Spread traefik pods across nodes

[tduncan907]

Total new guy to Kubernetes and HA in general but I ran into a problem when, if I lost a node for updates, it was possible to lose my traefik instance if the scheduler put all three pods on that one node. I inserted these lines at the bottom of the traefik values.yaml file and updated the traefik deployment and now it spreads my three replicas across three different nodes in the cluster. I haven't figured out how to get the pod scheduled on the node I take down to spin back up on a different running node so if you guys have any ideas, that would be awesome!

affinity:
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchLabels:
app.kubernetes.io/name: '{traefik}'
app.kubernetes.io/instance: '{traefik-traefik}'
topologyKey: kubernetes.io/hostname