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fix(nginx): re-resolve upstream DNS in Docker (#1517)

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Enable runtime DNS re-resolution for docker-compose upstreams (gateway/langgraph/frontend) to avoid stale container IPs causing persistent 502s.
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passer 2026-03-29 21:47:26 +08:00 committed by GitHub
parent 580920ef63
commit 75c4757f48
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1 changed files with 8 additions and 3 deletions
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11
docker/nginx/nginx.conf
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@ -18,16 +18,21 @@ http {
resolver 127.0.0.11 valid=10s ipv6=off;
# Upstream servers (using Docker service names)
# NOTE: add `resolve` so nginx re-resolves container IPs after restarts.
# Otherwise nginx may keep stale DNS results and proxy to the wrong container.
upstream gateway {
server gateway:8001;
zone gateway 64k;
server gateway:8001 resolve;
}
upstream langgraph {
server langgraph:2024;
zone langgraph 64k;
server langgraph:2024 resolve;
}
upstream frontend {
server frontend:3000;
zone frontend 64k;
server frontend:3000 resolve;
}
# ── Main server (path-based routing) ─────────────────────────────────