debugkubernetes

#!/bin/bash

#acr=mcr.microsoft.com/dotnet/runtime-deps:6.0
acr=smartaquarius10/kubelogin:latest
namespace=default

cleanup() {
   if [ -n "$debugpod" ]; then
       debugpod=$(kubectl get pods -n $namespace | awk '{print $1}' | grep "node-debugger-$debugpod")
       kubectl delete pod $debugpod -n $namespace
   fi
}

# Set traps
trap 'handle_exit' SIGINT
trap 'cleanup' EXIT

handle_exit() {
    # Reset the EXIT trap to prevent cleanup from running again
    trap - EXIT
    cleanup
    exit 0
}


echo
echo "Login into nodes"
echo

# Get node names
names=$(kubectl get nodes -o name)

# Count the number of nodes
node_count=$(echo "$names" | wc -l)

# Set the height for fzf dynamically based on the number of nodes
fzf_height=$((node_count > 10 ? 20 : node_count))

# Use fzf to select a node name
selected_node=$(echo "$names" | fzf --height $fzf_height --border --prompt="Select a node: ")

if [[ -z "$selected_node" ]]; then
  echo "No node selected. Exiting..."
  exit 1
fi

# Remove "node/" prefix from the selected node
debugpod=$(echo $selected_node | sed "s/node\///")

# Debug the selected node
kubectl debug $selected_node -it -n $namespace --image=$acr