feat: add diagnostic and health check scripts

- Add comprehensive health check script
- Add connection issue diagnostic script
- Improve health check reliability
- Better error handling and reporting

scripts/fix-connection.sh

@@ -0,0 +1,138 @@
+#!/bin/bash
+
+# Fix Connection Issues Script
+# This script diagnoses and fixes common connection issues
+
+set -e
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+log() {
+    echo -e "${BLUE}[$(date +'%Y-%m-%d %H:%M:%S')]${NC} $1"
+}
+
+error() {
+    echo -e "${RED}[ERROR]${NC} $1" >&2
+}
+
+success() {
+    echo -e "${GREEN}[SUCCESS]${NC} $1"
+}
+
+warning() {
+    echo -e "${YELLOW}[WARNING]${NC} $1"
+}
+
+log "🔧 Diagnosing and fixing connection issues..."
+
+# Check if containers are running
+if ! docker ps | grep -q portfolio-app; then
+    error "Portfolio app container is not running"
+    log "Starting containers..."
+    docker-compose up -d
+    sleep 30
+fi
+
+# Check container logs for errors
+log "📋 Checking container logs for errors..."
+if docker logs portfolio-app --tail 20 | grep -i error; then
+    warning "Found errors in application logs"
+    docker logs portfolio-app --tail 50
+fi
+
+# Check if port 3000 is accessible
+log "🔍 Checking port 3000 accessibility..."
+
+# Method 1: Check from inside container
+log "Testing from inside container..."
+if docker exec portfolio-app curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
+    success "Application responds from inside container"
+else
+    error "Application not responding from inside container"
+    docker logs portfolio-app --tail 20
+fi
+
+# Method 2: Check port binding
+log "Checking port binding..."
+if docker port portfolio-app 3000; then
+    success "Port 3000 is properly bound"
+else
+    error "Port 3000 is not bound"
+fi
+
+# Method 3: Check if application is listening
+log "Checking if application is listening..."
+if docker exec portfolio-app netstat -tlnp | grep -q ":3000"; then
+    success "Application is listening on port 3000"
+else
+    error "Application is not listening on port 3000"
+    docker exec portfolio-app netstat -tlnp
+fi
+
+# Method 4: Try external connection
+log "Testing external connection..."
+if timeout 5 curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
+    success "External connection successful"
+else
+    warning "External connection failed - this might be normal if behind reverse proxy"
+    
+    # Check if there's a reverse proxy running
+    if netstat -tlnp | grep -q ":80\|:443"; then
+        log "Reverse proxy detected - this is expected behavior"
+        success "Application is running behind reverse proxy"
+    else
+        error "No reverse proxy detected and external connection failed"
+        
+        # Try to restart the container
+        log "Attempting to restart portfolio container..."
+        docker restart portfolio-app
+        sleep 10
+        
+        if timeout 5 curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
+            success "External connection successful after restart"
+        else
+            error "External connection still failing after restart"
+        fi
+    fi
+fi
+
+# Check network configuration
+log "🌐 Checking network configuration..."
+docker network ls | grep portfolio || {
+    warning "Portfolio network not found"
+    log "Creating portfolio network..."
+    docker network create portfolio_net
+}
+
+# Check if containers are on the right network
+if docker inspect portfolio-app | grep -q portfolio_net; then
+    success "Container is on portfolio network"
+else
+    warning "Container might not be on portfolio network"
+fi
+
+# Final verification
+log "🔍 Final verification..."
+if docker exec portfolio-app curl -f http://localhost:3000/api/health > /dev/null 2>&1; then
+    success "✅ Application is healthy and responding"
+    
+    # Show final status
+    log "📊 Final container status:"
+    docker ps --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}" | grep portfolio
+    
+    log "🌐 Application endpoints:"
+    log "  - Health: http://localhost:3000/api/health"
+    log "  - Main: http://localhost:3000/"
+    log "  - Admin: http://localhost:3000/manage"
+    
+    success "🎉 Connection issues resolved!"
+else
+    error "❌ Application is still not responding"
+    log "Please check the logs: docker logs portfolio-app"
+    exit 1
+fi