Etcd is part of the openshift infrastructure, it is always used to store the openshift system state, so yes it is "there by default."
If you're asking about it being available to end users to run their own instances in a pod (eg like the Mongo or postgres images), no, openshift does not provide an image for that today.
Ben Parees | OpenShift
I found this guide about etcd: https://github.com/openshift/origin/tree/master/examples/etcd
I was searching about etcd because I read it's a key-value store which contains your cluster configuration. It survives hardware failures so it's very interesting. But the issue is that I can't find something about etcd in my cluster (openshift V3 origin on centos7).
Isn't it there by default? You have to set it up manually?
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