二进制安装Kubernetes（k8s） v1.24.1 IPv4/IPv6双栈 --- Ubuntu版本 （下）

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小陈运维 发表于 2022/06/15 17:54:17 2022/06/15
【摘要】 ​# 9.安装Calico## 9.1以下步骤只在master01操作### 9.1.1更改calico网段```shell# vim calico.yamlvim calico-ipv6.yaml# calico-config ConfigMap处    "ipam": {        "type": "calico-ipam",        "assign_ipv4": "true"...
​# 9.安装Calico

## 9.1以下步骤只在master01操作

### 9.1.1更改calico网段

```shell
# vim calico.yaml
vim calico-ipv6.yaml
# calico-config ConfigMap处
    "ipam": {
        "type": "calico-ipam",
        "assign_ipv4": "true",
        "assign_ipv6": "true"
    },
    - name: IP
      value: "autodetect"

    - name: IP6
      value: "autodetect"

    - name: CALICO_IPV4POOL_CIDR
      value: "172.16.0.0/16"

    - name: CALICO_IPV6POOL_CIDR
      value: "fc00::/48"

    - name: FELIX_IPV6SUPPORT
      value: "true"

# kubectl apply -f calico.yaml
kubectl apply -f calico-ipv6.yaml 
```

### 9.1.2查看容器状态

```shell
[root@k8s-master01 ~]# kubectl  get pod -A
NAMESPACE     NAME                                       READY   STATUS    RESTARTS   AGE
kube-system   calico-kube-controllers-7fb57bc4b5-dwwg8   1/1     Running   0          23s
kube-system   calico-node-b8p4z                          1/1     Running   0          23s
kube-system   calico-node-c4lzj                          1/1     Running   0          23s
kube-system   calico-node-dfh2m                          1/1     Running   0          23s
kube-system   calico-node-gbhgn                          1/1     Running   0          23s
kube-system   calico-node-ht6nl                          1/1     Running   0          23s
kube-system   calico-typha-dd885f47-jvgsj                1/1     Running   0          23s
[root@k8s-master01 ~]# 
```

# 10.安装CoreDNS

## 10.1以下步骤只在master01操作

### 10.1.1修改文件

```shell
cd coredns/

sed -i "s#10.96.0.10#10.96.0.10#g" coredns.yaml

cat coredns.yaml | grep clusterIP:
  clusterIP: 10.96.0.10 
```

### 10.1.2安装

```shell
kubectl  create -f coredns.yaml 
serviceaccount/coredns created
clusterrole.rbac.authorization.k8s.io/system:coredns created
clusterrolebinding.rbac.authorization.k8s.io/system:coredns created
configmap/coredns created
deployment.apps/coredns created
service/kube-dns created
```

# 11.安装Metrics Server

## 11.1以下步骤只在master01操作

### 11.1.1安装Metrics-server

在新版的Kubernetes中系统资源的采集均使用Metrics-server，可以通过Metrics采集节点和Pod的内存、磁盘、CPU和网络的使用率

```shell
# 安装metrics server
cd metrics-server/

kubectl  apply -f metrics-server.yaml 
```

### 11.1.2稍等片刻查看状态

```shell
kubectl  top node
NAME           CPU(cores)   CPU%   MEMORY(bytes)   MEMORY%   
k8s-master01   154m         1%     1715Mi          21%       
k8s-master02   151m         1%     1274Mi          16%       
k8s-master03   523m         6%     1345Mi          17%       
k8s-node01     84m          1%     671Mi           8%        
k8s-node02     73m          0%     727Mi           9%        
k8s-node03     96m          1%     769Mi           9%        
k8s-node04     68m          0%     673Mi           8%        
k8s-node05     82m          1%     679Mi           8% 
```

# 12.集群验证

## 12.1部署pod资源

```shell
cat<<EOF | kubectl apply -f -
apiVersion: v1
kind: Pod
metadata:
  name: busybox
  namespace: default
spec:
  containers:
  - name: busybox
    image: busybox:1.28
    command:
      - sleep
      - "3600"
    imagePullPolicy: IfNotPresent
  restartPolicy: Always
EOF



# 查看

kubectl  get pod
NAME      READY   STATUS    RESTARTS   AGE
busybox   1/1     Running   0          17s
```

