使用 Kong Ingress 控制器插件
Kong Ingress 控制器 (KIC) 在您的 minikube 服务器上运行。
-
启动
minikubeminikube start配置所有资源需要几分钟时间。
kubectl get nodes
部署 Kong Ingress 控制器
通过 minikube 命令启用 Kong Ingress 控制器。
$ minikube addons enable kong
🌟 The 'kong' addon is enabled
注意：首次执行此过程可能需要五分钟。
设置环境变量
接下来，我们将使用 Kong 可访问的 IP 地址设置一个环境变量。我们可以使用它向 Kubernetes 集群发送请求。
$ export PROXY_IP=$(minikube service -n kong kong-proxy --url | head -1)
$ echo $PROXY_IP
http://192.168.99.100:32728
或者，您可以使用 minikube tunnel 命令。
# open another terminal window and run
minikube tunnel
# you may need to enter an admin password because minikube need to use ports 80 and 443
让我们测试一下 KIC 是否正在运行。
$ curl -v localhost
* Trying 127.0.0.1:80...
* Connected to localhost (127.0.0.1) port 80 (#0)
> GET / HTTP/1.1
> Host: localhost
> User-Agent: curl/7.86.0
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 404 Not Found
< Date: Wed, 03 May 2023 01:34:31 GMT
< Content-Type: application/json; charset=utf-8
< Connection: keep-alive
< Content-Length: 48
< X-Kong-Response-Latency: 0
< Server: kong/3.2.2
<
* Connection #0 to host localhost left intact
{"message":"no Route matched with those values"}%
创建 Ingress 对象
要代理请求，您需要一个上游应用程序来代理。部署此 echo 服务器提供了一个简单的应用程序，该应用程序返回有关其正在运行的 Pod 的信息
echo "
apiVersion: v1
kind: Service
metadata:
labels:
app: echo
name: echo
spec:
ports:
- port: 1025
name: tcp
protocol: TCP
targetPort: 1025
- port: 1026
name: udp
protocol: TCP
targetPort: 1026
- port: 1027
name: http
protocol: TCP
targetPort: 1027
selector:
app: echo
---
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: echo
name: echo
spec:
replicas: 1
selector:
matchLabels:
app: echo
strategy: {}
template:
metadata:
creationTimestamp: null
labels:
app: echo
spec:
containers:
- image: kong/go-echo:latest
name: echo
ports:
- containerPort: 1027
env:
- name: NODE_NAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
- name: POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
- name: POD_IP
valueFrom:
fieldRef:
fieldPath: status.podIP
resources: {}
" | kubectl apply -f -
接下来，我们将创建路由配置，以将 /echo 请求代理到 echo 服务器
echo "
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: echo
annotations:
konghq.com/strip-path: 'true'
spec:
ingressClassName: kong
rules:
- host: kong.example
http:
paths:
- path: /echo
pathType: ImplementationSpecific
backend:
service:
name: echo
port:
number: 1027
" | kubectl apply -f -
让我们测试一下我们的 ingress 对象。
$ curl -i localhost/echo -H "Host: kong.example"
HTTP/1.1 200 OK
Content-Type: text/plain; charset=utf-8
Content-Length: 133
Connection: keep-alive
Date: Wed, 03 May 2023 01:59:25 GMT
X-Kong-Upstream-Latency: 1
X-Kong-Proxy-Latency: 1
Via: kong/3.2.2
Welcome, you are connected to node minikube.
Running on Pod echo-f4fdf987c-qdv7s.
In namespace default.
With IP address 10.244.0.6.
下一步
注意： 在官方文档中阅读有关 KIC 和不同用例的更多信息。