Merge pull request #70 from ItzNotABug/tweak-docker-file

Tweak: `Dockerfile`

Author: ItzNotABug

Dockerfile

@@ -1,20 +1,32 @@
 # Build stage
-FROM node:18-alpine
+FROM node:18-alpine AS deps
 
-# Label
-LABEL author="@ItzNotABug"
+# Set working directory
+WORKDIR /usr/src/app
+
+# Copy package.json and package-lock.json
+COPY package*.json ./
+
+# Install only production dependencies
+RUN npm ci --omit-dev
+
+# Build stage renamed for clarity, no actual build commands though
+FROM node:18-alpine AS runner
 
 # Set working directory
 WORKDIR /usr/src/app
 
+# Copy node_modules from 'deps' stage
+COPY --from=deps /usr/src/app/node_modules ./node_modules
+
 # Copy the rest of your application code
 COPY . .
 
+# Label
+LABEL author="@ItzNotABug"
+
 # Install PM2 globally
 RUN npm install pm2 -g
 
-# Install dependencies
-RUN npm ci --omit-dev
-
 # Start your app
-CMD ["pm2-runtime", "start", "app.js", "--name", "ghosler-app"]
+CMD ["pm2-runtime", "start", "app.js", "--name", "ghosler-app"]