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fix(nginx): add public DNS fallback for upstream resolution #13

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shad merged 1 commits from fix/nginx-public-resolver into main 2026-06-15 12:35:00 +00:00
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nginx.conf
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@@ -19,11 +19,13 @@ server {
add_header Cross-Origin-Resource-Policy "same-origin" always; add_header Cross-Origin-Resource-Policy "same-origin" always;
add_header X-Robots-Tag "noindex, nofollow" always; add_header X-Robots-Tag "noindex, nofollow" always;
# Use the cluster CoreDNS resolver so upstream hostnames are resolved # Use the cluster CoreDNS resolver for in-cluster Services AND public
# lazily (per-request), not at nginx startup. The proxy_pass targets below # resolvers as fallback for external hostnames (demo.flow-master.ai etc.).
# use $variable form to force this lazy resolution; otherwise nginx fails # k3s CoreDNS by default forwards external lookups, but if the forward
# to start when cluster DNS is briefly unavailable (e.g. node recovery). # is missing the proxy_pass to demo.flow-master.ai fails with 502/504.
resolver 10.43.0.10 valid=30s ipv6=off; # Listing public resolvers alongside ensures lookups succeed in both
# cases. Targets use $variable form to force lazy per-request resolution.
resolver 10.43.0.10 1.1.1.1 8.8.8.8 valid=30s ipv6=off;
# Reverse-proxy /api to the demo backend so live mode is same-origin. # Reverse-proxy /api to the demo backend so live mode is same-origin.
location /api/ { location /api/ {