【3】Linux多节点部署KubeSphere|最简单的安装方法

目录

步骤1：准备三台服务器

步骤2：下载KubeKey

步骤3：创建集群

1. 创建示例配置文件

2. 编辑配置文件

3. 使用配置文件创建集群

4. 验证安装

步骤1：准备三台服务器

• 4c8g (master)
• 8c16g * 2 (worker)
• centos7.9
• 内网互通
• 每个机器有自己域名
• 防火墙开放30000~32767端口

 #修改主机名字

hostnamectl set-hostname 主机IP

步骤2：下载KubeKey（master节点）

先执行以下命令以确保您从正确的区域下载 KubeKey。

export KKZONE=cn

执行以下命令下载 KubeKey：

curl -sfL https://get-kk.kubesphere.io | VERSION=v3.0.2 sh -

为 kk 添加可执行权限

chmod +x kk

步骤3：创建集群（master节点）

1. 创建示例配置文件

命令如下

./kk create config [--with-kubernetes version] [--with-kubesphere version] [(-f | --file) path]

./kk create config --with-kubernetes v1.20.4 --with-kubesphere v3.1.1

2. 编辑配置文件

将创建默认文件 config-sample.yaml。编辑文件，以下是多节点集群（具有一个主节点）配置文件的示例。

spec:
 
  hosts:
 
  - {name: master, address: 192.168.0.2, internalAddress: 192.168.0.2, user: ubuntu, password: Testing123}
 
  - {name: node1, address: 192.168.0.3, internalAddress: 192.168.0.3, user: ubuntu, password: Testing123}
 
  - {name: node2, address: 192.168.0.4, internalAddress: 192.168.0.4, user: ubuntu, password: Testing123}
 
  roleGroups:
 
    etcd:
 
    - master
 
    control-plane:
 
    - master
 
    worker:
 
    - node1
 
    - node2
 
  controlPlaneEndpoint:
 
    domain: lb.kubesphere.local
 
    address: ""
 
    port: 6443

 我自己的修改后的：

apiVersion: kubekey.kubesphere.io/v1alpha2
kind: Cluster
metadata:
  name: sample
spec:
  hosts:
  - {name: master, address: 172.31.0.2, internalAddress: 172.31.0.2, user: root, password: "W1234567@123"}
  - {name: node1, address: 172.31.0.3, internalAddress: 172.31.0.3, user: root, password: "W1234567@123"}
  - {name: node2, address: 172.31.0.4, internalAddress: 172.31.0.4, user: root, password: "W1234567q@123"}
  roleGroups:
    etcd:
    - master
    control-plane:
    - master
    worker:
    - master
    - node1
    - node2
  controlPlaneEndpoint:
    ## Internal loadbalancer for apiservers 
    # internalLoadbalancer: haproxy
 
    domain: lb.kubesphere.local
    address: ""
    port: 6443
  kubernetes:
    version: v1.20.4
    clusterName: cluster.local
    autoRenewCerts: true
    containerManager: docker
  etcd:
    type: kubekey
  network:
    plugin: calico
    kubePodsCIDR: 10.233.64.0/18
    kubeServiceCIDR: 10.233.0.0/18
    ## multus support. https://github.com/k8snetworkplumbingwg/multus-cni
    multusCNI:
      enabled: false
  registry:
    privateRegistry: ""
    namespaceOverride: ""
    registryMirrors: []
    insecureRegistries: []
  addons: []
 
