From 0bd850b40d3c8dc0cbea3202ee7ecbc1360892c6 Mon Sep 17 00:00:00 2001
From: Greg <trystuffwospam@livingonlinenow.com>
Date: Sun, 18 May 2025 16:17:54 +0200
Subject: [PATCH] feat: implement multi-stage Docker build for optimized
 Next.js production deployment

---
 Dockerfile | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index eafab74..7b1f88b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Production-ready Dockerfile for Next.js
-FROM node:20-alpine AS base
+FROM node:20-alpine AS builder
 
 # Set the working directory in the container
 WORKDIR /app
@@ -17,18 +17,31 @@ RUN npm ci
 COPY myfavstuff . 
 
 # Build the Next.js application
-RUN echo "--- Debugging Build Environment Variables ---" && \
-    echo "NEXT_PUBLIC_SUPABASE_URL as set in Dockerfile: ($NEXT_PUBLIC_SUPABASE_URL)" && \
-    echo "NEXT_PUBLIC_SUPABASE_ANON_KEY as set in Dockerfile: ($NEXT_PUBLIC_SUPABASE_ANON_KEY)" && \
+RUN echo "--- Debugging Build Environment Variables (Builder Stage) ---" && \
+    echo "NEXT_PUBLIC_SUPABASE_URL: ($NEXT_PUBLIC_SUPABASE_URL)" && \
+    echo "NEXT_PUBLIC_SUPABASE_ANON_KEY: ($NEXT_PUBLIC_SUPABASE_ANON_KEY)" && \
     echo "--- End Debugging --- " && \
     npm run build
 
 # Use a non-root user for security
 RUN addgroup -g 1001 -S nodejs && adduser -S nextjs -u 1001
+
+# Production stage
+FROM node:20-alpine AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+
+COPY --from=builder /app/public ./public
+# Next.js 15 uses a standalone output by default in the .next/standalone directory
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+
 USER nextjs
 
-# Expose port 3000 (default for Next.js)
 EXPOSE 3000
 
-# Command to run the application
-CMD ["npm", "start"]
+ENV PORT 3000
+ENV HOSTNAME 0.0.0.0
+
+CMD ["node", "server.js"]