# homework

**Repository Path**: leechao/homework

## Basic Information

- **Project Name**: homework
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2023-11-30
- **Last Updated**: 2023-11-30

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# homework

## 1、创建nginx的空间

创建名为nginx的命名空间。在Kubernetes集群上执行以下命令：
kubectl create namespace nginx
```bash

[root@linux-node1 salt-kubeadm]# kubectl create namespace nginx
namespace/nginx created
[root@linux-node1 salt-kubeadm]# kubectl get ns
NAME              STATUS   AGE
default           Active   7h1m
ingress-nginx     Active   5h34m
kube-flannel      Active   7h1m
kube-node-lease   Active   7h1m
kube-public       Active   7h1m
kube-system       Active   7h1m
nginx             Active   16s
[root@linux-node1 salt-kubeadm]# 
```


## 2 创建Deployment 在/apps/haohua 下新建nginx-deployment.yaml 创建并设置一个副本

创建Nginx Deployment并设置1个副本：
```yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  namespace: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:

   - name: nginx
     image: nginx1.13.12
     ports:
       - containerPort: 80
```


kubectl apply -f nginx-deployment.yaml
```bash
[root@linux-node1 haohua]# 
[root@linux-node1 haohua]# kubectl get all -n  nginx
NAME                                    READY   STATUS    RESTARTS   AGE
pod/nginx-deployment-7b5975b44b-999q7   1/1     Running   0          14m
pod/nginx-deployment-7b5975b44b-ldpmm   1/1     Running   0          14m
pod/nginx-deployment-7b5975b44b-q9pwn   1/1     Running   0          19m

NAME                               READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/nginx-deployment   3/3     3            3           71m

NAME                                          DESIRED   CURRENT   READY   AGE
replicaset.apps/nginx-deployment-64686b4fdb   0         0         0       71m
replicaset.apps/nginx-deployment-689c8b6988   0         0         0       19m
replicaset.apps/nginx-deployment-7b5975b44b   3         3         3       19m
```

##  创建Service

要通过NodePort访问Nginx，请使用以下YAML文件(nginx-service.yaml)创建一个使用NodePort暴露端口32222的Service：
```ymal
apiVersion: v1
kind: Service
metadata:
  name: nginx-service
  namespace: nginx
spec:
  type: NodePort
  selector:
    app: nginx
  ports:

   - protocol: TCP
     port: 80
     targetPort: 80
     nodePort: 32222
```



##  创建 nginx-ingress.ymal

[root@linux-node1 workloads]# cat nginx-ingress2.yaml 
```ymal
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: nginx-ingress
  namespace: nginx
  annotations:
    kubernetes.io/ingress.class: "nginx"
spec:
  rules:

  - host: nginx.k8stest.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: nginx-service
            port:
              number: 80
```
```bash
[root@linux-node1 nginx-ingress]# k get ingress -n nginx
NAME            CLASS    HOSTS               ADDRESS   PORTS   AGE
nginx-ingress   <none>   nginx.k8stest.com             80      10m
[root@linux-node1 nginx-ingress]# 
```
## host 解析至ingress控制器节点
```bash
[root@linux-node1 nginx-ingress]# cat /etc/hosts
::1     localhost       localhost.localdomain   localhost6      localhost6.localdomain6
127.0.0.1       localhost       localhost.localdomain   localhost4      localhost4.localdomain4

172.31.168.46   iZbp183iiuhaznqycgklczZ iZbp183iiuhaznqycgklczZ
172.31.168.46 linux-node1 linux-node1.example.com
172.31.168.45 linux-node2 linux-node2.example.com
172.31.168.44 linux-node3 linux-node3.example.com
172.31.168.43 linux-node4 linux-node4.example.com
121.40.113.189 www.example.com
121.40.113.189 www.k8stest.com
121.40.113.189  nginx.k8stest.com
[root@linux-node1 nginx-ingress]# 
```

## 访问  nginx.k8stest.com
```bash
[root@linux-node1 nginx-ingress]# curl --head  nginx.k8stest.com
HTTP/1.1 200 OK
Date: Mon, 27 Nov 2023 09:12:47 GMT
Content-Type: text/html
Content-Length: 612
Connection: keep-alive
Last-Modified: Mon, 09 Apr 2018 16:01:09 GMT
ETag: "5acb8e45-264"
Accept-Ranges: bytes`这里输入代码`
```