ExternalDNS and node failover

[dberardo-com]

hi there,

i was trying digging in the doc but i could not find any "documentation" page or anything of the kind from this github project, so please excuse me if i am being redundant here.

I would like to setup a DNS record failover when one of the "entrypoint node" of the k8s cluster goes down. Can externalDNS be configured in such a way that an existing DNS record is updated when the underlying IP/node goes down? This way one does not have to necessarily opt for Route53 as a vendor.

Let's discuss also any "workaround" in case,

---

also, by extention: is it possible to use multiple DNS endpoints to contact in case the primary DNS goes down ?

[dberardo-com]

Basically i am trying to figure out if externalDNS could be used as a single-cluster GSLB solution, on the lines of:

• https://github.com/polaris-gslb/polaris-gslb
• https://www.k8gb.io/docs/

any hint?

[schnidrig]

[dberardo-com]

ref: #3018 (comment)