## 12.2用pod解析默认命名空间中的kubernetes

```shell
kubectl get svc
NAME         TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   17h


kubectl exec  busybox -n default -- nslookup kubernetes
3Server:    10.96.0.10
Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local

Name:      kubernetes
Address 1: 10.96.0.1 kubernetes.default.svc.cluster.local
```

## 12.3测试跨命名空间是否可以解析

```shell
kubectl exec  busybox -n default -- nslookup kube-dns.kube-system
Server:    10.96.0.10
Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local

Name:      kube-dns.kube-system
Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local
```

## 12.4每个节点都必须要能访问Kubernetes的kubernetes svc 443和kube-dns的service 53

```shell
telnet 10.96.0.1 443
Trying 10.96.0.1...
Connected to 10.96.0.1.
Escape character is '^]'.

 telnet 10.96.0.10 53
Trying 10.96.0.10...
Connected to 10.96.0.10.
Escape character is '^]'.

curl 10.96.0.10:53
curl: (52) Empty reply from server
```

## 12.5Pod和Pod之前要能通

```shell
kubectl get po -owide
NAME      READY   STATUS    RESTARTS   AGE   IP              NODE         NOMINATED NODE   READINESS GATES
busybox   1/1     Running   0          17m   172.27.14.193   k8s-node02   <none>           <none>

 kubectl get po -n kube-system -owide
NAME                                       READY   STATUS    RESTARTS      AGE   IP               NODE           NOMINATED NODE   READINESS GATES
calico-kube-controllers-5dffd5886b-4blh6   1/1     Running   0             77m   172.25.244.193   k8s-master01   <none>           <none>
calico-node-fvbdq                          1/1     Running   1 (75m ago)   77m   192.168.1.11     k8s-master01   <none>           <none>
calico-node-g8nqd                          1/1     Running   0             77m   192.168.1.14     k8s-node01     <none>           <none>
calico-node-mdps8                          1/1     Running   0             77m   192.168.1.15     k8s-node02     <none>           <none>
calico-node-nf4nt                          1/1     Running   0             77m   192.168.1.13     k8s-master03   <none>           <none>
calico-node-sq2ml                          1/1     Running   0             77m   192.168.1.12     k8s-master02   <none>           <none>
calico-typha-8445487f56-mg6p8              1/1     Running   0             77m   192.168.1.15     k8s-node02     <none>           <none>
calico-typha-8445487f56-pxbpj              1/1     Running   0             77m   192.168.1.11     k8s-master01   <none>           <none>
calico-typha-8445487f56-tnssl              1/1     Running   0             77m   192.168.1.14     k8s-node01     <none>           <none>
coredns-5db5696c7-67h79                    1/1     Running   0             63m   172.25.92.65     k8s-master02   <none>           <none>
metrics-server-6bf7dcd649-5fhrw            1/1     Running   0             61m   172.18.195.1     k8s-master03   <none>           <none>

# 进入busybox ping其他节点上的pod

kubectl exec -ti busybox -- sh
/ # ping 192.168.1.14
PING 192.168.1.14 (192.168.1.14): 56 data bytes
64 bytes from 192.168.1.14: seq=0 ttl=63 time=0.358 ms
64 bytes from 192.168.1.14: seq=1 ttl=63 time=0.668 ms
64 bytes from 192.168.1.14: seq=2 ttl=63 time=0.637 ms
64 bytes from 192.168.1.14: seq=3 ttl=63 time=0.624 ms
64 bytes from 192.168.1.14: seq=4 ttl=63 time=0.907 ms

# 可以连通证明这个pod是可以跨命名空间和跨主机通信的
```

## 12.6创建三个副本，可以看到3个副本分布在不同的节点上（用完可以删了）

```shell
cat > deployments.yaml << EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 80

EOF


kubectl  apply -f deployments.yaml 
deployment.apps/nginx-deployment created

kubectl  get pod 
NAME                               READY   STATUS    RESTARTS   AGE
busybox                            1/1     Running   0          6m25s
nginx-deployment-9456bbbf9-4bmvk   1/1     Running   0          8s
nginx-deployment-9456bbbf9-9rcdk   1/1     Running   0          8s
nginx-deployment-9456bbbf9-dqv8s   1/1     Running   0          8s

# 删除nginx

[root@k8s-master01 ~]# kubectl delete -f deployments.yaml 
```





