在Ingress-Nginx中,您可以使用自定义变量来配置和控制请求的处理。以下是一些示例和步骤,演示如何在Ingress-Nginx中使用自定义变量:
custom-variables
的ConfigMap,并在其中定义一个名为MY_CUSTOM_VARIABLE
的变量:apiVersion: v1
kind: ConfigMap
metadata:
name: custom-variables
data:
MY_CUSTOM_VARIABLE: "my-custom-value"
$custom_variable_name
的语法来引用自定义变量。例如:apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: my-ingress
spec:
rules:
- host: example.com
http:
paths:
- path: /foo
pathType: Prefix
backend:
service:
name: my-service
port:
number: 80
nginx.ingress.kubernetes.io/configuration-snippet: |
set $my_custom_variable $custom_variable_name;
在上述示例中,nginx.ingress.kubernetes.io/configuration-snippet
字段用于定义自定义Nginx配置。使用set
指令将$custom_variable_name
的值赋给$my_custom_variable
。
location
块中使用$my_custom_variable
:apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: my-ingress
spec:
rules:
- host: example.com
http:
paths:
- path: /foo
pathType: Prefix
backend:
service:
name: my-service
port:
number: 80
nginx.ingress.kubernetes.io/configuration-snippet: |
set $my_custom_variable $custom_variable_name;
nginx.ingress.kubernetes.io/server-snippet: |
location / {
if ($my_custom_variable = "my-custom-value") {
# 处理逻辑
}
}
在上述示例中,nginx.ingress.kubernetes.io/server-snippet
字段用于定义自定义Nginx服务器配置。在location
块中,使用if
语句根据$my_custom_variable
的值执行相应的处理逻辑。
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