Trey t
ff6921b2f4
Next.js NEXT_PUBLIC_* variables are baked in at build time, not runtime. Without ARG declarations in the Dockerfile, Dokku's --build-arg flags have no effect and PostHog/API URLs are undefined in the client bundle. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
44 lines
1.0 KiB
Docker
44 lines
1.0 KiB
Docker
# Build stage
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FROM node:20-alpine AS builder
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WORKDIR /app
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COPY package*.json ./
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RUN npm ci
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COPY . .
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# Next.js NEXT_PUBLIC_* vars must be present at build time
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ARG NEXT_PUBLIC_API_URL
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ARG NEXT_PUBLIC_POSTHOG_KEY
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ARG NEXT_PUBLIC_POSTHOG_HOST
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ENV NEXT_PUBLIC_API_URL=$NEXT_PUBLIC_API_URL
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ENV NEXT_PUBLIC_POSTHOG_KEY=$NEXT_PUBLIC_POSTHOG_KEY
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ENV NEXT_PUBLIC_POSTHOG_HOST=$NEXT_PUBLIC_POSTHOG_HOST
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RUN npm run build
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# Production stage
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FROM node:20-alpine AS production
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WORKDIR /app
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# Create non-root user
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RUN addgroup -g 1001 nodejs && adduser -u 1001 -G nodejs -s /bin/sh -D nextjs
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# Copy standalone build
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COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
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COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
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COPY --from=builder --chown=nextjs:nodejs /app/public ./public
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USER nextjs
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EXPOSE 3000
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ENV PORT=3000
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ENV HOSTNAME="0.0.0.0"
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HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
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CMD curl -f http://localhost:3000/ || exit 1
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CMD ["node", "server.js"]
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