# 13.安装dashboard

```shell
wget https://raw.githubusercontent.com/cby-chen/Kubernetes/main/yaml/dashboard.yaml
wget https://raw.githubusercontent.com/cby-chen/Kubernetes/main/yaml/dashboard-user.yaml

kubectl  apply -f dashboard.yaml
kubectl  apply -f dashboard-user.yaml
```

## 13.1更改dashboard的svc为NodePort，如果已是请忽略

```shell
kubectl edit svc kubernetes-dashboard -n kubernetes-dashboard
  type: NodePort
```

## 13.2查看端口号

```shell
kubectl get svc kubernetes-dashboard -n kubernetes-dashboard
NAME                   TYPE       CLUSTER-IP       EXTERNAL-IP   PORT(S)         AGE
kubernetes-dashboard   NodePort   10.108.120.110   <none>        443:30034/TCP   34s
```

## 13.3创建token

```shell
kubectl -n kubernetes-dashboard create token admin-user
eyJhbGciOiJSUzI1NiIsImtpZCI6ImxkV1hHaHViN2d3STVLTkxtbFkyaUZPdnhWa0s2NjUzRGVrNmJhMjVpRmsifQ.eyJhdWQiOlsiaHR0cHM6Ly9rdWJlcm5ldGVzLmRlZmF1bHQuc3ZjLmNsdXN0ZXIubG9jYWwiXSwiZXhwIjoxNjUzODMwMTUwLCJpYXQiOjE2NTM4MjY1NTAsImlzcyI6Imh0dHBzOi8va3ViZXJuZXRlcy5kZWZhdWx0LnN2Yy5jbHVzdGVyLmxvY2FsIiwia3ViZXJuZXRlcy5pbyI6eyJuYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsInNlcnZpY2VhY2NvdW50Ijp7Im5hbWUiOiJhZG1pbi11c2VyIiwidWlkIjoiZDZlOTI2YWUtNDExYS00YTU3LTk3NWUtOWI4ZTEyMzYyZjg1In19LCJuYmYiOjE2NTM4MjY1NTAsInN1YiI6InN5c3RlbTpzZXJ2aWNlYWNjb3VudDprdWJlcm5ldGVzLWRhc2hib2FyZDphZG1pbi11c2VyIn0.ZSGJmGQc0F1jeJp8SwgZQ0a9ynTYi-y1JNUBJBhjRVStS9KphVK5MLpRxV4KqzhzGt8pR20nNZGop3na6EgIXVJ8XNrlQQO8kZV_I11ylw_mqL7sjCK_UsxJODOOvoRzOJMN3Qd9ONLB3cPjge9zIGeRvaEwpQulOWALScyQvO__1LkSjqz2DPQM7aDh0Gt6VZ2-JoVgTlEBy--nF-Okb0qyHMI8KEcqv7BnI1rJw5rETL7JrYBM3YIWY8_Ft71w6dKn7UhEbB9tPVMi0ymGTpUVja2M2ypsDymrMlcd4doRUn98F_i0iGW4ZN3CweRDFnkwwIUODjTn1fdp1uPXnQ
```

