#!/usr/bin/env bash

# bastion-connector.sh
# Simple helper to SSH into private VPC hosts via a bastion jump server.

# Usage:
#   ./bastion-connector.sh <TARGET_PRIVATE_IP> [USERNAME]
#
# Example:
#   ./bastion-connector.sh 10.15.3.42 ubuntu
#   ./bastion-connector.sh 10.15.7.10 root

# --- Configurable Variables ---
BASTION_HOST="bastion.vpc.example.com"  # Change to your real bastion hostname/IP
TARGET_IP="$1"
TARGET_USER="${2:-ubuntu}"   # Default username if not provided

# --- Validation ---
if [ -z "$TARGET_IP" ]; then
  echo "Usage: $0 <TARGET_PRIVATE_IP> [USERNAME]"
  exit 1
fi

echo "🔌 Connecting to $TARGET_IP via bastion $BASTION_HOST ..."
ssh -J "$TARGET_USER@$BASTION_HOST" "$TARGET_USER@$TARGET_IP"