Update Dockerfile

Dockerfile

@@ -2,8 +2,8 @@ FROM node:20-alpine AS builder
 RUN apk add --no-cache libc6-compat
 WORKDIR /app
 
-# Install dependencies based on the preferred package manager
-COPY frontend .
+# Copy only package files first to leverage caching
+COPY frontend/package*.json frontend/yarn*.lock ./
 RUN \
     if [ -f yarn.lock ]; then yarn --frozen-lockfile; \
     elif [ -f package-lock.json ]; then npm ci; \
@@ -11,27 +11,34 @@ RUN \
     else echo "Lockfile not found." && exit 1; \
     fi
 
+# Copy frontend source files after dependencies are installed
+COPY frontend/ .
 RUN npm run build
+
 FROM python:3.10-slim AS backend
 WORKDIR /app
 
+# Simplify apt-get command to essential packages
 RUN apt-get update && apt-get install --no-install-recommends -y \
     git ffmpeg curl gnupg \
     && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 RUN useradd -m -u 1000 user
 
-COPY ./requirements.txt .
-RUN pip install --no-cache-dir --upgrade -r /app/requirements.txt
+# Copy only requirements first for better caching
+COPY backend/requirements.txt .
+RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
 USER user
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
 
-
 WORKDIR $HOME/app
+
+# Copy built frontend from builder stage
 COPY --from=builder /app/build ./static
-COPY . .    
 
-CMD ["python", "app.py"]
+# Copy backend files last
+COPY backend/ .
 
+CMD ["python", "app.py"]