Multi Database MCP Server

#!/bin/sh # wait-for-it.sh - Enhanced version for database connection checking # Usage: wait-for-it.sh host port [timeout] set -e host="$1" port="$2" timeout="${3:-30}" if [ -z "$host" ] || [ -z "$port" ]; then echo "Error: Host and port are required arguments" echo "Usage: wait-for-it.sh host port [timeout]" exit 1 fi echo "Waiting for $host:$port to be available..." start_time=$(date +%s) end_time=$((start_time + timeout)) while true; do # Try to establish a TCP connection to the specified host and port if nc -z -w 1 "$host" "$port" 2>/dev/null; then echo "$host:$port is available" exit 0 fi current_time=$(date +%s) remaining=$((end_time - current_time)) if [ $current_time -gt $end_time ]; then echo "ERROR: Timeout waiting for $host:$port to be available after $timeout seconds" echo "Network diagnostics:" echo "Current container IP: $(hostname -I || echo 'Unknown')" echo "Attempting to ping $host:" ping -c 1 -W 1 "$host" || echo "Ping failed" echo "Attempting DNS lookup for $host:" nslookup "$host" || echo "DNS lookup failed" echo "Network interfaces:" ifconfig || ip addr show || echo "Network tools not available" exit 1 fi echo "Waiting for $host:$port to be available... (${remaining}s timeout remaining)" sleep 1 done