tooz doesn't configure api_path for etcd3gw driver

[Manojkatari]

etcd3gw driver supports configuring api_path which is the endpoint to communicate with etcd.

As the default api_path(/v3alpha) in etcd3gw driver is not supported by latest etcd versions(eg: 3.4.x), it results in errors like [1] in cinder_volume container.

So, tooz should configure correct api_path needed for the corresponding etcd version.

ref: https://github.com/dims/etcd3-gateway/issues/41#issuecomment-673558108

[1] ERROR oslo_service.service [-] Error starting thread.: etcd3gw.exceptions.Etcd3Exception: Not Found

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/tooz/+/827492
Committed: https://opendev.org/openstack/tooz/commit/b64623daeb9e0f94fd5322a1c7e47403f187e7ed
Submitter: "Zuul (22348)"
Branch: master

commit b64623daeb9e0f94fd5322a1c7e47403f187e7ed
Author: Pavlo Shchelokovskyy <email address hidden>
Date: Wed Feb 2 15:06:27 2022 +0200

    Support etcd3gw api version

    since etcd3 3.5 dropped support for v3alpha and v3beta api, replacing
    those with v3.

    etcd3gw library supports passing api_path (v3alpha by default), but tooz
    lacks such possibility and thus can not work with etcd3 3.5.

    This patch adds handling of "api_version" in the options to
    "ectd3+https" connection URLs (defaults to v3alpha as it is today and
    corresponds to etcd3 version shipped in major LTS distros at the
    moment).

    Closes-Bug: #1983668
    Depends-On: I49c480f573a4ba8294627a3ce730b816ded10aed
    Change-Id: Ib30c1e003f261cd7e1ac6fed87167f9974bf8542

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/puppet-tripleo/+/852368
Committed: https://opendev.org/openstack/puppet-tripleo/commit/ecda0e14213d82e337c0a81def19565bee460d1d
Submitter: "Zuul (22348)"
Branch: master

commit ecda0e14213d82e337c0a81def19565bee460d1d
Author: katarimanoj <email address hidden>
Date: Tue Aug 9 13:52:43 2022 +0530

    Add etcd3gw api_version to cinder backend_url

    tooz etcd3gw driver makes use of api_version in backend_url from cinder.conf

    api_version specifies the endpoint used for communication between etcd3gw and
    Etcd service.

    This patch ensures that the correct api_version is passed to tooz to
    implement Etcd <-> etcd3gw compatibility as shown below.

      EtcdV3.4 (el9) supports /v3/
      EtcdV3.2 (el8) supports /v3aplha/

    Depends-On: Ib30c1e003f261cd7e1ac6fed87167f9974bf8542
    Closes-Bug: 1983668
    Change-Id: I8f00c1b4299743e2ad21b25b6a1aeddca6edfd34

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tooz 3.1.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/puppet-tripleo 17.0.0 release.