shell into k8s pods

gistfile1.txt

Here’s a bash function to make it easier to shell into kubernetes pods. Running `kubash` by itself will give you a list of pod names; 

$ kubash <pod name # will open a bash shell on a pod with that name. It works via prefix matching so any of the following would work:
$ kubash railsapp-68b45f5c7b-98qqz #attach to this specific pod
$ kubash railsapp                  #attach to any railsapp-* pod
$ kubash ra                        #attach to some pod that starts with "ra"

/bin/kubash
kubash() {
  if [ "$1" = "" ]; then
      echo `kubectl config view --minify --output 'jsonpath={"context:"} {.current-context}{", namespace:"} {..namespace}'`
      kubectl get pods | awk '{print $1}' | grep -v 'NAME' | sed -E 's/(-[a-z0-9]+){2}$//' | sort | uniq
  else
      kubectl exec -it $(kubectl get pods | grep -E "^$1.*Running" | awk '{print $1}') /bin/bash
  fi
}