k8s——通过暴漏端口实现外部访问服务

通过nodeport暴漏端口

修改nginx-service.yaml文件 apiVersion: v1 kind: Service metadata: name: nginxdeploy spec: type: NodePort ports: - port: 82 protocol: TCP targetPort: 80 name: http nodePort: 30055 selector: name: nginxdeploy

创建service

kubectl create -f nginx-service.yaml

查看

kubectl get svc

访问

任意节点IP+端口号

通过ingress暴露端口

安装ingress

编写ingress.yaml apiVersion: v1 kind: Namespace metadata: name: nginx-ingress --- apiVersion: v1 kind: ServiceAccount metadata: name: nginx-ingress namespace: nginx-ingress --- apiVersion: v1 kind: Secret metadata: name: default-server-secret namespace: nginx-ingress type: Opaque data: tls.crt: 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 tls.key: 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 --- kind: ConfigMap apiVersion: v1 metadata: name: nginx-config namespace: nginx-ingress data: server-names-hash-bucket-size: "1024" --- kind: ClusterRole apiVersion: rbac.authorization.k8s.io/v1beta1 metadata: name: nginx-ingress rules: - apiGroups: - "" resources: - services - endpoints verbs: - get - list - watch - apiGroups: - "" resources: - secrets verbs: - get - list - watch - apiGroups: - "" resources: - configmaps verbs: - get - list - watch - update - create - apiGroups: - "" resources: - pods verbs: - list - apiGroups: - "" resources: - events verbs: - create - patch - apiGroups: - extensions resources: - ingresses verbs: - list - watch - get - apiGroups: - "extensions" resources: - ingresses/status verbs: - update - apiGroups: - k8s.nginx.org resources: - virtualservers - virtualserverroutes verbs: - list - watch - get --- kind: ClusterRoleBinding apiVersion: rbac.authorization.k8s.io/v1beta1 metadata: name: nginx-ingress subjects: - kind: ServiceAccount name: nginx-ingress namespace: nginx-ingress roleRef: kind: ClusterRole name: nginx-ingress apiGroup: rbac.authorization.k8s.io --- apiVersion: extensions/v1beta1 kind: DaemonSet metadata: name: nginx-ingress namespace: nginx-ingress annotations: prometheus.io/scrape: "true" prometheus.io/port: "9113" spec: selector: matchLabels: app: nginx-ingress template: metadata: labels: app: nginx-ingress spec: hostNetwork: true serviceAccountName: nginx-ingress containers: - image: nginx/nginx-ingress name: nginx-ingress ports: - name: http containerPort: 80 hostPort: 80 - name: https containerPort: 443 hostPort: 443 - name: prometheus containerPort: 9113 env: - name: POD_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace - name: POD_NAME valueFrom: fieldRef: fieldPath: metadata.name args: - -nginx-configmaps=$(POD_NAMESPACE)/nginx-config - -default-server-tls-secret=$(POD_NAMESPACE)/default-server-secret - -enable-prometheus-metrics

创建ingress

kubectl create -f ingress.yaml

解析一个域名到任意node节点，访问域名将得到一个404页面

创建nginx-service.yanl

apiVersion: v1 kind: Service metadata: name: nginx labels: app: nginx spec: selector: app: nginx ports: - name: nginx protocol: TCP port: 80 targetPort: 80 kubectl create -f nginx-service.yaml

创建nginx-ingress.yaml

apiVersion: networking.k8s.io/v1beta1 kind: Ingress metadata: name: my-ingress-for-nginx # Ingress 的名字，仅用于标识 spec: rules: # Ingress 中定义 L7 路由规则 - host: node # 根据 virtual hostname 进行路由（使用自己的域名） http: paths: # 按路径进行路由 - path: / backend: serviceName: nginx # 指定后端的 Service 为之前创建的 nginx-service servicePort: 80 kubectl create -f nginx-ingress.yaml 配置dns解析，在浏览器输入域名即可