This grabs the rancher server logs from the pods running and tars them

get_rancher_logs.sh

#!/bin/sh
now=`date +%Y-%m-%d-%H-%M-%S`
for i in $(kubectl get po -n cattle-system | grep "rancher" | awk '{print $1}'); do
echo "Collecting Rancher Logs from: $i"
kubectl logs $i -n cattle-system > cs-$i-$now.log;
done

tar -zcvf rancher-logs-$now.tar.gz cs-*.log