Add Dockerfile and CI/CD script for building and pushing Docker images

Dockerfile

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+# Build stage
+FROM node:24-alpine AS builder
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci
+
+# Copy project files
+COPY . .
+
+# Build the application
+RUN npm run build
+
+# Production stage
+FROM nginx:alpine
+
+# Copy built assets from builder stage
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+# Copy nginx configuration (optional - using default)
+# COPY nginx.conf /etc/nginx/nginx.conf
+
+# Expose port 80
+EXPOSE 80
+
+# Start nginx
+CMD ["nginx", "-g", "daemon off;"]

script/ci.sh

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+#!/bin/bash
+
+# CI/CD Script for Docker Build and Push
+# This script builds a Docker image and pushes it to a private container registry
+
+# =============================================================================
+# Environment Variables (with default values)
+# =============================================================================
+CONTAINER_REGISTRY_URL="${CONTAINER_REGISTRY_URL:-127.0.0.1}"
+CONTAINER_REGISTRY_USERNAME="${CONTAINER_REGISTRY_USERNAME:-username}"
+CONTAINER_REGISTRY_NAMESPACE="${CONTAINER_REGISTRY_NAMESPACE:-username}"
+CONTAINER_REGISTRY_PASSWORD="${CONTAINER_REGISTRY_PASSWORD:-password}"
+CONTAINER_IMAGE_NAME="${CONTAINER_IMAGE_NAME:-image-name}"
+CONTAINER_IMAGE_TAG="${CONTAINER_IMAGE_TAG:-latest}"
+
+# =============================================================================
+# Functions
+# =============================================================================
+
+# Print help message
+print_help() {
+    echo "Usage: $0 [OPTIONS]"
+    echo ""
+    echo "Options:"
+    echo "  build       Build Docker image"
+    echo "  push        Push Docker image to registry"
+    echo "  help        Show this help message (default)"
+    echo ""
+    echo "Environment Variables:"
+    echo "  CONTAINER_REGISTRY_URL       Registry URL (default: 127.0.0.1)"
+    echo "  CONTAINER_REGISTRY_USERNAME  Registry username (default: username)"
+    echo "  CONTAINER_REGISTRY_NAMESPACE Registry namespace (default: username)"
+    echo "  CONTAINER_REGISTRY_PASSWORD  Registry password (default: password)"
+    echo "  CONTAINER_IMAGE_NAME         Image name (default: image-name)"
+    echo "  CONTAINER_IMAGE_TAG          Image tag (default: latest)"
+    echo ""
+    echo "Examples:"
+    echo "  $0 build"
+    echo "  $0 push"
+    echo "  CONTAINER_IMAGE_TAG=v1.0.0 $0 build"
+}
+
+# Build Docker image
+build_image() {
+    # Construct the full image name with registry, namespace, name, and tag
+    FULL_IMAGE_NAME="${CONTAINER_REGISTRY_URL}/${CONTAINER_REGISTRY_NAMESPACE}/${CONTAINER_IMAGE_NAME}:${CONTAINER_IMAGE_TAG}"
+    
+    echo "=========================================="
+    echo "Building Docker Image"
+    echo "=========================================="
+    echo "Image: ${FULL_IMAGE_NAME}"
+    echo ""
+    
+    # Build the Docker image using Dockerfile in current directory
+    docker build -t "${FULL_IMAGE_NAME}" .
+    
+    # Check if build was successful
+    if [ $? -eq 0 ]; then
+        echo ""
+        echo "✓ Build successful: ${FULL_IMAGE_NAME}"
+    else
+        echo ""
+        echo "✗ Build failed"
+        exit 1
+    fi
+}
+
+# Push Docker image to registry
+push_image() {
+    # Construct the full image name
+    FULL_IMAGE_NAME="${CONTAINER_REGISTRY_URL}/${CONTAINER_REGISTRY_NAMESPACE}/${CONTAINER_IMAGE_NAME}:${CONTAINER_IMAGE_TAG}"
+    
+    echo "=========================================="
+    echo "Pushing Docker Image to Registry"
+    echo "=========================================="
+    echo "Registry: ${CONTAINER_REGISTRY_URL}"
+    echo "Image: ${FULL_IMAGE_NAME}"
+    echo ""
+    
+    # Login to the container registry
+    echo "Logging in to registry..."
+    echo "${CONTAINER_REGISTRY_PASSWORD}" | docker login "${CONTAINER_REGISTRY_URL}" \
+        -u "${CONTAINER_REGISTRY_USERNAME}" \
+        --password-stdin
+    
+    # Check if login was successful
+    if [ $? -ne 0 ]; then
+        echo "✗ Login failed"
+        exit 1
+    fi
+    
+    echo "✓ Login successful"
+    echo ""
+    
+    # Push the image to registry
+    echo "Pushing image..."
+    docker push "${FULL_IMAGE_NAME}"
+    
+    # Check if push was successful
+    if [ $? -eq 0 ]; then
+        echo ""
+        echo "✓ Push successful: ${FULL_IMAGE_NAME}"
+    else
+        echo ""
+        echo "✗ Push failed"
+        exit 1
+    fi
+    
+    # Logout from registry
+    docker logout "${CONTAINER_REGISTRY_URL}"
+}
+
+# =============================================================================
+# Main Script Logic
+# =============================================================================
+
+# If no arguments provided, show help
+if [ $# -eq 0 ]; then
+    print_help
+    exit 0
+fi
+
+# Process command line arguments
+case "$1" in
+    build)
+        build_image
+        ;;
+    push)
+        push_image
+        ;;
+    help|--help|-h)
+        print_help
+        ;;
+    *)
+        echo "Error: Unknown option '$1'"
+        echo ""
+        print_help
+        exit 1
+        ;;
+esac