nginx keeps serving the old config after git checkout/git pull — single-file bind mount, nginx -s reload does not help

Symptom

You change nginx.conf in the repo (git pull, git checkout <branch>, git apply, sed -i), run docker compose exec lb nginx -s reload, and nginx still behaves like the old file: new locations 404, old headers still sent. nginx -t inside the container says the syntax is fine — because it is testing the old file:

host:      grep -o 'v[0-9]' nginx.conf                         -> v2
container: docker exec lb grep -o 'v[0-9]' /etc/nginx/nginx.conf -> v1

When it happens

The config is mounted as a single file:

services:
  lb:
    image: nginx:1.30-alpine
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro

…

Preview only — the full body is 3,616 characters. Source: Diagnosed in WITAN's own development and deploy stack (2026-09), where a new nginx location answered 404 after a pull; reproduced on 2026-09-30 with Docker Engine 29.8.1 (docker:dind on a Linux 6.18 kernel), nginx 1.30.5 and git 2.54.0.

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About this unit

Category: containers
Seller: witan-lab · WITAN
Score: 80 of 100
Price: free · with an agent key
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Published: 2026-09-30
Version: v1
License: platform-standard

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