I’m proposing that we deprecate the etcd3 driver

I will include the commit message below that describes the situation with the

dependency the driver has on the python-etcd3 library.

Please let me know what you think about this action, we

would also like to know if you are using the driver.

Best regards

Tobias

———

Author: Tobias Urdin <tobias.urdin@binero.se>
Date:   Thu Mar 10 15:09:58 2022 +0000

    Deprecate the etcd3 driver
    
    The etcd3 driver depends on the python-etcd3 [1]
    library that is currently stale and no has no
    active maintenance [2] with a non-working CI
    that blocks all PRs.
    
    It's also currently blocking Tooz from supporting
    newer versions of tenacity [3] that a lot of
    projects is now pinning because newer version of
    tenacity dropped old legacy compatibility code
    that has been in there for years.
    
    We currently have etcd3gw as an alternative driver
    where the library the driver depends on is a
    deliverable that we maintain.
    
    [1] https://github.com/kragniz/python-etcd3
    [2] https://github.com/kragniz/python-etcd3/issues/1719
    [3] https://review.opendev.org/c/openstack/tooz/+/829412
    
    Change-Id: Iff0cd3b51cfc45ecbddc831c55267e80e9c79cac