Installs and opens the Kubernetes dashboard using the recommended Quickstart settings.

k8s_dash

#!/bin/bash

# Function to check if Kubernetes Dashboard is installed
function is_dashboard_installed {
  kubectl get services --namespace=kubernetes-dashboard | grep kubernetes-dashboard >/dev/null 2>&1
  return $?
}

# Function to check if Service Account and ClusterRoleBinding are installed
function is_user_installed {
  kubectl get serviceaccounts admin-user -n kubernetes-dashboard >/dev/null 2>&1 &&
    kubectl get clusterrolebinding admin-user >/dev/null 2>&1
  return $?
}

# Function to install Kubernetes Dashboard
function install_dashboard {
  kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.7.0/aio/deploy/recommended.yaml
}

# Function to create a Service Account and ClusterRoleBinding
function create_user {
  cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin-user
  namespace: kubernetes-dashboard
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: admin-user
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: admin-user
  namespace: kubernetes-dashboard
EOF
}

# Function to start proxy and open Kubernetes Dashboard
function start_proxy {
  echo "🚀 Starting kubectl proxy..."
  kubectl proxy >/dev/null 2>&1 &
  PROXY_PID=$!
  echo "🎉 Proxy started with PID: $PROXY_PID. Dashboard is available at http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/."
}

# Function to print the token for login
function print_token {
  token=$(kubectl -n kubernetes-dashboard create token admin-user)

  # if pbcopy installed, use it
  if [ -x "$(command -v pbcopy)" ]; then
    echo $token | pbcopy >/dev/null 2>&1
    echo "📋 Token copied to clipboard."
  fi

  echo "🔐 Login with:
$token"
}

# Check if Kubernetes Dashboard is installed
if is_dashboard_installed; then
  echo "👍 Kubernetes Dashboard is already installed."
else
  echo "⚙️  Kubernetes Dashboard is not installed. Installing..."
  install_dashboard
  echo "✅ Kubernetes Dashboard installed."
fi

# Check if Service Account and ClusterRoleBinding are installed
if is_user_installed; then
  echo "👍 Service Account and ClusterRoleBinding are already installed."
else
  echo "⚙️  Service Account and ClusterRoleBinding are not installed. Creating..."
  create_user
  echo "✅ Service Account and ClusterRoleBinding created."
fi

# Print the token for login
print_token

# Start proxy and open Kubernetes Dashboard
start_proxy

# Kill the kubectl proxy process when the script exits
trap "kill $PROXY_PID" EXIT

# Open the proxy if user presses enter
read -p "Press enter to open Kubernetes Dashboard..." -n 1 -r
echo "🌐 Opening Kubernetes Dashboard..."
open http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/

# Wait for the proxy process to exit
wait