New control node is not added to etcd cluster (ZUN/KURYR)

[ICT]

Hi,

I'm running kolla-ansible version 14.8.1 on a YOGA cluster with ZUN enalbed. When adding a new control node, it is not added to the etcd cluster. In my test environment I have 3 control nodes:

control01-03

I added a new control node control04 and afterwards I removed control03 following the official kolla-ansible guide https://docs.openstack.org/kolla-ansible/yoga/user/adding-and-removing-hosts.html. I would have expected that the new control node control04 is joined to the etcd cluster but that it not the case:

(etcd)[etcd@control01 /]$ etcdctl -C http://192.168.20.142:2379 cluster-health
failed to check the health of member c6e74a554ab6931 on http://192.168.20.143:2379: Get http://192.168.20.143:2379/health: dial tcp 192.168.20.143:2379: connect: connection refused
member c6e74a554ab6931 is unreachable: [http://192.168.20.143:2379] are all unreachable
member 52148ade03e00536 is healthy: got healthy result from http://192.168.20.142:2379
member e4fbe16b914befd2 is healthy: got healthy result from http://192.168.20.141:2379
cluster is healthy

Maybe this is intended but I think the new control node should be joined to the cluster.

Cheers,
Oliver

**Environment**:
* OS (e.g. from /etc/os-release):

NAME="CentOS Stream"
VERSION="8"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="8"
PLATFORM_ID="platform:el8"
PRETTY_NAME="CentOS Stream 8"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:8"
HOME_URL="https://centos.org/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux 8"
REDHAT_SUPPORT_PRODUCT_VERSION="CentOS Stream"

* Kernel (e.g. `uname -a`):

Linux control01 4.18.0-425.10.1.el8_7.x86_64 #1 SMP Thu Jan 12 16:32:13 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

* Docker version if applicable (e.g. `docker version`):

Docker version 23.0.4, build f480fb1

* Kolla-Ansible version (e.g. `git head or tag or stable branch` or pip package version if using release):

14.8.1

* Docker image Install type (source/binary):

source

* Docker image distribution:

kolla_base_distro: "centos"

* Are you using official images from Docker Hub or self built?

official