Collect pprof for Rancher in K8s

collect.sh

#!/bin/sh
for pod in $(kubectl get pods --no-headers -l app=rancher -n cattle-system | cut -d ' ' -f1); do
  echo Collecting pprof information for $pod - this will take some time.
  kubectl -n cattle-system exec $pod -c rancher -- curl -s http://localhost:6060/debug/pprof/profile -o profile;
  kubectl -n cattle-system cp $pod:profile pprof-$pod-profile -c rancher;
  kubectl -n cattle-system exec $pod -c rancher -- curl -s http://localhost:6060/debug/pprof/goroutine -o goroutine;
  kubectl -n cattle-system cp $pod:goroutine pprof-$pod-goroutine -c rancher;
  kubectl -n cattle-system exec $pod -c rancher -- curl -s http://localhost:6060/debug/pprof/heap -o heap;
  kubectl -n cattle-system cp $pod:heap pprof-$pod-heap -c rancher;
  kubectl -n cattle-system exec $pod -c rancher -- curl -s http://localhost:6060/debug/pprof/threadcreate -o threadcreate;
  kubectl -n cattle-system cp $pod:threadcreate pprof-$pod-threadcreate -c rancher;
  kubectl -n cattle-system exec $pod -c rancher -- curl -s http://localhost:6060/debug/pprof/block -o block;
  kubectl -n cattle-system cp $pod:block pprof-$pod-block -c rancher;
  kubectl -n cattle-system exec $pod -c rancher -- curl -s http://localhost:6060/debug/pprof/mutex -o mutex;
  kubectl -n cattle-system cp $pod:mutex pprof-$pod-mutex -c rancher;
  echo Collection of pprof information for $pod complete
done