nginxingress将目标重写为/api不起作用

Question

我正在尝试将api作为位置(/api(来使用intress设置

这是我的入口：

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress-dev
annotations:
# use the shared ingress-nginx
kubernetes.io/ingress.class: "nginx"
#nginx.ingress.kubernetes.io/rewrite-target: /
#nginx.ingress.kubernetes.io/app-root: /

spec:
rules:
- host: 'dev.example.com'
http:
paths:
- path: /api
pathType: Prefix
backend:
service:
name: my-ruby
port: 3000

当我卷曲dev.example.com/api/check_version时我得到错误

I, [2021-12-01T16:43:35.776502 #13]  INFO -- : [7253cca0b88503d625af527db32eb92e] Started GET "/api/check_serverr" for 10.42.1.228 at 2021-12-01 16:43:35 +0300
F, [2021-12-01T16:43:35.779603 #13] FATAL -- : [7253cca0b88503d625af527db32eb92e]
[7253cca0b88503d625af527db32eb92e] ActionController::RoutingError (No route matches [GET] "/api/check_version"):

如果我添加注释nginx.ingress.kubernetes.io/rewrite-target:/

获取错误

I, [2021-12-01T16:49:11.153280 #13]  INFO -- : [7832de5c07e3a173ddc86ebab5735cec] Started GET "/" for 10.42.1.228 at 2021-12-01 16:49:11 +0300
F, [2021-12-01T16:49:11.154435 #13] FATAL -- : [7832de5c07e3a173ddc86ebab5735cec]
[7832de5c07e3a173ddc86ebab5735cec] ActionController::RoutingError (No route matches [GET] "/"):

在这种情况下，如何正确地进行重写？

Answer 1

根据评论，以下内容似乎已经解决了这个问题。

您希望在请求发送到后端之前剥离/api部分，因此请求/api/check_version在到达后端之前将变为/check_version：

annotations:
nginx.ingress.kubernetes.io/rewrite-target: /$2
...<omitted>...
- path: /api(/|$)(.*)