Ingress Controller
Ingress Controller 通常是一个负载均衡器，用于将外部流量路由到您的 Kubernetes 集群，并负责 L4-L7 网络服务
Ingress controller 仅覆盖 L7 流量，而入口重新路由 HTTP 和 HTTPS 流量
Type of Ingress Controllers
Cloud-Based Ingress Controllers
- AKS Application Gateway Ingress Controller
- AWS ALB Ingress Controller
- GCP GLBC/GCE-Ingress Controller
常用的开源的Ingress Controllers
- Voyager: HAProxy based Ingress Controller from AppsCode
- F5: Supports F5's BIG-IP Container Ingress Services
- ·HAProxy： Community-driven HAProxy Ingress Controller as well as enterprise offerinfrom HAProxy Tech
- Istio: Ingress Gateway for Istio-enabled clusters
- Kong: Nginx-based API gateway with community or enterprise options from KongHọ
- NGINX: Official Ingress for NGINX and NGINX Plus
- ·Skipper: HTTP router and reverse proxy from Zalando
应用架构
部署EKS集群
- 将如下内容存储为eks_cluster_with_exists_vpc.yaml
# creat eks cluster using an existing vpc, it also creat an spot manage group
---
apiVersion: eksctl.io/v1alpha5
kind: ClusterConfig
metadata:
name: test
region: us-east-1 # set the cluster resource region
version: "1.22" # set the eks version
vpc:
id: "vpc-0ec5f2d50b034e416" #replace your vpc id
cidr: "10.0.0.0/16" #must match CIDR used by the given VPC
subnets:
public:
us-east-1a:
id: "subnet-047f29ab2ae67f3f5"
cidr: "10.0.0.0/20"
us-east-1b:
id: "subnet-0cb75eb1aa880ce79"
cidr: "10.0.16.0/20"
us-east-1c:
id: "subnet-095f4ab72620fbab0"
cidr: "10.0.32.0/20"
managedNodeGroups:
- name: managed-nodes
labels:
role: managed-nodes
instanceType: t3.small
minSize: 3
desiredCapacity: 3
maxSize: 4
volumeSize: 30
spot: true
privateNetworking: false
ssh:
publicKeyName: test
2. 使用如下命令创建EKS集群
eksctl create cluster -f eks_cluster_with_exists_vpc.yaml
3. 集群创建好之后使用如下命令查看节点
kubectl get nodes
部署nginx ingress Controller
直接使用helm一键部署
helm upgrade --install ingress-nginx ingress-nginx \ --repo https://kubernetes.github.io/ingress-nginx \ --namespace ingress-nginx --create-namespace
若使用kubectl工具则可以使用如下命令进行安装部署
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.7.0/deploy/static/provider/cloud/deploy.yaml
重要说明：部署nginx ingress controller记得要留意兼容性版本
参考资料
1. https://kubernetes.github.io/ingress-nginx/deploy/#quick-start
2. https://github.com/kubernetes/ingress-nginx
