使用kubekey安装kubesphere

下载 KubeKey

KubeKey 是新一代 Kubernetes 和 KubeSphere 安装器，可帮助您以简单、快速、灵活的方式安装 Kubernetes 和 KubeSphere。

export KKZONE=cn
curl -sfL https://get-kk.kubesphere.io | VERSION=v1.0.1 sh -

准备镜像

如果您想让安装加快或者您的机房没有外网，可以使用公司内部的私有仓库，预先把镜像推送到私有仓库中，我这里的仓库使用harbor
下载离线安装工具，我这里只是用这个脚本来下载和推送镜像

curl -L -O https://github.com/kubesphere/ks-installer/releases/download/v3.0.0/offline-installation-tool.sh
curl -L -O https://github.com/kubesphere/ks-installer/releases/download/v3.0.0/images-list.txt

拉取镜像

./offline-installation-tool.sh -s -l images-list.txt -d ./kubesphere-images
在./kubesphere-images目录下能看到以下压缩包
# ll
total 8606088
-rw-r--r-- 1 root root  454465957 Feb  2 15:37 csi-images.tar.gz
-rw-r--r-- 1 root root 1231853258 Feb  2 15:33 example-images.tar.gz
-rw-r--r-- 1 root root  445244294 Feb  2 14:50 istio-images.tar.gz
-rw-r--r-- 1 root root  762326634 Feb  2 14:27 k8s-images.tar.gz
-rw-r--r-- 1 root root 1297767607 Feb  2 14:40 ks-core-images.tar.gz
-rw-r--r-- 1 root root 3439146357 Feb  2 15:19 ks-devops-images.tar.gz
-rw-r--r-- 1 root root  733165078 Feb  2 14:46 ks-logging-images.tar.gz
-rw-r--r-- 1 root root  448651153 Feb  2 15:23 openpitrix-images.tar.gz

推送镜像到私有仓库，待脚本完成即可

./offline-installation-tool.sh -l images-list.txt -d ./kubesphere-images -r hub.evbj.easou.com

创建多节点集群

您可用使用 KubeKey 同时安装 Kubernetes 和 KubeSphere，通过自定义配置文件中的参数创建多节点集群。
创建安装有 KubeSphere 的 Kubernetes 集群（例如 --with-kubesphere v3.0.0）

./kk create config --with-kubernetes v1.17.9 --with-kubesphere v3.0.0

系统将创建默认的 config-sample.yaml 文件。您可以根据您的环境修改此文件。

apiVersion: kubekey.kubesphere.io/v1alpha1
kind: Cluster
metadata:
  name: ESCloud
spec:
  hosts:
  - {name: kubesphere001, address: 10.26.31.34, internalAddress: 10.26.31.34, privateKeyPath: "~/.ssh/id_dsa", port: 20755}
  - {name: kubesphere002, address: 10.26.31.36, internalAddress: 10.26.31.36, privateKeyPath: "~/.ssh/id_dsa", port: 20755}
  - {name: kubesphere003, address: 10.26.31.42, internalAddress: 10.26.31.42, privateKeyPath: "~/.ssh/id_dsa", port: 20755}
  - {name: kubesphere004, address: 10.26.31.46, internalAddress: 10.26.31.46, privateKeyPath: "~/.ssh/id_dsa", port: 20755}
  - {name: kubesphere005, address: 10.26.31.118, internalAddress: 10.26.31.118, privateKeyPath: "~/.ssh/id_dsa", port: 20755}
  - {name: kubesphere006, address: 10.26.31.119, internalAddress: 10.26.31.119, privateKeyPath: "~/.ssh/id_dsa", port: 20755}
  - {name: kubesphere007, address: 10.26.31.120, internalAddress: 10.26.31.120, privateKeyPath: "~/.ssh/id_dsa", port: 20755}
  - {name: kubesphere008, address: 10.26.31.121, internalAddress: 10.26.31.121, privateKeyPath: "~/.ssh/id_dsa", port: 20755}
  roleGroups:
    etcd:
    - kubesphere001
    - kubesphere002
    - kubesphere003
    master: 
    - kubesphere001
    - kubesphere002
    - kubesphere003
    worker:
    - kubesphere004
    - kubesphere005
    - kubesphere006
    - kubesphere007
    - kubesphere008
  controlPlaneEndpoint:
    domain: lb.kubesphere.local
    address: ""
    port: "6443"
  kubernetes:
    version: v1.17.9
    imageRepo: kubesphere
    clusterName: cluster.local
  network:
    plugin: calico
    kubePodsCIDR: 10.233.64.0/18
    kubeServiceCIDR: 10.233.0.0/18
  registry:
    registryMirrors: []
    insecureRegistries: ["hub.kubeops.net"]
    privateRegistry: "hub.kubeops.net"
  addons: []


