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Update nginx configs for reresolving proxy endpoints.

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This commit is contained in:
febux 2026-08-22 21:18:27 +03:00
parent 3ad7ebf889
commit fc217643dc
2 changed files with 28 additions and 12 deletions
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16
deploy/nginx/templates/contract-check-http.conf.template
View file

@ -3,9 +3,11 @@
# forwards to the api service. Same envsubst vars as the TLS template:
# NGINX_SERVER_NAME (expanded by the nginx Docker entrypoint).
upstream api {
server api:8000;
}
# Dynamic DNS resolution: when the API container is recreated it gets a new
# IP. Using a variable with proxy_pass forces nginx to re-resolve `api`
# against Docker's embedded DNS every `valid=` interval instead of caching the
# address at startup.
resolver 127.0.0.11 valid=10s;
log_format contract_check '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
@ -27,7 +29,9 @@ server {
server_name ${NGINX_SERVER_NAME} localhost;
location ~ ^/(healthz|readyz|metrics|api/|admin/|docs|openapi.json) {
proxy_pass http://api;
# Variable forces dynamic DNS resolution for `api`.
set $api http://api:8000;
proxy_pass $api;
proxy_http_version 1.1;
proxy_set_header Host $host;
@ -44,7 +48,9 @@ server {
}
location /webhook/ {
proxy_pass http://api/api/v1/webhooks/;
# Variable forces dynamic DNS resolution for `api`.
set $api http://api:8000;
proxy_pass $api/api/v1/webhooks/;
proxy_http_version 1.1;
proxy_set_header Host $host;

24
deploy/nginx/templates/contract-check.conf.template
View file

@ -7,11 +7,17 @@
# Do not run `nginx -t` directly on this .template file; render it first with
# envsubst or start the container.
# ── Upstreams ───────────────────────────────────────────────────────────────
# In Docker Compose the `api` hostname resolves via the project network.
upstream api {
server api:8000;
}
# ── Dynamic upstream resolution ─────────────────────────────────────────────
# In Docker Compose the `api` hostname must be re-resolved when the API
# container is recreated (it gets a new IP). By default nginx resolves an
# upstream hostname once at startup and caches it forever, so after a deploy the
# edge proxy would keep trying the old API IP. Using a variable with
# proxy_pass forces nginx to re-resolve `api` against Docker's embedded DNS
# every `valid=` interval.
#
# 127.0.0.11 is Docker's internal resolver (available inside containers).
# If it is unreachable, increase `valid=` or set an explicit resolver address.
resolver 127.0.0.11 valid=10s;
# ── Logging ─────────────────────────────────────────────────────────────────
log_format contract_check '$remote_addr - $remote_user [$time_local] "$request" '
@ -65,7 +71,9 @@ server {
# lock it down at the firewall (or remove this block if metrics must stay
# private and are scraped by an in-compose Prometheus).
location ~ ^/(healthz|readyz|metrics|api/|admin/|docs|openapi.json) {
proxy_pass http://api;
# Variable forces dynamic DNS resolution for `api`.
set $api http://api:8000;
proxy_pass $api;
proxy_http_version 1.1;
proxy_set_header Host $host;
@ -85,7 +93,9 @@ server {
# Webhook endpoint for future payment providers (ЮKassa, etc.).
# Kept separate so it's easy to add IP allow-listing or extra logging.
location /webhook/ {
proxy_pass http://api/api/v1/webhooks/;
# Variable forces dynamic DNS resolution for `api`.
set $api http://api:8000;
proxy_pass $api/api/v1/webhooks/;
proxy_http_version 1.1;
proxy_set_header Host $host;