kubesphere3独立安装

使用独立linux电脑安装 kubesphere 3.0.0体验产品

准备电脑

禁用防火墙或者配置开启如下端口

<table><thead><tr><th>Service</th><th>Protocol</th><th>Action</th><th>Start Port</th><th>End Port</th><th>Notes</th></tr></thead><tbody><tr><td>ssh</td><td>TCP</td><td>allow</td><td>22</td><td></td><td></td></tr><tr><td>etcd</td><td>TCP</td><td>allow</td><td>2379</td><td>2380</td><td></td></tr><tr><td>apiserver</td><td>TCP</td><td>allow</td><td>6443</td><td></td><td></td></tr><tr><td>calico</td><td>TCP</td><td>allow</td><td>9099</td><td>9100</td><td></td></tr><tr><td>bgp</td><td>TCP</td><td>allow</td><td>179</td><td></td><td></td></tr><tr><td>nodeport</td><td>TCP</td><td>allow</td><td>30000</td><td>32767</td><td></td></tr><tr><td>master</td><td>TCP</td><td>allow</td><td>10250</td><td>10258</td><td></td></tr><tr><td>dns</td><td>TCP</td><td>allow</td><td>53</td><td></td><td></td></tr><tr><td>dns</td><td>UDP</td><td>allow</td><td>53</td><td></td><td></td></tr><tr><td>local-registry</td><td>TCP</td><td>allow</td><td>5000</td><td></td><td>For offline environment</td></tr><tr><td>local-apt</td><td>TCP</td><td>allow</td><td>5080</td><td></td><td>For offline environment</td></tr><tr><td>rpcbind</td><td>TCP</td><td>allow</td><td>111</td><td></td><td>Required if NFS is used</td></tr><tr><td>ipip</td><td>IPENCAP / IPIP</td><td>allow</td><td></td><td></td><td>Calico needs to allow the ipip protocol</td></tr></tbody></table>

CentOS 7.x

# uname -a
Linux centosmini 3.10.0-1127.19.1.el7.x86_64 #

硬件要求

CPU: 2 Cores, Memory: 4 G, Disk Space: 40 G

安装容器
```
- 设置containerd.io源 
```
wget https://download.docker.com/linux/centos/7/x86_64/edge/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm
yum install containerd.io-1.2.6-3.3.el7.x86_64.rpm

安装docker

yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum -y install docker-ce

设置镜像

sudo mkdir -p /etc/docker 
# 设置镜像
cat <<EOF > /etc/docker/daemon.json
{
"exec-opts":["native.cgroupdriver=systemd"],   
"log-driver": "json-file",
    "log-opts": {
    "max-size": "100m"
 },
"storage-driver": "overlay2",
"storage-opts": [
    "overlay2.override_kernel_check=true"
], 
"registry-mirrors": ["https://u2nhke40.mirror.aliyuncs.com"]
}
EOF

启动容器

sudo systemctl daemon-reload 
#启动容器
sudo systemctl restart docker

socat 安装

一个多功能的网络工具，名字来源于SOcket CAT，是netcat的增强版，也就是netcat++（扩展了设计，并有新的实现）
```
yum install socat -y
```

conntrack 安装

```
yum install conntrack -y
```

安装KubeKey

下载安装文件

wget -c https://kubesphere.io/download/kubekey-v1.0.0-linux-amd64.tar.gz -O - | tar -xz

设置安装文件权限
```
chmod +x kk
```

安装最小kubesphere

执行命令

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

等待很久看结果

INFO[23:51:12 CST] Downloading kubecni ...                      
INFO[23:51:56 CST] Downloading helm ...                         
INFO[23:52:33 CST] Configurating operating system ...           
[kubesphere 192.168.31.151] MSG:
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-arptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_local_reserved_ports = 30000-32767
INFO[23:52:35 CST] Installing docker ...                        
INFO[23:53:22 CST] Start to download images on all nodes        
Downloading image: kubesphere/etcd:v3.3.12