraRoleManager-alike implementation.
In my opinion it should be done in such a way that custom implementations will
naturally integrate this new capability into their implementations, if I do not
look into this ticket and how IDefaultRoleInitializer was added I would never
know that there is such a thing I might integrate.
(1) https://github.com/apache/cassandra/pull/4990
> Support pluggable default role initialization (avoid hardcoded superuser
> password)
> ----------------------------------------------------------------------------------
>
> Key: CASSANDRA-21546
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21546
> Project: Apache Cassandra
> Issue Type: Bug
> Reporter: Aparna Naik
> Assignee: Aparna Naik
> Priority: Normal
>
> Cassandra's first-boot bootstrap hardcodes the creation of a cassandra
> superuser role with a default password (cassandra). Every new cluster starts
> with this guessable credential exposed until an operator manually rotates or
> drops it, and deployments that already use mutual TLS have no way to
> bootstrap a superuser identity without also creating this password-based one.
> This ticket will make the default role bootstrap pluggable via a new
> IDefaultRoleInitializer interface and default_role_initializer config option.
> The existing password-based behavior will be the default implementation for
> backward compatibility, and it will add a MutualTlsDefaultRoleInitializer
> that instead maps a client certificate identity to the superuser role, so no
> password credential needs to exist at all.
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