---
apiVersion: installer.kubesphere.io/v1alpha1
kind: ClusterConfiguration
metadata:
  name: ks-installer
  namespace: kubesphere-system
  labels:
    version: v3.0.0
spec:
  local_registry: "hub.kubeops.net"
  persistence:
    storageClass: ""
  authentication:
    jwtSecret: ""
  etcd:
    monitoring: true
    endpointIps: localhost
    port: 2379
    tlsEnable: true
  common:
    es:
      elasticsearchDataVolumeSize: 20Gi
      elasticsearchMasterVolumeSize: 4Gi
      elkPrefix: logstash
      logMaxAge: 7
    mysqlVolumeSize: 20Gi
    minioVolumeSize: 20Gi
    etcdVolumeSize: 20Gi
    openldapVolumeSize: 2Gi
    redisVolumSize: 2Gi
  console:
    enableMultiLogin: true  # enable/disable multi login
    port: 30880
  alerting:
    enabled: false
  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
    logsidecarReplicas: 2
  metrics_server:
    enabled: true
  monitoring:
    prometheusMemoryRequest: 400Mi
    prometheusVolumeSize: 20Gi
  multicluster:
    clusterRole: none  # host | member | none
  networkpolicy:
    enabled: false
  notification:
    enabled: false
  openpitrix:
    enabled: false
  servicemesh:
    enabled: false

环境初始化

./kk init os -f config-sample.yaml
INFO[14:04:19 CST] Init operating system
INFO[14:04:20 CST] Start initializing kubesphere008 [10.26.31.121]  node=10.26.31.121
INFO[14:04:20 CST] Start initializing kubesphere001 [10.26.31.34]  node=10.26.31.34
INFO[14:04:20 CST] Start initializing kubesphere003 [10.26.31.42]  node=10.26.31.42
INFO[14:04:20 CST] Start initializing kubesphere005 [10.26.31.118]  node=10.26.31.118
INFO[14:04:20 CST] Start initializing kubesphere006 [10.26.31.119]  node=10.26.31.119
INFO[14:04:20 CST] Start initializing kubesphere004 [10.26.31.46]  node=10.26.31.46
INFO[14:04:20 CST] Start initializing kubesphere007 [10.26.31.120]  node=10.26.31.120
INFO[14:04:20 CST] Start initializing kubesphere002 [10.26.31.36]  node=10.26.31.36
INFO[14:06:34 CST] Complete initialization kubesphere005 [10.26.31.118]  node=10.26.31.118
INFO[14:06:56 CST] Complete initialization kubesphere002 [10.26.31.36]  node=10.26.31.36
INFO[14:07:04 CST] Complete initialization kubesphere006 [10.26.31.119]  node=10.26.31.119
INFO[14:07:04 CST] Complete initialization kubesphere007 [10.26.31.120]  node=10.26.31.120
INFO[14:07:07 CST] Complete initialization kubesphere003 [10.26.31.42]  node=10.26.31.42
INFO[14:07:11 CST] Complete initialization kubesphere004 [10.26.31.46]  node=10.26.31.46
INFO[14:08:23 CST] Complete initialization kubesphere001 [10.26.31.34]  node=10.26.31.34
INFO[14:10:57 CST] Complete initialization kubesphere008 [10.26.31.121]  node=10.26.31.121
INFO[14:10:57 CST] Init operating system successful.

部署

以上准备工作完成且再次检查配置文件无误后，执行安装。

./kk create cluster -f config-sample.yaml
+-------------------------+------+------+---------+----------+-------+-------+-----------+--------+------------+-------------+------------------+--------------+
| name                    | sudo | curl | openssl | ebtables | socat | ipset | conntrack | docker | nfs client | ceph client | glusterfs client | time         |
+-------------------------+------+------+---------+----------+-------+-------+-----------+--------+------------+-------------+------------------+--------------+
| kubesphere005 | y    | y    | y       | y        | y     | y     | y         | y      | y          | y           | y                | CST 14:16:55 |
| kubesphere006 | y    | y    | y       | y        | y     | y     | y         | y      | y          | y           | y                | CST 14:16:55 |
| kubesphere007 | y    | y    | y       | y        | y     | y     | y         | y      | y          | y           | y                | CST 14:16:55 |
| kubesphere004 | y    | y    | y       | y        | y     | y     | y         | y      | y          | y           | y                | CST 14:16:55 |
| kubesphere001 | y    | y    | y       | y        | y     | y     | y         | y      | y          | y           | y                | CST 14:16:55 |
| kubesphere003 | y    | y    | y       | y        | y     | y     | y         | y      | y          | y           | y                | CST 14:16:55 |
| kubesphere002 | y    | y    | y       | y        | y     | y     | y         | y      | y          | y           | y                | CST 14:16:55 |
| kubesphere008 | y    | y    | y       | y        | y     | y     | y         | y      | y          | y           | y                | CST 14:16:55 |
+-------------------------+------+------+---------+----------+-------+-------+-----------+--------+------------+-------------+------------------+--------------+

This is a simple check of your environment.
Before installation, you should ensure that your machines meet all requirements specified at
https://github.com/kubesphere/kubekey#requirements-and-recommendations

Continue this installation? [yes/no]: yes
INFO[14:17:25 CST] Downloading Installation Files
INFO[14:17:25 CST] Downloading kubeadm ...

**************************************************
#####################################################
###              Welcome to KubeSphere!           ###
#####################################################

Console: http://10.26.31.34:30880
Account: admin
Password: P@88w0rd

NOTES：
  1. After logging 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 ready.
  2. Please modify the default password after login.

#####################################################
https://kubesphere.io             2021-02-05 15:47:21
#####################################################

至此kubesphere安装成功，可以通过浏览器访问http://10.26.31.34:30880 验证

验证

您可以使用默认的帐户和密码 admin/P@88w0rd 登录 KubeSphere 控制台并开始使用 KubeSphere。请在登录后修改默认密码。

image.png

登录后如下图