nginx - kubernetes nginx 入口错误与配置片段

Question

我有以下 ingress.yaml 文件

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
    name: nginx-configuration-snippet
    annotations:
        nginx.ingress.kubernetes.io/rewrite-target: /$2
        nginx.ingress.kubernetes.io/configuration-snippet: |
          location /base/path/v1/api/update {
              deny all;
              return 404;
            }
spec:
  rules:
    - http:
        paths:
          - path: /base/path(/|$)(.*)
            backend:
              serviceName: myApi
              servicePort: 8080

但是当我向 https:///base/path/v1/api/update 发送请求时，它成功了，并且在 nginx 入口 Controller 中出现了以下错误

Error: exit status 1
2020/08/06 18:35:07 [emerg] 1734#1734: location "/base/path/v1/api/update" is outside location "^/base/path(/|$)(.*)" in /tmp/nginx-cfg008325631:2445
nginx: [emerg] location "/base/path/v1/api/update" is outside location "^/base/path(/|$)(.*)" in /tmp/nginx-cfg008325631:2445
nginx: configuration file /tmp/nginx-cfg008325631 test failed

有人可以帮忙吗？

Answer 1

configuration-snippet是添加配置到地点 .
如果您想向 server 添加自定义位置上下文，您应该使用 server-snippet反而:

Using the annotation nginx.ingress.kubernetes.io/server-snippet it ispossible to add custom configuration in the server configurationblock.

您还需要使用一些修饰符和正则表达式来使其工作( ~* 和 ^ )。
以下配置应该可以工作:

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
    name: nginx-configuration-snippet
    annotations:
        nginx.ingress.kubernetes.io/rewrite-target: /$2
        nginx.ingress.kubernetes.io/server-snippet: |
          location ~* "^/base/path/v1/api/update" {
              deny all;
              return 403;
            }
spec:
  rules:
    - http:
        paths:
          - path: /base/path(/|$)(.*)
            backend:
              serviceName: myApi
              servicePort: 8080

最后 nginx.config应该这样结束:

$ kubectl exec -n kube-system nginx-ingress-controller-6fc5bcc8c9-chkxf -- cat /etc/nginx/nginx.conf

[...]

location ~* "^/base/path/v1/api/update" {
            deny all;
            return 403;
        }
        
location ~* "^/base/path(/|$)(.*)" {
[...]           
}