我的服务器硬件信息说明
8核 16GB 5Mbps
公网IP：81.61.121.155
私有IP：172.16.0.5
安全组是开放所有端口
我的服务器软件信息说明
系统：CentOS 7.8
关闭 SELinux
setenforce 0 && sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
禁用防火墙
systemctl stop firewalld && systemctl disable firewalld && echo "vm.swappiness = 0" >> /etc/sysctl.conf && swapoff -a && sysctl -w vm.swappiness=0
安装一些简单工具：
yum install -y zip unzip lrzsz git epel-release wget htop deltarpm
服务器更换 CentOS YUM 源为阿里云
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
yum clean all && yum makecache
yum update -y
时间同步
timedatectl && timedatectl set-ntp true
设置 hostname，这个最好设置一下，并且设置全部小写字母和数字，一定要小写字母
hostnamectl set-hostname master
开始在所选安装机器上设置免密登录，我这里选择了 master1
ssh-keygen -t rsa -b 2048 -N '' -f ~/.ssh/id_rsa
这里都是内网地址
ssh-copy-id -i /root/.ssh/id_rsa.pub -p 22 root@172.16.0.5
测试下是否可以免登陆：
ssh -p 22 root@172.16.0.5
安装 Docker
- 虽然 kubekey 安装中间会自动帮我们安装 docker，但是安装后默认的源是 Docker 国外的会很慢
- 所以我们可以考虑自己安装 Docker 并且修改源。当前时间 2020-10 KubeSphere 3.0.0 用的是
Docker version 19.03.13, build 4484c46d9d
- 开始安装 Docker
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum install -y containerd.io docker-ce-19.03.13 docker-ce-cli-19.03.13
systemctl start docker
systemctl enable docker
修改镜像源配置
vim /etc/docker/daemon.json
{
"registry-mirrors": [
"https://ldhc17y9.mirror.aliyuncs.com",
"https://hub-mirror.c.163.com",
"https://mirror.baidubce.com",
"https://docker.mirrors.ustc.edu.cn"
]
}
systemctl daemon-reload
systemctl restart docker
安装 Kubernetes + KubeSphere
wget -c https://kubesphere.io/download/kubekey-v1.0.0-linux-amd64.tar.gz -O - | tar -xz
chmod +x kk
开始安装，终端会出现一个当前环境已有环境检查，比如 docker 已安装等
./kk create cluster --with-kubernetes v1.17.9 --with-kubesphere v3.0.0
如果安装过程出现错误中断了：Failed to init kubernetes cluster: interrupted by error
那就重新再执行下上面的脚本，重新来一次
当控制台出现这一行字，表示 kubesphere 开始进入守护进程方式安装后续部分了
INFO[12:51:25 CST] Installation is complete.
Please check the result using the command:
kubectl logs -n kubesphere-system $(kubectl get pod -n kubesphere-system -l app=ks-install -o jsonpath='{.items[0].metadata.name}') -f
这时候你可以看到你服务器已经下载了这些镜像：
[root@master1 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
kubesphere/ks-installer v3.0.0 893b46ffa208 6 weeks ago 692MB
kubesphere/kube-proxy v1.17.9 ddc09a4c2193 3 months ago 117MB
kubesphere/kube-controller-manager v1.17.9 c7f1dde319ee 3 months ago 161MB
kubesphere/kube-apiserver v1.17.9 7417868987f3 3 months ago 171MB
kubesphere/kube-scheduler v1.17.9 f7b1228fa995 3 months ago 94.4MB
calico/node v3.15.1 1470783b1474 3 months ago 262MB
calico/pod2daemon-flexvol v3.15.1 a696ebcb2ac7 3 months ago 112MB
calico/cni v3.15.1 2858353c1d25 3 months ago 217MB
calico/kube-controllers v3.15.1 8ed9dbffe350 3 months ago 53.1MB
kubesphere/provisioner-localpv 1.10.0 6b5529f464f7 5 months ago 68.4MB
kubesphere/node-disk-operator 0.5.0 8741fafb7b21 5 months ago 167MB
kubesphere/node-disk-manager 0.5.0 dbbed43bcbdb 5 months ago 168MB
kubesphere/k8s-dns-node-cache 1.15.12 5340ba194ec9 6 months ago 107MB
coredns/coredns 1.6.9 faac9e62c0d6 7 months ago 43.2MB
kubesphere/etcd v3.3.12 28c771d7cfbf 21 months ago 40.6MB
kubesphere/pause 3.1 da86e6ba6ca1 2 years ago 742kB
我们可以根据命令来查看守护进程安装进度：
kubectl logs -n kubesphere-system $(kubectl get pod -n kubesphere-system -l app=ks-install -o jsonpath='{.items[0].metadata.name}') -f
当我们看到这个就表示守护进程安装成功了
#####################################################
### Welcome to KubeSphere! ###
#####################################################
Console: http://172.16.0.5:30880
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 2020-10-30 17:18:00
#####################################################
这时候我们再来看看下载了哪些镜像：
[root@master1 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
kubesphere/ks-installer v3.0.0 893b46ffa208 6 weeks ago 692MB
kubesphere/ks-controller-manager v3.0.0 85bd13080839 2 months ago 82MB
kubesphere/ks-apiserver v3.0.0 d9fac59cfb8c 2 months ago 120MB
kubesphere/ks-console v3.0.0 d5987e1f99ac 2 months ago 95.5MB
prom/prometheus v2.20.1 b205ccdd28d3 2 months ago 145MB
