azure-如何在service-node-port-range默认范围之外的NodePort上启动kubernetes服务?

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我一直在尝试在默认端口范围之外的NodePort上启动kubernetes-dashboard(以及其他服务),但收效甚微,
这是我的设置:
云提供商:Azure(不是天蓝色的容器服务)
操作系统:CentOS 7

这是我尝试过的:

更新主机

$yum update
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安装kubeadm

$cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=http://yum.kubernetes.io/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg
       https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
EOF
$setenforce 0
$yum install -y docker kubelet kubeadm kubectl kubernetes-cni
$systemctl enable docker && systemctl start docker
$systemctl enable kubelet && systemctl start kubelet
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使用kubeadm启动集群

$kubeadm init
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允许在主节点上运行容器,因为我们有一个单节点集群

$kubectl taint nodes --all dedicated-
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安装Pod网络

$kubectl apply -f https://git.io/weave-kube
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我们的kubernetes-dashboard部署(@〜/ kubernetes-dashboard.yaml

# Copyright 2015 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License,Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,software
# distributed under the License is distributed on an "AS IS" BASIS,# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,either express or     implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Configuration to deploy release version of the Dashboard UI.
#
# Example usage: kubectl create -f <this_file>

kind: Deployment
apiVersion: extensions/v1beta1
Metadata:
  labels:
    app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kube-system
spec:
  replicas: 1
  selector:
    matchLabels:
      app: kubernetes-dashboard
  template:
    Metadata:
      labels:
        app: kubernetes-dashboard
      # Comment the following annotation if Dashboard must not be deployed on master
      annotations:
        scheduler.alpha.kubernetes.io/tolerations: |
          [
            {
              "key": "dedicated","operator": "Equal","value": "master","effect": "NoSchedule"
            }
          ]
    spec:
      containers:
      - name: kubernetes-dashboard
        image: gcr.io/google_containers/kubernetes-dashboard-amd64:v1.5.1
        imagePullPolicy: Always
        ports:
        - containerPort: 9090
          protocol: TCP
        args:
          # Uncomment the following line to manually specify Kubernetes API server Host
          # If not specified,Dashboard will attempt to auto discover the API server and connect
          # to it. Uncomment only if the default does not work.
          # - --apiserver-host=http://my-address:port
        livenessProbe:
          httpGet:
            path: /
            port: 9090
          initialDelaySeconds: 30
          timeoutSeconds: 30
---
kind: Service
apiVersion: v1
Metadata:
  labels:
    app: kubernetes-dashboard
  name: kubernetes-dashboard
  namespace: kube-system
spec:
  type: NodePort
  ports:
  - port: 8880
    targetPort: 9090
    nodePort: 8880
  selector:
    app: kubernetes-dashboard
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创建我们的部署

$kubectl create -f ~/kubernetes-dashboard.yaml
deployment "kubernetes-dashboard" created
The Service "kubernetes-dashboard" is invalid: spec.ports[0].nodePort: Invalid value: 8880: provided port is not in the valid range. The range of valid ports is 30000-32767
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我发现要更改有效端口的范围,可以在kube-apiserver上设置service-node-port-range选项以允许不同的端口范围,
所以我尝试了这个:

$kubectl get po --namespace=kube-system
NAME                                    READY     STATUS    RESTARTS       AGE
dummy-2088944543-lr2zb                  1/1       Running   0              31m
etcd-test2-highr                        1/1       Running   0              31m
kube-apiserver-test2-highr              1/1       Running   0              31m
kube-controller-manager-test2-highr     1/1       Running   2              31m
kube-discovery-1769846148-wmbhb         1/1       Running   0              31m
kube-dns-2924299975-8vwjm               4/4       Running   0              31m
kube-proxy-0ls9c                        1/1       Running   0              31m
kube-scheduler-test2-highr              1/1       Running   2              31m
kubernetes-dashboard-3203831700-qrvdn   1/1       Running   0              22s
weave-net-m9rxh                         2/2       Running   0              31m
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将“ –service-node-port-range = 8880-8880”添加到kube-apiserver-test2-highr

$kubectl edit po kube-apiserver-test2-highr --namespace=kube-system
{
  "kind": "Pod","apiVersion": "v1","Metadata": {
    "name": "kube-apiserver","namespace": "kube-system","creationTimestamp": null,"labels": {
      "component": "kube-apiserver","tier": "control-plane"
    }
  },"spec": {
    "volumes": [
      {
        "name": "k8s","hostPath": {
          "path": "/etc/kubernetes"
        }
      },{
        "name": "certs","hostPath": {
          "path": "/etc/ssl/certs"
        }
      },{
        "name": "pki","hostPath": {
          "path": "/etc/pki"
        }
      }
    ],"containers": [
      {
        "name": "kube-apiserver","image": "gcr.io/google_containers/kube-apiserver-amd64:v1.5.3","command": [
          "kube-apiserver","--insecure-bind-address=127.0.0.1","--admission-control=NamespaceLifecycle,LimitRanger,ServiceAccount,PersistentVolumeLabel,DefaultStorageClass,ResourceQuota","--service-cluster-ip-range=10.96.0.0/12","--service-node-port-range=8880-8880","--service-account-key-file=/etc/kubernetes/pki/apiserver-key.pem","--client-ca-file=/etc/kubernetes/pki/ca.pem","--tls-cert-file=/etc/kubernetes/pki/apiserver.pem","--tls-private-key-file=/etc/kubernetes/pki/apiserver-key.pem","--token-auth-file=/etc/kubernetes/pki/tokens.csv","--secure-port=6443","--allow-privileged","--advertise-address=100.112.226.5","--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname","--anonymous-auth=false","--etcd-servers=http://127.0.0.1:2379"
        ],"resources": {
          "requests": {
            "cpu": "250m"
          }
        },"volumeMounts": [
          {
            "name": "k8s","readOnly": true,"mountPath": "/etc/kubernetes/"
          },{
            "name": "certs","mountPath": "/etc/ssl/certs"
          },{
            "name": "pki","mountPath": "/etc/pki"
          }
        ],"livenessProbe": {
          "httpGet": {
            "path": "/healthz","port": 8080,"host": "127.0.0.1"
          },"initialDelaySeconds": 15,"timeoutSeconds": 15,"failureThreshold": 8
        }
      }
    ],"hostNetwork": true
  },"status": {}

$:wq
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以下是截断的响应

# pods "kube-apiserver-test2-highr" was not valid:
# * spec: Forbidden: pod updates may not change fields other than `containers[*].image` or `spec.activeDeadlineSeconds`
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所以我尝试了一种不同的方法,我使用上述相同的更改编辑了kube-apiserver的部署文件
并运行以下命令:

$kubectl apply -f /etc/kubernetes/manifests/kube-apiserver.json --namespace=kube-system
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并得到此响应:

The connection to the server localhost:8080 was refused - did you specify the right host or port?
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所以现在我被卡住了,我该如何更改有效端口的范围?

最佳答案
您指定的–service-node-port-range = 8880-8880错误.您仅将其设置为一个端口,将其设置为一个范围.

第二个问题:您将服务设置为使用9090,但不在此范围内.

 ports:
  - port: 80
    targetPort: 9090
    nodePort: 9090
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API Server也应该有一个部署,请尝试在部署本身中编辑端口范围并删除api服务器pod,以便通过新配置重新创建它.

原文链接:https://www.f2er.com/docker/532708.html

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