debug(web): deeper diag of nginx entrypoint crash

infra/scripts/server-web-diag.sh

@@ -1,42 +1,39 @@
 #!/bin/bash
 set +e
-echo "=== docker ps all ==="
-docker ps -a --format "table {{.Names}}\t{{.Image}}\t{{.Status}}" | head -20
+echo "=== web images present ==="
+docker images | grep -E "xiaoxia.*web" | head
 echo ""
-echo "=== web logs (last 80 lines) ==="
-WEB_CID=$(docker ps -aq --filter "name=xiaoxia-web-staging" | head -1)
-echo "WEB_CID=$WEB_CID"
-docker logs "$WEB_CID" 2>&1 | tail -80
+echo "=== check nginx base default.conf ==="
+BASE_IMG="git.xiaoxiajianji.com/xiaoxia/base/nginx:alpine"
+CID=$(docker create "$BASE_IMG" /bin/sh)
+echo "ephemeral cid=$CID"
+echo "--- conf.d contents ---"
+docker start "$CID" 2>/dev/null
+docker exec "$CID" ls -la /etc/nginx/conf.d/ 2>&1
+echo "--- default.conf type ---"
+docker exec "$CID" file /etc/nginx/conf.d/default.conf 2>&1
+docker exec "$CID" stat /etc/nginx/conf.d/default.conf 2>&1
 echo ""
-echo "=== web container inspect ==="
-docker inspect "$WEB_CID" --format 'Status={{.State.Status}} ExitCode={{.State.ExitCode}} Error={{.State.Error}} RestartCount={{.RestartCount}} StartedAt={{.State.StartedAt}} FinishedAt={{.State.FinishedAt}}'
+echo "=== test ln -sf on existing file ==="
+docker exec "$CID" sh -c "ln -sf /etc/nginx/nginx.conf /etc/nginx/conf.d/default.conf && echo ln_ok && ls -la /etc/nginx/conf.d/default.conf"
+docker rm -f "$CID" 2>/dev/null
 echo ""
-echo "=== nginx -t (try exec into running web, or start a new one) ==="
-if docker exec "$WEB_CID" nginx -t 2>&1; then
-    echo "nginx config OK"
-else
-    echo "nginx -t failed on running container (may be stopped)"
-    IMG=$(docker inspect "$WEB_CID" --format '{{.Config.Image}}')
-    echo "Image: $IMG"
-    echo "=== try running nginx -t in ephemeral container ==="
-    docker run --rm --entrypoint nginx "$IMG" -t 2>&1 | tail -20
-fi
+echo "=== check staging web image default.conf ==="
+STAGING_WEB=$(docker inspect xiaoxia-web-staging --format '{{.Config.Image}}' 2>/dev/null)
+echo "Staging web image: $STAGING_WEB"
+CID2=$(docker create "$STAGING_WEB" /bin/sh)
+echo "ephemeral cid=$CID2"
+echo "--- conf.d in built image (before entrypoint) ---"
+docker start "$CID2" 2>/dev/null || echo "(could not start, try without starting)"
+docker exec "$CID2" ls -la /etc/nginx/conf.d/ 2>&1
+echo "--- default.conf content head ---"
+docker exec "$CID2" head -5 /etc/nginx/conf.d/default.conf 2>&1
+docker exec "$CID2" file /etc/nginx/conf.d/default.conf 2>&1
+echo "--- docker-entrypoint.sh content ---"
+docker exec "$CID2" cat /docker-entrypoint.sh 2>&1
 echo ""
-echo "=== nginx conf.d files ==="
-docker exec "$WEB_CID" ls -la /etc/nginx/conf.d/ 2>&1 | head
-echo ""
-echo "=== nginx.conf head ==="
-docker exec "$WEB_CID" head -50 /etc/nginx/nginx.conf 2>&1 | head -60
-echo ""
-echo "=== default.conf head ==="
-docker exec "$WEB_CID" cat /etc/nginx/conf.d/default.conf 2>&1 | head -40
-echo ""
-echo "=== entrypoint / docker CMD ==="
-docker inspect "$WEB_CID" --format 'Entrypoint={{.Config.Entrypoint}} Cmd={{.Config.Cmd}}'
-echo ""
-echo "=== web health endpoint (via docker exec curl) ==="
-docker exec "$WEB_CID" wget -qO- http://localhost:80/ 2>&1 | head -20 || \
-  docker exec "$WEB_CID" curl -sS http://localhost:80/ 2>&1 | head -20 || \
-  echo "no curl/wget in container"
+echo "=== try running entrypoint manually ==="
+docker exec -e APP_ENV=staging "$CID2" sh -x /docker-entrypoint.sh 2>&1 | head -30
+docker rm -f "$CID2" 2>/dev/null
 echo ""
 echo "=== Done ==="