Kubernetes-Service介绍(三)-Ingress(含最新版安装踩坑实践) (3)

检查资源的访问，这里使用nginx-ingress-controller暴露的端口32368访问服务的信息；

#第一种方案可以在对应Node上设置host文件
echo '172.21.122.231 aa.bb.cc' >> /etc/hosts
curl aa.bb.cc:32368
#使用curl方式
curl -v :32368 -H 'host: aa.bb.cc'

image.png DaemonSet+HostNetwork+nodeSelector模式

清除资源；

kubectl delete -f v.1.0.0-deploy.yaml
kubectl delete -f nginx-nodeport-service.yaml
kubectl delete -f nodeport-ingress.yaml

给Node节点打标签为ingress=nginx；

kubectl label nodes demo-work-1 ingress=nginx

编辑v1.0.0-deploy.yaml，找到deployment部分，将kind变为DaemonSet，nodeSelector节点选择器变为ingress等于nginx，增加网络为hostNetwork等于true，这里需要在args新增--watch-ingress-without-class，这样ingress规则才能生效，这个是新版的以后不太一样的地方，链接提取码: dbag；

apiVersion: apps/v1
kind: DaemonSet
metadata:
  labels:
    helm.sh/chart: ingress-nginx-4.0.1
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/version: 1.0.0
    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: willdockerhub/ingress-nginx-controller:v1.0.0
          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=http://www.likecs.com/usr/local/certificates/cert
            - --validating-webhook-key=http://www.likecs.com/usr/local/certificates/key
            - --watch-ingress-without-class=true  # 新增
          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:
        ingress: nginx
      hostNetwork: true
      serviceAccountName: ingress-nginx
      terminationGracePeriodSeconds: 300
      volumes:
        - name: webhook-cert
          secret:
            secretName: ingress-nginx-admission