<p>I looked for and couldn't find any answers to basic questions about GKE:
- if it is managed k8s does that mean etcd used for storing resources is also fully managed
- how updates and backup on etcd is assured
- what are the limits? What if I have 50000 different resources, most coming from my CRDs</p>

<p>Do you know any official resources that I can refer to and be sure this is really this way?</p>

<p>Yes, etcd is managed and all that it comes with it. There aren't very specific limits defined in the official <a href="https://cloud.google.com/kubernetes-engine/quotas" rel="nofollow noreferrer">docs</a> although <code>300,000 containers</code> should give you a pretty rough idea.</p>
<p>If you have any specific needs, for example, hundreds of Deployments, or ConfigMaps, I would contact GCP support with your specific case.</p>
<p>✌️</p>
