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photogallery/Dockerfile
Alex Rennie-Lis 811bb9dc74 first commit
2026-06-28 23:06:18 +01:00

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Docker

# --- STAGE 1: Build the application ---
FROM node:20-alpine AS builder
WORKDIR /app
# Copy dependency configurations
COPY package*.json ./
# Install all dependencies (including devDependencies needed for building)
RUN npm ci
# Copy the rest of the application source code
COPY . .
# Build the production application
RUN npm run build
# Prune node_modules down to only production requirements
RUN npm prune --production
# --- STAGE 2: Run the application ---
FROM node:20-alpine AS runner
WORKDIR /app
# Set production configurations
ENV NODE_ENV=production
ENV PORT=3000
# Create a secure non-root system user for security hardening
RUN addgroup -g 1001 -S nodejs && \
adduser -u 1001 -S svelteuser -G nodejs
# Copy essential production files from the builder stage
COPY --from=builder /app/package.json ./package.json
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/build ./build
# Switch execution contexts to the non-root user
USER svelteuser
# Expose target internal application port
EXPOSE 3000
# Fire up the SvelteKit Node cluster server
CMD ["node", "build/index.js"]