## 13.3登录dashboard

https://192.168.1.11:30034/



# 14.ingress安装

## 14.1写入配置文件，并执行

```shell
[root@hello ~/yaml]# vim deploy.yaml
[root@hello ~/yaml]# cat deploy.yaml
apiVersion: v1
kind: Namespace
metadata:
  name: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx


---
# Source: ingress-nginx/templates/controller-serviceaccount.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: controller
  name: ingress-nginx
  namespace: ingress-nginx
automountServiceAccountToken: true
---
# Source: ingress-nginx/templates/controller-configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: controller
  name: ingress-nginx-controller
  namespace: ingress-nginx
data:
  allow-snippet-annotations: 'true'
---
# Source: ingress-nginx/templates/clusterrole.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
  name: ingress-nginx
rules:
  - apiGroups:
      - ''
    resources:
      - configmaps
      - endpoints
      - nodes
      - pods
      - secrets
      - namespaces
    verbs:
      - list
      - watch
  - apiGroups:
      - ''
    resources:
      - nodes
    verbs:
      - get
  - apiGroups:
      - ''
    resources:
      - services
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - networking.k8s.io
    resources:
      - ingresses
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - ''
    resources:
      - events
    verbs:
      - create
      - patch
  - apiGroups:
      - networking.k8s.io
    resources:
      - ingresses/status
    verbs:
      - update
  - apiGroups:
      - networking.k8s.io
    resources:
      - ingressclasses
    verbs:
      - get
      - list
      - watch
---
# Source: ingress-nginx/templates/clusterrolebinding.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
  name: ingress-nginx
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: ingress-nginx
subjects:
  - kind: ServiceAccount
    name: ingress-nginx
    namespace: ingress-nginx
---
# Source: ingress-nginx/templates/controller-role.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: controller
  name: ingress-nginx
  namespace: ingress-nginx
rules:
  - apiGroups:
      - ''
    resources:
      - namespaces
    verbs:
      - get
  - apiGroups:
      - ''
    resources:
      - configmaps
      - pods
      - secrets
      - endpoints
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - ''
    resources:
      - services
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - networking.k8s.io
    resources:
      - ingresses
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - networking.k8s.io
    resources:
      - ingresses/status
    verbs:
      - update
  - apiGroups:
      - networking.k8s.io
    resources:
      - ingressclasses
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - ''
    resources:
      - configmaps
    resourceNames:
      - ingress-controller-leader
    verbs:
      - get
      - update
  - apiGroups:
      - ''
    resources:
      - configmaps
    verbs:
      - create
  - apiGroups:
      - ''
    resources:
      - events
    verbs:
      - create
      - patch
---
# Source: ingress-nginx/templates/controller-rolebinding.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: controller
  name: ingress-nginx
  namespace: ingress-nginx
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: ingress-nginx
subjects:
  - kind: ServiceAccount
    name: ingress-nginx
    namespace: ingress-nginx
---
# Source: ingress-nginx/templates/controller-service-webhook.yaml
apiVersion: v1
kind: Service
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: controller
  name: ingress-nginx-controller-admission
  namespace: ingress-nginx
spec:
  type: ClusterIP
  ports:
    - name: https-webhook
      port: 443
      targetPort: webhook
      appProtocol: https
  selector:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/component: controller
---
# Source: ingress-nginx/templates/controller-service.yaml
apiVersion: v1
kind: Service
metadata:
  annotations:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: controller
  name: ingress-nginx-controller
  namespace: ingress-nginx
spec:
  type: NodePort
  externalTrafficPolicy: Local
  ipFamilyPolicy: SingleStack
  ipFamilies:
    - IPv4
  ports:
    - name: http
      port: 80
      protocol: TCP
      targetPort: http
      appProtocol: http
    - name: https
      port: 443
      protocol: TCP
      targetPort: https
      appProtocol: https
  selector:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/component: controller
---
# Source: ingress-nginx/templates/controller-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: controller
  name: ingress-nginx-controller
  namespace: ingress-nginx
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: ingress-nginx
      app.kubernetes.io/instance: ingress-nginx
      app.kubernetes.io/component: controller
  revisionHistoryLimit: 10
  minReadySeconds: 0
  template:
    metadata:
      labels:
        app.kubernetes.io/name: ingress-nginx
        app.kubernetes.io/instance: ingress-nginx
        app.kubernetes.io/component: controller
    spec:
      dnsPolicy: ClusterFirst
      containers:
        - name: controller
          image: registry.cn-hangzhou.aliyuncs.com/chenby/controller:v1.2.0 
          imagePullPolicy: IfNotPresent
          lifecycle:
            preStop:
              exec:
                command:
                  - /wait-shutdown
          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
          securityContext:
            capabilities:
              drop:
                - ALL
              add:
                - NET_BIND_SERVICE
            runAsUser: 101
            allowPrivilegeEscalation: true
          env:
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
            - name: LD_PRELOAD
              value: /usr/local/lib/libmimalloc.so
          livenessProbe:
            failureThreshold: 5
            httpGet:
              path: /healthz
              port: 10254
              scheme: HTTP
            initialDelaySeconds: 10
            periodSeconds: 10
            successThreshold: 1
            timeoutSeconds: 1
          readinessProbe:
            failureThreshold: 3
            httpGet:
              path: /healthz
              port: 10254
              scheme: HTTP
            initialDelaySeconds: 10
            periodSeconds: 10
            successThreshold: 1
            timeoutSeconds: 1
          ports:
            - name: http
              containerPort: 80
              protocol: TCP
            - name: https
              containerPort: 443
              protocol: TCP
            - name: webhook
              containerPort: 8443
              protocol: TCP
          volumeMounts:
            - name: webhook-cert
              mountPath: /usr/local/certificates/
              readOnly: true
          resources:
            requests:
              cpu: 100m
              memory: 90Mi
      nodeSelector:
        kubernetes.io/os: linux
