István Fajth created HDDS-7393:
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             Summary: Root CA certificate revocation
                 Key: HDDS-7393
                 URL: https://issues.apache.org/jira/browse/HDDS-7393
             Project: Apache Ozone
          Issue Type: Sub-task
            Reporter: István Fajth
            Assignee: István Fajth


Revoking the root CA certificate effectively means the system has to re-create 
all certificates used internally, and with that it is a tedious process.

Prerequisite for this task is to have all the certificate rotation logic 
implemented, but in case of revocation we need to do the process in an 
expedited way within just a few hours tops without causing impacts to the 
service.

The procedure should involve a few things:
- at start a new root CA certificate has to be created, and similarly as when 
the root CA certificate is being rotated, new subordinate CA certificates have 
to be created and rotated in
- as the next step all certificates in the system has to be revoked, and 
renewed during the default grace period within which the certificates are 
renewed after revocation
- once all the certificates are renewed, the old subordinate CA certificates 
and the rootCA certificate has to be revoked as well
- once the services notice the revocation of the old rootCA certificate, the 
old rootCA certificate has to be removed from the trust stores of active and to 
be created connections



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