我目前正在学习kubernetes库，我想在集群之外公开一个mongodb。我已经设置了我的nginx入口控制器，并遵循此文档来公开纯TCP连接。
这是我的入口服务配置：
apiVersion: v1
kind: Service
metadata:
annotations:
labels:
helm.sh/chart: ingress-nginx-4.0.15
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/version: 1.1.1
app.kubernetes.io/managed-by: Helm
app.kubernetes.io/component: controller
name: ingress-nginx-controller
namespace: ingress-nginx
spec:
type: NodePort
ipFamilyPolicy: SingleStack
externalIPs:
- 172.30.63.51
ipFamilies:
- IPv4
ports:
- name: http
port: 80
protocol: TCP
targetPort: http
appProtocol: http
- name: https
port: 443
protocol: TCP
targetPort: https
appProtocol: https
- name: proxied-tcp-27017
port: 27017
protocol: TCP
targetPort: 27017
selector:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/component: controller
代理TCP连接的配置映射：
apiVersion: v1
kind: ConfigMap
metadata:
name: tcp-services
namespace: ingress-nginx
data:
27017: "global-stack/global-stack-mongo-svc:27017"
我的入口控制器在端口80和443上运行良好，以暴露我的服务，但我无法访问端口27017
kubectl获取svc-n入口nginx:的结果
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S)
ingress-nginx-controller NodePort 10.97.149.93 172.30.63.51 80:30159/TCP,443:32585/TCP,27017:30098/TCP
ingress-nginx-controller-admission ClusterIP 10.107.33.165 <none> 443/TCP
外部IP对curl 172.30.63.51:80 反应良好
<html>
<head><title>404 Not Found</title></head>
<body>
<center><h1>404 Not Found</h1></center>
<hr><center>nginx</center>
</body>
</html>
但无法响应端口27017:
curl: (7) Failed to connect to 172.30.63.51 port 27017: Connection refused
我的mongo服务：
apiVersion: v1
kind: Service
metadata:
name: global-stack-mongo-svc
namespace: global-stack
labels:
app: global-stack-mongo-app
spec:
type: ClusterIP
ports:
- name: http
port: 27017
protocol: TCP
targetPort: 27017
selector:
app: global-stack-mongo-app
服务的集群IP为10.244.1.57，响应良好
>> curl 10.244.1.57:27017
It looks like you are trying to access MongoDB over HTTP on the native driver port.
如果有人能帮助我，我将不胜感激。感谢
吉姆。
经过一些研究，我解决了我的问题。
在nginxingress文档中，没有对其进行描述，但您需要将带有ingress控制器容器的TCP配置映射映射到部署文件中：
args:
- /nginx-ingress-controller
- --election-id=ingress-controller-leader
- --controller-class=k8s.io/ingress-nginx
- --configmap=$(POD_NAMESPACE)/ingress-nginx-controller
- --validating-webhook=:8443
- --validating-webhook-certificate=/usr/local/certificates/cert
- --validating-webhook-key=/usr/local/certificates/key
- --tcp-services-configmap=ingress-nginx/tcp-services