      serviceAccountName: ingress-nginx
      terminationGracePeriodSeconds: 300
      volumes:
        - name: webhook-cert
          secret:
            secretName: ingress-nginx-admission
---
# Source: ingress-nginx/templates/controller-ingressclass.yaml
# We don't support namespaced ingressClass yet
# So a ClusterRole and a ClusterRoleBinding is required
apiVersion: networking.k8s.io/v1
kind: IngressClass
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: controller
  name: nginx
  namespace: ingress-nginx
spec:
  controller: k8s.io/ingress-nginx
---
# Source: ingress-nginx/templates/admission-webhooks/validating-webhook.yaml
# before changing this value, check the required kubernetes version
# https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/#prerequisites
apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingWebhookConfiguration
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: admission-webhook
  name: ingress-nginx-admission
webhooks:
  - name: validate.nginx.ingress.kubernetes.io
    matchPolicy: Equivalent
    rules:
      - apiGroups:
          - networking.k8s.io
        apiVersions:
          - v1
        operations:
          - CREATE
          - UPDATE
        resources:
          - ingresses
    failurePolicy: Fail
    sideEffects: None
    admissionReviewVersions:
      - v1
    clientConfig:
      service:
        namespace: ingress-nginx
        name: ingress-nginx-controller-admission
        path: /networking/v1/ingresses
---
# Source: ingress-nginx/templates/admission-webhooks/job-patch/serviceaccount.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: ingress-nginx-admission
  namespace: ingress-nginx
  annotations:
    helm.sh/hook: pre-install,pre-upgrade,post-install,post-upgrade
    helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: admission-webhook
---
# Source: ingress-nginx/templates/admission-webhooks/job-patch/clusterrole.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: ingress-nginx-admission
  annotations:
    helm.sh/hook: pre-install,pre-upgrade,post-install,post-upgrade
    helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: admission-webhook
rules:
  - apiGroups:
      - admissionregistration.k8s.io
    resources:
      - validatingwebhookconfigurations
    verbs:
      - get
      - update
---
# Source: ingress-nginx/templates/admission-webhooks/job-patch/clusterrolebinding.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: ingress-nginx-admission
  annotations:
    helm.sh/hook: pre-install,pre-upgrade,post-install,post-upgrade
    helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: admission-webhook
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: ingress-nginx-admission
subjects:
  - kind: ServiceAccount
    name: ingress-nginx-admission
    namespace: ingress-nginx
---
# Source: ingress-nginx/templates/admission-webhooks/job-patch/role.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: ingress-nginx-admission
  namespace: ingress-nginx
  annotations:
    helm.sh/hook: pre-install,pre-upgrade,post-install,post-upgrade
    helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: admission-webhook
rules:
  - apiGroups:
      - ''
    resources:
      - secrets
    verbs:
      - get
      - create
---
# Source: ingress-nginx/templates/admission-webhooks/job-patch/rolebinding.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: ingress-nginx-admission
  namespace: ingress-nginx
  annotations:
    helm.sh/hook: pre-install,pre-upgrade,post-install,post-upgrade
    helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: admission-webhook
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: ingress-nginx-admission
subjects:
  - kind: ServiceAccount
    name: ingress-nginx-admission
    namespace: ingress-nginx
---
# Source: ingress-nginx/templates/admission-webhooks/job-patch/job-createSecret.yaml
apiVersion: batch/v1
kind: Job
metadata:
  name: ingress-nginx-admission-create
  namespace: ingress-nginx
  annotations:
    helm.sh/hook: pre-install,pre-upgrade
    helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: admission-webhook
spec:
  template:
    metadata:
      name: ingress-nginx-admission-create
      labels:
        helm.sh/chart: ingress-nginx-4.0.10
        app.kubernetes.io/name: ingress-nginx
        app.kubernetes.io/instance: ingress-nginx
        app.kubernetes.io/version: 1.1.0
        app.kubernetes.io/managed-by: Helm
        app.kubernetes.io/component: admission-webhook
    spec:
      containers:
        - name: create
          image: registry.cn-hangzhou.aliyuncs.com/chenby/kube-webhook-certgen:v1.2.0 
          imagePullPolicy: IfNotPresent
          args:
            - create
            - --host=ingress-nginx-controller-admission,ingress-nginx-controller-admission.$(POD_NAMESPACE).svc
            - --namespace=$(POD_NAMESPACE)
            - --secret-name=ingress-nginx-admission
          env:
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
          securityContext:
            allowPrivilegeEscalation: false
      restartPolicy: OnFailure
      serviceAccountName: ingress-nginx-admission
      nodeSelector:
        kubernetes.io/os: linux
      securityContext:
        runAsNonRoot: true
        runAsUser: 2000
---
# Source: ingress-nginx/templates/admission-webhooks/job-patch/job-patchWebhook.yaml
apiVersion: batch/v1
kind: Job
metadata:
  name: ingress-nginx-admission-patch
  namespace: ingress-nginx
  annotations:
    helm.sh/hook: post-install,post-upgrade
    helm.sh/hook-delete-policy: before-hook-creation,hook-succeeded
  labels:
    helm.sh/chart: ingress-nginx-4.0.10
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.1.0
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/component: admission-webhook
spec:
  template:
    metadata:
      name: ingress-nginx-admission-patch
      labels:
        helm.sh/chart: ingress-nginx-4.0.10
        app.kubernetes.io/name: ingress-nginx
        app.kubernetes.io/instance: ingress-nginx
        app.kubernetes.io/version: 1.1.0
        app.kubernetes.io/managed-by: Helm
        app.kubernetes.io/component: admission-webhook
    spec:
      containers:
        - name: patch
          image: registry.cn-hangzhou.aliyuncs.com/chenby/kube-webhook-certgen:v1.1.1 
          imagePullPolicy: IfNotPresent
          args:
            - patch
            - --webhook-name=ingress-nginx-admission
            - --namespace=$(POD_NAMESPACE)
            - --patch-mutating=false
            - --secret-name=ingress-nginx-admission
            - --patch-failure-policy=Fail
          env:
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
          securityContext:
            allowPrivilegeEscalation: false
      restartPolicy: OnFailure
      serviceAccountName: ingress-nginx-admission
      nodeSelector:
        kubernetes.io/os: linux
      securityContext:
        runAsNonRoot: true
        runAsUser: 2000
[root@hello ~/yaml]#