 
---
apiVersion: installer.kubesphere.io/v1alpha1
kind: ClusterConfiguration
metadata:
  name: ks-installer
  namespace: kubesphere-system
  labels:
    version: v3.1.1
spec:
  persistence:
    storageClass: ""
  authentication:
    jwtSecret: ""
  zone: ""
  local_registry: ""
  etcd:
    monitoring: false
    endpointIps: localhost
    port: 2379
    tlsEnable: true
  common:
    redis:
      enabled: false
    redisVolumSize: 2Gi
    openldap:
      enabled: false
    openldapVolumeSize: 2Gi
    minioVolumeSize: 20Gi
    monitoring:
      endpoint: http://prometheus-operated.kubesphere-monitoring-system.svc:9090
    es:
      elasticsearchMasterVolumeSize: 4Gi
      elasticsearchDataVolumeSize: 20Gi
      logMaxAge: 7
      elkPrefix: logstash
      basicAuth:
        enabled: false
        username: ""
        password: ""
      externalElasticsearchUrl: ""
      externalElasticsearchPort: ""
  console:
    enableMultiLogin: true
    port: 30880
  alerting:
    enabled: false
    # thanosruler:
    #   replicas: 1
    #   resources: {}
  auditing:
    enabled: false
  devops:
    enabled: false
    jenkinsMemoryLim: 2Gi
    jenkinsMemoryReq: 1500Mi
    jenkinsVolumeSize: 8Gi
    jenkinsJavaOpts_Xms: 512m
    jenkinsJavaOpts_Xmx: 512m
    jenkinsJavaOpts_MaxRAM: 2g
  events:
    enabled: false
    ruler:
      enabled: true
      replicas: 2
  logging:
    enabled: false
    logsidecar:
      enabled: true
      replicas: 2
  metrics_server:
    enabled: false
  monitoring:
    storageClass: ""
    prometheusMemoryRequest: 400Mi
    prometheusVolumeSize: 20Gi
  multicluster:
    clusterRole: none
  network:
    networkpolicy:
      enabled: false
    ippool:
      type: none
    topology:
      type: none
  openpitrix:
    store:
      enabled: false
  servicemesh:
    enabled: false
  kubeedge:
    enabled: false
    cloudCore:
      nodeSelector: {"node-role.kubernetes.io/worker": ""}
      tolerations: []
      cloudhubPort: "10000"
      cloudhubQuicPort: "10001"
      cloudhubHttpsPort: "10002"
      cloudstreamPort: "10003"
      tunnelPort: "10004"
      cloudHub:
        advertiseAddress:
          - ""
        nodeLimit: "100"
      service:
        cloudhubNodePort: "30000"
        cloudhubQuicNodePort: "30001"
        cloudhubHttpsNodePort: "30002"
        cloudstreamNodePort: "30003"
        tunnelNodePort: "30004"
    edgeWatcher:
      nodeSelector: {"node-role.kubernetes.io/worker": ""}
      tolerations: []
      edgeWatcherAgent:
        nodeSelector: {"node-role.kubernetes.io/worker": ""}
        tolerations: []
 
 

3. 使用配置文件创建集群

./kk create cluster -f config-sample.yaml

 我在这里提示有其他的需要安装下图：

22:33:18 CST [ConfirmModule] Display confirmation form
+--------+------+------+---------+----------+-------+-------+---------+-----------+--------+--------+------------+------------+-------------+------------------+--------------+
| name   | sudo | curl | openssl | ebtables | socat | ipset | ipvsadm | conntrack | chrony | docker | containerd | nfs client | ceph client | glusterfs client | time         |
+--------+------+------+---------+----------+-------+-------+---------+-----------+--------+--------+------------+------------+-------------+------------------+--------------+
| master | y    | y    | y       |          |       |       |         |           | y      |        |            |            |             |                  | CST 22:33:18 |
| node1  | y    | y    | y       |          |       |       |         |           | y      |        |            |            |             |                  | CST 22:33:18 |
| node2  | y    | y    | y       |          |       |       |         |           | y      |        |            |            |             |                  | CST 22:33:18 |
+--------+------+------+---------+----------+-------+-------+---------+-----------+--------+--------+------------+------------+-------------+------------------+--------------+
 
22:33:18 CST [ERRO] master: conntrack is required.
22:33:18 CST [ERRO] master: socat is required.
22:33:18 CST [ERRO] node1: conntrack is required.
22:33:18 CST [ERRO] node1: socat is required.
22:33:18 CST [ERRO] node2: conntrack is required.
22:33:18 CST [ERRO] node2: socat is required

 然后根据缺少每个节点安装好

yum install -y  conntrack && yum install -y socat

 然后继续下面这个命令安装：

./kk create cluster -f config-sample.yaml

整个安装过程可能需要 10 到 20 分钟，具体取决于您的计算机和网络环境

4. 验证安装

安装完成后，您会看到如下内容

#####################################################
###              Welcome to KubeSphere!           ###
#####################################################
 
 
 
Console: http://192.168.0.2:30880
 
Account: admin
 
Password: P@88w0rd
 
 
 
NOTES：
 
  1. After you log into the console, please check the
 
     monitoring status of service components in
 
     the "Cluster Management". If any service is not
 
     ready, please wait patiently until all components
 
     are up and running.
 
  2. Please change the default password after login.
 
 
 
#####################################################
https://kubesphere.io             20xx-xx-xx xx:xx:xx
#####################################################

现在，您可以通过 <NodeIP:30880 使用默认帐户和密码 (admin/P@88w0rd) 访问 KubeSphere 的 Web 控制台。