Simple tmux session setup for working with multiple kubernetes clusters

ktmux.sh

#!/usr/bin/env bash

# This simple script simplifies working with multiple Kubernetes clusters
# Call it with a path to a kubeconfig.yaml as input and it will create
# a new tmux window with 2 panes, one for k9s and one for a shell

KUBECONFIG=$(readlink -f $1)

SESSIONNAME=kube
WINDOWNAME=$(basename -s .yaml $KUBECONFIG)

if [[ $(tmux has -t $SESSIONNAME 2>/dev/null) != 0 ]]; then
	 tmux new-session -d -s $SESSIONNAME
fi 

tmux neww -b -t $SESSIONNAME:1 -n $WINDOWNAME -e "KUBECONFIG=$KUBECONFIG" k9s
tmux splitw -v -l 20% -e "KUBECONFIG=$KUBECONFIG" 
tmux kill-window -t $SESSIONNAME:0
tmux attach -t $SESSIONNAME