```



## 14.2启用后端，写入配置文件执行

```shell
[root@hello ~/yaml]# vim backend.yaml
[root@hello ~/yaml]# cat backend.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: default-http-backend
  labels:
    app.kubernetes.io/name: default-http-backend
  namespace: kube-system
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: default-http-backend
  template:
    metadata:
      labels:
        app.kubernetes.io/name: default-http-backend
    spec:
      terminationGracePeriodSeconds: 60
      containers:
      - name: default-http-backend
        image: registry.cn-hangzhou.aliyuncs.com/chenby/defaultbackend-amd64:1.5 
        livenessProbe:
          httpGet:
            path: /healthz
            port: 8080
            scheme: HTTP
          initialDelaySeconds: 30
          timeoutSeconds: 5
        ports:
        - containerPort: 8080
        resources:
          limits:
            cpu: 10m
            memory: 20Mi
          requests:
            cpu: 10m
            memory: 20Mi
---
apiVersion: v1
kind: Service
metadata:
  name: default-http-backend
  namespace: kube-system
  labels:
    app.kubernetes.io/name: default-http-backend
spec:
  ports:
  - port: 80
    targetPort: 8080
  selector:
    app.kubernetes.io/name: default-http-backend
[root@hello ~/yaml]#

```



## 14.3安装测试应用

```shell
[root@hello ~/yaml]# vim ingress-demo-app.yaml
[root@hello ~/yaml]#
[root@hello ~/yaml]# cat ingress-demo-app.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: hello-server
spec:
  replicas: 2
  selector:
    matchLabels:
      app: hello-server
  template:
    metadata:
      labels:
        app: hello-server
    spec:
      containers:
      - name: hello-server
        image: registry.cn-hangzhou.aliyuncs.com/lfy_k8s_images/hello-server
        ports:
        - containerPort: 9000
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: nginx-demo
  name: nginx-demo
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nginx-demo
  template:
    metadata:
      labels:
        app: nginx-demo
    spec:
      containers:
      - image: nginx
        name: nginx
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: nginx-demo
  name: nginx-demo
spec:
  selector:
    app: nginx-demo
  ports:
  - port: 8000
    protocol: TCP
    targetPort: 80
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: hello-server
  name: hello-server
spec:
  selector:
    app: hello-server
  ports:
  - port: 8000
    protocol: TCP
    targetPort: 9000
---
apiVersion: networking.k8s.io/v1
kind: Ingress  
metadata:
  name: ingress-host-bar
spec:
  ingressClassName: nginx
  rules:
  - host: "hello.chenby.cn"
    http:
      paths:
      - pathType: Prefix
        path: "/"
        backend:
          service:
            name: hello-server
            port:
              number: 8000
  - host: "demo.chenby.cn"
    http:
      paths:
      - pathType: Prefix
        path: "/nginx"  
        backend:
          service:
            name: nginx-demo
            port:
              number: 8000


