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fix(docker): bake server path into entrypoint (ignore runtime APP_NAME) #100

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Merged
f-amine merged 1 commit into from
Jun 18, 2026
Merged

fix(docker): bake server path into entrypoint (ignore runtime APP_NAME) #100

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14 changes: 9 additions & 5 deletions docker/Dockerfile.next
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Original file line number Diff line number Diff line change
Expand Up @@ -69,8 +69,6 @@ ARG APP_PORT
ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1
ENV PORT=${APP_PORT}
# Persist APP_NAME so the runtime CMD can resolve the standalone server path.
ENV APP_NAME=${APP_NAME}
WORKDIR /app
RUN addgroup -S nodejs && adduser -S nextjs -G nodejs

Expand All @@ -79,9 +77,15 @@ COPY --from=builder --chown=nextjs:nodejs /repo/apps/${APP_NAME}/.next/standalon
COPY --from=builder --chown=nextjs:nodejs /repo/apps/${APP_NAME}/.next/static ./apps/${APP_NAME}/.next/static
COPY --from=builder --chown=nextjs:nodejs /repo/apps/${APP_NAME}/public ./apps/${APP_NAME}/public

# Bake the standalone entrypoint path into a script at BUILD time. We must not
# read APP_NAME from the runtime env: the platform injects its own env (Dokploy
# sets APP_NAME to the project name) and env_file overrides image ENV, which
# would point node at a nonexistent path. The value is fixed here per image.
RUN printf '#!/bin/sh\nexec node /app/apps/%s/server.js\n' "$APP_NAME" > /app/start.sh \
&& chmod +x /app/start.sh \
&& chown nextjs:nodejs /app/start.sh

USER nextjs
EXPOSE ${APP_PORT}
ENV HOSTNAME=0.0.0.0
# Shell form so $APP_NAME expands at runtime; `exec` hands PID 1 to node so it
# receives SIGTERM for graceful shutdown. Exec-form JSON would not expand vars.
CMD ["sh", "-c", "exec node apps/$APP_NAME/server.js"]
CMD ["/app/start.sh"]
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