Kubesphere-多节点安装
2024-05-10 14:30:26
Kubesphere-多节点安装
- 主机清单
- 基础环境准备
- 1. 安装docker
- 2. 安装依赖
- 3. 配置ssh互访
- 4. 下载 KubeKey
- 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
- 安装openelb
- 1. 安装
- 2. 启用strictARP
- 3. 配置EIP
- 4. 如何使用
- 1. 创建deployment
- 2. 创建service
- 3. 验证
主机清单
| 序号 | IP | 主机名 | 配置 |
|---|---|---|---|
| 1 | 192.168.85.161 | k8s-master | 8VCPU 32GB |
| 2 | 192.168.85.162 | k8s-node1 | 8VCPU 32GB |
| 3 | 192.168.85.163 | k8s-node2 | 8VCPU 32GB |
| 4 | 192.168.85.164 | nfs-server | 8VCPU 32GB |
基础环境准备
nfs服务器安装部署(略)
1. 安装docker
curl -sSL https://get.daocloud.io/docker | sh
# 加速
curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://f1361db2.m.daocloud.io
2. 安装依赖
yum -y install socat conntrack ebtables ipset net-tools
3. 配置ssh互访
# 所有节点上执行
ssh-keygen
ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.85.161
ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.85.162
ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.85.163
4. 下载 KubeKey
# 只在master上执行即可
export KKZONE=cn
curl -sfL https://get-kk.kubesphere.io | VERSION=v2.0.0 sh -
创建集群
1. 创建示例配置文件
./kk create config --with-kubesphere
2. 编辑配置文件
插件根据使用情况和服务器资源大小，自行安装。
apiVersion: kubekey.kubesphere.io/v1alpha2
kind: Cluster
metadata:name: sample
spec:hosts: # 配置主机清单- {name: k8s-master, address: 192.168.85.161, internalAddress: 192.168.85.161, privateKeyPath: "~/.ssh/id_rsa"}- {name: k8s-node1, address: 192.168.85.162, internalAddress: 192.168.85.162, privateKeyPath: "~/.ssh/id_rsa"}- {name: k8s-node2, address: 192.168.85.163, internalAddress: 192.168.85.163, privateKeyPath: "~/.ssh/id_rsa"}roleGroups:etcd: # etcd 节点列表- k8s-master control-plane: # 主机节点列表- k8s-master worker: # 工作节点列表- k8s-node1- k8s-node2controlPlaneEndpoint:## Internal loadbalancer for apiservers # internalLoadbalancer: haproxydomain: lb.kubesphere.localaddress: ""port: 6443kubernetes:version: v1.21.5clusterName: cluster.localnetwork:plugin: calicokubePodsCIDR: 10.233.64.0/18kubeServiceCIDR: 10.233.0.0/18multusCNI:enabled: falseregistry:plainHTTP: falseprivateRegistry: ""namespaceOverride: ""registryMirrors: []insecureRegistries: []addons: - name: nfs-client # 使用nfs作为持久化存储namespace: kube-systemsources: chart: name: nfs-client-provisionerrepo: https://charts.kubesphere.io/mainvalues:- storageClass.defaultClass=true- nfs.server=192.168.85.164- nfs.path=/data---
apiVersion: installer.kubesphere.io/v1alpha1
kind: ClusterConfiguration
metadata:name: ks-installernamespace: kubesphere-systemlabels:version: v3.2.1
spec:persistence:storageClass: ""authentication:jwtSecret: ""local_registry: ""namespace_override: ""# dev_tag: ""etcd:monitoring: true # 根据情况决定是否开启endpointIps: localhostport: 2379tlsEnable: truecommon:core:console:enableMultiLogin: trueport: 30880type: NodePort# apiserver:# resources: {}# controllerManager:# resources: {}redis:enabled: true # 根据情况决定是否开启volumeSize: 2Giopenldap:enabled: true # 根据情况决定是否开启volumeSize: 2Giminio:volumeSize: 20Gimonitoring:# type: externalendpoint: http://prometheus-operated.kubesphere-monitoring-system.svc:9090GPUMonitoring:enabled: true # 根据情况决定是否开启gpu:kinds: - resourceName: "nvidia.com/gpu"resourceType: "GPU"default: truees:# master:# volumeSize: 4Gi# replicas: 1# resources: {}# data:# volumeSize: 20Gi# replicas: 1# resources: {}logMaxAge: 7elkPrefix: logstashbasicAuth:enabled: false # 是否使用验证username: ""password: ""externalElasticsearchHost: ""externalElasticsearchPort: ""alerting:enabled: true # 根据情况决定是否开启# thanosruler:# replicas: 1# resources: {}auditing:enabled: true # 根据情况决定是否开启# operator:# resources: {}# webhook:# resources: {}devops:enabled: true # 根据情况决定是否开启jenkinsMemoryLim: 2GijenkinsMemoryReq: 1500MijenkinsVolumeSize: 8GijenkinsJavaOpts_Xms: 512mjenkinsJavaOpts_Xmx: 512mjenkinsJavaOpts_MaxRAM: 2gevents:enabled: true# operator:# resources: {}# exporter:# resources: {}# ruler:# enabled: true# replicas: 2# resources: {}logging:enabled: truecontainerruntime: dockerlogsidecar:enabled: truereplicas: 2# resources: {}metrics_server:enabled: truemonitoring:storageClass: ""# kube_rbac_proxy:# resources: {}# kube_state_metrics:# resources: {}# prometheus:# replicas: 1# volumeSize: 20Gi# resources: {}# operator:# resources: {}# adapter:# resources: {}# node_exporter:# resources: {}# alertmanager:# replicas: 1# resources: {}# notification_manager:# resources: {}# operator:# resources: {}# proxy:# resources: {}gpu:nvidia_dcgm_exporter:enabled: true# resources: {}multicluster:clusterRole: none network:networkpolicy:enabled: trueippool:type: nonetopology:type: noneopenpitrix:store:enabled: falseservicemesh:enabled: truekubeedge: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
- 验证安装
安装完成后，您会看到如下内容：
#####################################################
### Welcome to KubeSphere! ###
#####################################################Console: http://192.168.85.161:30880
Account: admin
Password: P@88w0rdNOTES：1. After you log into the console, please check themonitoring status of service components in"Cluster Management". If any service is notready, please wait patiently until all componentsare up and running.2. Please change the default password after login.#####################################################
https://kubesphere.io 2022-07-28 03:10:29
#####################################################
安装openelb
1. 安装
kubectl apply -f https://raw.githubusercontent.com/openelb/openelb/master/deploy/openelb.yaml
2. 启用strictARP
需要为 kube-proxy 启用 strictARP，以便 Kubernetes 集群中的所有网卡停止响应其他网卡的 ARP 请求，而由 OpenELB 处理 ARP 请求。
kubectl edit configmap kube-proxy -n kube-system
...
ipvs:strictARP: true
...
然后执行下面的命令重启 kube-proxy 组件即可：
kubectl rollout restart daemonset kube-proxy -n kube-system
3. 配置EIP
apiVersion: network.kubesphere.io/v1alpha2
kind: Eip
metadata:name: eip-poolannotations:eip.openelb.kubesphere.io/is-default-eip: "true"
spec:address: 192.168.85.91-192.168.85.100 # 地址池protocol: layer2 # 协议：BGP, Layer 2, or VIPinterface: eth0 # 网卡disable: false
4. 如何使用
1. 创建deployment
- 创建yaml文件
vi layer2-openelb.yaml
- 写入以下内容
apiVersion: apps/v1
kind: Deployment
metadata:name: layer2-openelb
spec:replicas: 2selector:matchLabels:app: layer2-openelbtemplate:metadata:labels:app: layer2-openelbspec:containers:- image: luksa/kubianame: kubiaports:- containerPort: 8080
- 应用yaml文件创建deployment
kubectl apply -f layer2-openelb.yaml
2. 创建service
- 创建yaml文件
vi layer2-svc.yaml
- 写入以下内容
kind: Service
apiVersion: v1
metadata:name: layer2-svcannotations: # 需要添加以下3个注解lb.kubesphere.io/v1alpha1: openelbprotocol.openelb.kubesphere.io/v1alpha1: layer2eip.openelb.kubesphere.io/v1alpha2: eip-pool # eip地址池名称
spec:selector:app: layer2-openelbtype: LoadBalancerports:- name: httpport: 80targetPort: 8080externalTrafficPolicy: Cluster
- 应用yaml文件创建service
kubectl apply -f layer2-svc.yaml
3. 验证
[root@k8s-master ~]# kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.233.0.1 <none> 443/TCP 34m
layer2-svc LoadBalancer 10.233.49.106 192.168.85.91 80:31929/TCP 4s[root@k8s-master ~]# curl 192.168.85.91
You've hit layer2-openelb-7b4fdf6f85-nvsws
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