```

## 14.4执行部署

```shell
kubectl  apply -f deploy.yaml 

kubectl  apply -f backend.yaml 

# 等创建完成后在执行：
kubectl  apply -f ingress-demo-app.yaml 

kubectl  get ingress
NAME               CLASS   HOSTS                            ADDRESS     PORTS   AGE
ingress-host-bar   nginx   hello.chenby.cn,demo.chenby.cn   192.168.1.12   80      7s

```

## 14.5过滤查看ingress端口

```shell
[root@hello ~/yaml]# kubectl  get svc -A | grep ingress
ingress-nginx          ingress-nginx-controller             NodePort    10.104.231.36    <none>        80:32636/TCP,443:30579/TCP   104s
ingress-nginx          ingress-nginx-controller-admission   ClusterIP   10.101.85.88     <none>        443/TCP                      105s
[root@hello ~/yaml]#

```

# 15.IPv6测试



```shell
#部署应用
[root@k8s-master01 ~]# vim cby.yaml 
[root@k8s-master01 ~]# cat cby.yaml 
apiVersion: apps/v1
kind: Deployment
metadata:
  name: chenby
spec:
  replicas: 3
  selector:
    matchLabels:
      app: chenby
  template:
    metadata:
      labels:
        app: chenby
    spec:
      containers:
      - name: chenby
        image: nginx
        resources:
          limits:
            memory: "128Mi"
            cpu: "500m"
        ports:
        - containerPort: 80

---
apiVersion: v1
kind: Service
metadata:
  name: chenby
spec:
  ipFamilyPolicy: PreferDualStack
  ipFamilies:
  - IPv6
  - IPv4
  type: NodePort
  selector:
    app: chenby
  ports:
  - port: 80
    targetPort: 80
[root@k8s-master01 ~]# kubectl  apply -f cby.yaml

#查看端口
[root@k8s-master01 ~]# kubectl  get svc
NAME           TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)        AGE
chenby         NodePort    fd00::a29c       <none>        80:30779/TCP   5s
[root@k8s-master01 ~]# 

#使用内网访问
[root@localhost yaml]# curl -I http://[fd00::a29c]
HTTP/1.1 200 OK
Server: nginx/1.21.6
Date: Thu, 05 May 2022 10:20:35 GMT
Content-Type: text/html
Content-Length: 615
Last-Modified: Tue, 25 Jan 2022 15:03:52 GMT
Connection: keep-alive
ETag: "61f01158-267"
Accept-Ranges: bytes

[root@localhost yaml]# curl -I http://192.168.1.11:30779
HTTP/1.1 200 OK
Server: nginx/1.21.6
Date: Thu, 05 May 2022 10:20:59 GMT
Content-Type: text/html
Content-Length: 615
Last-Modified: Tue, 25 Jan 2022 15:03:52 GMT
Connection: keep-alive
ETag: "61f01158-267"
Accept-Ranges: bytes

[root@localhost yaml]# 

#使用公网访问

[root@localhost yaml]# curl -I http://[2408:8207:78ca:9fa1::10]:30779
HTTP/1.1 200 OK
Server: nginx/1.21.6
Date: Thu, 05 May 2022 10:20:54 GMT
Content-Type: text/html
Content-Length: 615
Last-Modified: Tue, 25 Jan 2022 15:03:52 GMT
Connection: keep-alive
ETag: "61f01158-267"
Accept-Ranges: bytes


```

# 16.安装命令行自动补全功能

```shell
yum install bash-completion -y
source /usr/share/bash-completion/bash_completion
source <(kubectl completion bash)
echo "source <(kubectl completion bash)" >> ~/.bashrc
```





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