Comment 4 for bug 1809469

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John Garbutt (johngarbutt) wrote : Re: keystone_fernet container runs token rotate on multiple hosts

Actually it is more complicated, due to:

# This controls the number of seconds that a token can be retrieved for beyond
# the built-in expiry time. This allows long running operations to succeed.
# Defaults to two days. (integer value)
#allow_expired_window = 172800

So we have three days of needing to read the tokens.

In that time we have 9 key rotations with three controllers, plus we want a staging key out there, plus one for wiggle room.