Description of problem:
Currently, the containerized etcd use same etcd configure file as etc packages.  once the rpm etcd locate in same hosts,  when we remove the etcd packages, the etcd.conf file will be renamed as  etcd.conf.rpmsave.  It is better to use different etcd.conf with rpm etcd packages.



/usr/bin/docker run --name etcd_container --rm -v /var/lib/etcd:/var/lib/etcd:z -v /etc/etcd:/etc/etcd:z --env-file=/etc/etcd/etcd.conf


Version-Release number of selected component (if applicable):


How reproducible:
always

Steps to Reproduce:
1. install OCP 3.4  with containerized etcd.
2. yum install etcd, yum erase etcd
3. check the /etc/etcd/etcd.conf

Actual results:
The /etc/etcd/etcd.conf was renamed to  /etc/etcd/etcd.conf.rpmsave by 'yum erase etcd'

Expected results:


Additional info: