Nginx-ingress-controller部署

参考官网https://kubernetes.github.io/ingress-nginx/

部署pod：nginx-ingress-controller/nginx-default-backend
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/mandatory.yaml
配置修改：
1. 取消转发body限制：
kind: ConfigMap
apiVersion: v1
metadata:
  name: nginx-configuration
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
data:
  proxy-body-size: "0"

k8s裸机部署bare-metal(nodeport方式):
部署service
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/provider/baremetal/service-nodeport.yaml

配置修改：
apiVersion: v1
kind: Service
metadata:
  name: ingress-nginx
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
spec:
  ports:
  - name: http
    port: 8083
    targetPort: 80
    protocol: TCP
  - name: https
    port: 8084
    targetPort: 443
    protocol: TCP
  selector:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
  externalIPs:
  - "{portal_host}"

Note：保证镜像能正常下载

部署Ingress(前提：game2048-pod/service已经部署完毕)
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: game-ingress
  namespace: default
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
    nginx.ingress.kubernetes.io/ssl-redirect: "false"
spec:
  rules:
  - http:
      paths:
      - path: /game
        backend:
          serviceName: game2048
          servicePort: 7090

验证：
curl  http://external_ip:port/game
response正常

参考资料：
官方部署文档
https://kubernetes.github.io/ingress-nginx/
部署流程示例
https://blog.csdn.net/aixiaoyang168/article/details/78485581
暴露服务的几种方式：
https://medium.com/google-cloud/kubernetes-nodeport-vs-loadbalancer-vs-ingress-when-should-i-use-what-922f010849e0