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Fix: use Docker internal DNS resolver for API upstream

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nginx resolves proxy_pass hostnames at startup, before the api
container is reachable. Using resolver 127.0.0.11 + set $api
defers resolution to request time.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Kenji M
2026-06-19 15:20:58 +00:00
parent e802f03f02
commit f8997a6199
1 changed files with 4 additions and 1 deletions
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5
frontend/nginx.conf
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@@ -9,8 +9,11 @@ server {
} }
# Proxy API calls to the backend container # Proxy API calls to the backend container
# Use Docker's internal DNS resolver so upstream resolves at request time
resolver 127.0.0.11 valid=10s;
set $api http://api:3001;
location /api/ { location /api/ {
proxy_pass http://api:3001/; proxy_pass $api/;
proxy_set_header Host $host; proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;