fix(nginx): 变量化 proxy_pass 配合 resolver 实现动态 DNS 解析

静态 proxy_pass 在 nginx 启动时解析主机名,容器重建后 IP 变更导致
502 且 nginx -s reload 因 host not found 失败。
改为 set $svc + proxy_pass http://$svc:port 写法,配合 resolver 127.0.0.11
每 10s 重新解析,容器重建后 nginx 自动感知新 IP,无需手动操作。

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
这个提交包含在:
徐勤民 2026-05-21 11:17:25 +08:00
父节点 5e75dbeb90
当前提交 b411e613bd

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@ -5,8 +5,9 @@ server {
charset utf-8;
client_max_body_size 100m;
# Docker 内置 DNS resolver,每 10s 重新解析上游服务 IP
# 容器重建后 IP 变更时 nginx 自动感知,无需手动 reload
# Docker 内置 DNS resolver + 变量化 proxy_pass
# nginx 对静态 proxy_pass 在启动时静态解析主机名,容器重建后 IP 变更即失效。
# 改为变量写法后,resolver 每 10s 重新解析,容器重建无需重启/reload nginx。
resolver 127.0.0.11 valid=10s ipv6=off;
# 健康检查(宿主机 nginx 探活用)
@ -17,7 +18,8 @@ server {
# 版本管理 — 必须在通用 /api/ 之前
location /api/v1/updates/ {
proxy_pass http://update-service:8084/api/v1/updates/;
set $svc update-service;
proxy_pass http://$svc:8084;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@ -25,7 +27,8 @@ server {
}
location /api/v1/rn/ {
proxy_pass http://update-service:8084/api/v1/rn/;
set $svc update-service;
proxy_pass http://$svc:8084;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@ -34,7 +37,8 @@ server {
# IM HTTP — 必须在通用 /api/ 之前
location /api/im/ {
proxy_pass http://im-service:8082/api/im/;
set $svc im-service;
proxy_pass http://$svc:8082;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@ -43,7 +47,8 @@ server {
# IM WebSocket
location /ws/im {
proxy_pass http://im-service:8082/ws/im;
set $svc im-service;
proxy_pass http://$svc:8082;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
@ -54,7 +59,8 @@ server {
# License — 必须在通用 /api/ 之前
location /api/license/ {
proxy_pass http://license-service:8085/api/license/;
set $svc license-service;
proxy_pass http://$svc:8085;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@ -63,7 +69,8 @@ server {
# 文件上传下载
location /file/ {
proxy_pass http://file-service:8086/file/;
set $svc file-service;
proxy_pass http://$svc:8086;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@ -74,7 +81,8 @@ server {
# 核心 API兜底,在所有具体 /api/xxx/ 之后)
location /api/ {
proxy_pass http://tenant-service:9001/api/;
set $svc tenant-service;
proxy_pass http://$svc:9001;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@ -82,7 +90,8 @@ server {
}
location /actuator/ {
proxy_pass http://tenant-service:9001/actuator/;
set $svc tenant-service;
proxy_pass http://$svc:9001;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
}
@ -90,7 +99,8 @@ server {
# 控制台前端(兜底路由,必须最后)
# sub_filter 替换前端 JS bundle 中硬编码的公有平台地址为私有部署地址
location / {
proxy_pass http://tenant-web:80;
set $svc tenant-web;
proxy_pass http://$svc:80;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Accept-Encoding "";