kubesphere/notification-manager v0.1.0 331a0e6ece23 3 months ago 47.5MB
kubesphere/notification-manager-operator v0.1.0 c441b79e9606 3 months ago 44.4MB
kubesphere/kube-proxy v1.17.9 ddc09a4c2193 3 months ago 117MB
kubesphere/kube-apiserver v1.17.9 7417868987f3 3 months ago 171MB
kubesphere/kube-controller-manager v1.17.9 c7f1dde319ee 3 months ago 161MB
kubesphere/kube-scheduler v1.17.9 f7b1228fa995 3 months ago 94.4MB
calico/node v3.15.1 1470783b1474 3 months ago 262MB
calico/pod2daemon-flexvol v3.15.1 a696ebcb2ac7 3 months ago 112MB
calico/cni v3.15.1 2858353c1d25 3 months ago 217MB
calico/kube-controllers v3.15.1 8ed9dbffe350 3 months ago 53.1MB
kubesphere/prometheus-config-reloader v0.38.3 8011d6eb5bac 4 months ago 10.1MB
kubesphere/prometheus-operator v0.38.3 a703e647b26f 4 months ago 38.6MB
prom/alertmanager v0.21.0 c876f5897d7b 4 months ago 55.5MB
kubesphere/kube-state-metrics v1.9.6 092e8ed1e0b3 5 months ago 32.8MB
kubesphere/provisioner-localpv 1.10.0 6b5529f464f7 5 months ago 68.4MB
kubesphere/node-disk-operator 0.5.0 8741fafb7b21 5 months ago 167MB
kubesphere/node-disk-manager 0.5.0 dbbed43bcbdb 5 months ago 168MB
kubesphere/linux-utils 1.10.0 28c1cd0be1ea 5 months ago 11MB
osixia/openldap 1.3.0 faac9bb59f83 5 months ago 260MB
kubesphere/metrics-server v0.3.7 07c9e703ca2c 6 months ago 55.4MB
kubesphere/k8s-dns-node-cache 1.15.12 5340ba194ec9 6 months ago 107MB
coredns/coredns 1.6.9 faac9e62c0d6 7 months ago 43.2MB
csiplugin/snapshot-controller v2.0.1 525889021849 9 months ago 41.4MB
kubesphere/node-exporter ks-v0.18.1 cfb0175954de 11 months ago 23.7MB
kubesphere/kubectl v1.0.0 7f81664a09d0 12 months ago 82.1MB
redis 5.0.5-alpine ed7d2ff5a623 14 months ago 29.3MB
jimmidyson/configmap-reload v0.3.0 7ec24a279487 14 months ago 9.7MB
kubesphere/etcd v3.3.12 28c771d7cfbf 21 months ago 40.6MB
kubesphere/kube-rbac-proxy v0.4.1 70eeaa7791f2 21 months ago 41.3MB
kubesphere/pause 3.1 da86e6ba6ca1 2 years ago 742kB
mirrorgooglecontainers/defaultbackend-amd64 1.4 846921f0fe0e 3 years ago 4.84MB
等个 5 分钟再来看看有哪些 pod：
[root@master ~]# kubectl get pods -A
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system calico-kube-controllers-59d85c5c84-qbwqb 1/1 Running 0 12m
kube-system calico-node-zn84s 1/1 Running 0 12m
kube-system coredns-74d59cc5c6-plx4c 1/1 Running 0 12m
kube-system coredns-74d59cc5c6-zct54 1/1 Running 0 12m
kube-system kube-apiserver-master 1/1 Running 0 12m
kube-system kube-controller-manager-master 1/1 Running 0 12m
kube-system kube-proxy-9672d 1/1 Running 0 12m
kube-system kube-scheduler-master 1/1 Running 0 12m
kube-system metrics-server-5ddd98b7f9-dbc2n 1/1 Running 0 11m
kube-system nodelocaldns-6w4rr 1/1 Running 0 12m
kube-system openebs-localpv-provisioner-84956ddb89-jkdns 1/1 Running 0 12m
kube-system openebs-ndm-fcrlq 1/1 Running 0 12m
kube-system openebs-ndm-operator-6896cbf7b8-sz2pv 1/1 Running 1 12m
kube-system snapshot-controller-0 1/1 Running 0 9m46s
kubesphere-controls-system default-http-backend-5d464dd566-cns9c 1/1 Running 0 9m24s
kubesphere-controls-system kubectl-admin-6c9bd5b454-54xhj 1/1 Running 0 6m22s
kubesphere-monitoring-system alertmanager-main-0 2/2 Running 0 7m35s
kubesphere-monitoring-system kube-state-metrics-5c466fc7b6-z8w2c 3/3 Running 0 8m30s
kubesphere-monitoring-system node-exporter-jvgws 2/2 Running 0 8m31s
kubesphere-monitoring-system notification-manager-deployment-7ff95b7544-zzk6p 1/1 Running 0 4m12s
kubesphere-monitoring-system notification-manager-operator-5cbb58b756-pnpwr 2/2 Running 0 8m17s
kubesphere-monitoring-system prometheus-k8s-0 3/3 Running 1 7m25s
kubesphere-monitoring-system prometheus-operator-78c5cdbc8f-hjg7p 2/2 Running 0 8m31s
kubesphere-system ks-apiserver-566f7d5c96-rnk96 1/1 Running 0 7m57s
kubesphere-system ks-console-fb4c655cf-nkq5q 1/1 Running 0 9m12s
kubesphere-system ks-controller-manager-64459d95bb-p9jz7 1/1 Running 0 7m57s
kubesphere-system ks-installer-85854b8c8-cmppw 1/1 Running 0 12m
kubesphere-system openldap-0 1/1 Running 0 9m35s
kubesphere-system redis-6fd6c6d6f9-96rs2 1/1 Running 0 9m40s
