Kubernetes二进制搭建教程

一.准备

准备3台 2核4G 的CentOS7服务器

ip	角色
192.168.1.150	k8s-master
192.168.1.151	k8s-node1
192.168.1.152	k8s-node2

1.修改主机名

k8s-master:

hostnamectl set-hostname k8s-master

k8s-node1 和 k8s-node2

node1 : hostnamectl set-hostname k8s-node1
node2 : hostnamectl set-hostname k8s-node2

2.防火墙关闭

3台机器都要执行

systemctl stop firewalld
systemctl disable firewalld

3.关闭selinux

# 临时关闭
setenforce 0
#永久关闭
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config # 

4.关闭swap

# 临时关闭；关闭swap主要是为了性能考虑
swapoff -a 
#永久关闭
sed -ri 's/.*swap.*/#&/' /etc/fstab
# 可以通过这个命令查看swap是否关闭了 
free

5.时间同步

yum install ntpdate -y
ntpdate time.windows.com

6.将桥接的IPv4流量传递到iptables的链

cat > /etc/sysctl.d/k8s.conf << EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF

7.添加主机名与IP对应的关系

vim /etc/hosts
192.168.0.150 k8s-master
192.168.0.151 k8s-node-1
192.168.0.152 k8s-node-1

二. 搭建 etcd集群

1.准备 cfssl 证书生成工具 生成证书

master上操作

cfssl 是一个开源的证书管理工具，使用 json 文件生成证书，相比 openssl 更方便使用。

wget https://pkg.cfssl.org/R1.2/cfssl_linux-amd64
wget https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64
wget https://pkg.cfssl.org/R1.2/cfssl-certinfo_linux-amd64
chmod +x cfssl_linux-amd64 cfssljson_linux-amd64 cfssl-certinfo_linux-amd64
mv cfssl_linux-amd64 /usr/local/bin/cfssl
mv cfssljson_linux-amd64 /usr/local/bin/cfssljson
mv cfssl-certinfo_linux-amd64 /usr/bin/cfssl-certinfo
chmod +x /usr/bin/cfssl*

创建文件夹

mkdir -p ~/TLS/{etcd,k8s}
cd TLS/etcd

自签CA

cat > ca-config.json << EOF
{
  "signing": {
    "default": {
      "expiry": "87600h"
    },
    "profiles": {
      "www": {
         "expiry": "87600h",
         "usages": [
            "signing",
            "key encipherment",
            "server auth",
            "client auth"
        ]
      }
    }
  }
}
EOF

cat > ca-csr.json << EOF
{
    "CN": "etcd CA",
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "Beijing",
            "ST": "Beijing"
        }
    ]
}
EOF

生成证书

cfssl gencert -initca ca-csr.json | cfssljson -bare ca -
#查看生成的正式
ls *pem

使用自签 CA 签发 Etcd HTTPS 证书 创建证书申请文件：(修改对应的master和node的IP地址),hosts可以多写点

cat > server-csr.json << EOF
{
    "CN": "etcd",
    "hosts": [
    "192.168.0.150",
    "192.168.0.151",
    "192.168.0.152",
    "192.168.0.153",
    "192.168.0.154",
    "192.168.0.155",
    "192.168.0.156",
    "192.168.0.157",
    "192.168.0.158",
    "192.168.0.159",
    "192.168.0.160"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "BeiJing",
            "ST": "BeiJing"
        }
    ]
}
EOF

生成证书

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=www server-csr.json | cfssljson -bare server 
#查看生产的文件
ls server*pem

2 搭建etcd集群

1. github 下载安装包安装 https://github.com/etcd-io/etcd/releases

mkdir /opt/etcd/{bin,cfg,ssl} -p
tar zxvf etcd-v3.4.14-linux-amd64.tar.gz
mv etcd-v3.4.14-linux-amd64/{etcd,etcdctl} /opt/etcd/bin/

2. 创建etcd.conf （修改对应的master的ip地址）

   cat > /opt/etcd/cfg/etcd.conf << EOF
   #[Member]
   ETCD_NAME="etcd-1"
   ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
   ETCD_LISTEN_PEER_URLS="https://192.168.0.150:2380"
   ETCD_LISTEN_CLIENT_URLS="https://192.168.0.150:2379"
   #[Clustering]
   ETCD_INITIAL_ADVERTISE_PEER_URLS="https://192.168.0.150:2380"
   ETCD_ADVERTISE_CLIENT_URLS="https://192.168.0.150:2379"
   ETCD_INITIAL_CLUSTER="etcd-1=https://192.168.0.150:2380,etcd-2=https://192.168.0.151:2380,etcd-3=https://192.168.0.152:2380"
   ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
   ETCD_INITIAL_CLUSTER_STATE="new"
   EOF
   

   3. 创建etcd.service

      cat > /usr/lib/systemd/system/etcd.service << EOF
      [Unit]
      Description=Etcd Server
      After=network.target
      After=network-online.target
      Wants=network-online.target
      [Service]
      Type=notify
      EnvironmentFile=/opt/etcd/cfg/etcd.conf
      ExecStart=/opt/etcd/bin/etcd \
      --cert-file=/opt/etcd/ssl/server.pem \
      --key-file=/opt/etcd/ssl/server-key.pem \
      --peer-cert-file=/opt/etcd/ssl/server.pem \
      --peer-key-file=/opt/etcd/ssl/server-key.pem \
      --trusted-ca-file=/opt/etcd/ssl/ca.pem \
      --peer-trusted-ca-file=/opt/etcd/ssl/ca.pem \
      --logger=zap
      Restart=on-failure
      LimitNOFILE=65536
      [Install]
      WantedBy=multi-user.target
      EOF
      

      拷贝刚才生成的证书 把刚才生成的证书拷贝到配置文件中的路径：

      cp ~/TLS/etcd/ca*pem ~/TLS/etcd/server*pem /opt/etcd/ssl/
      

      将上面节点 1 所有生成的文件拷贝到节点 2 和节点 3

      scp -r /opt/etcd/ root@k8s-node1:/opt/
      scp /usr/lib/systemd/system/etcd.service root@k8s-node1:/usr/lib/systemd/system/
      
      scp -r /opt/etcd/ root@k8s-node2:/opt/
      scp /usr/lib/systemd/system/etcd.service root@k8s-node2:/usr/lib/systemd/system/
      
      

      拷贝到k8s-node1和k8s-node2后需要修改配置文件内的ip

      vi /opt/etcd/cfg/etcd.conf
      

再次检测3台机器上的==/opt/etcd/cfg/etcd.conf==文件内配置的ip是否正确后同时启动

systemctl daemon-reload
systemctl start etcd
systemctl enable etcd

查看集群状态(注意ip)

/opt/etcd/bin/etcdctl --cacert=/opt/etcd/ssl/ca.pem --cert=/opt/etcd/ssl/server.pem --key=/opt/etcd/ssl/server-key.pem --endpoints="https://192.168.0.150:2379,https://192.168.0.151:2379,https://192.168.0.152:2379" endpoint status --write-out=table

如图表示启动成功

三 安装Docker

3台机器都要安装

本次使用二进制方式安装docker(也可以直接用yum)

#下载
wget https://download.docker.com/linux/static/stable/x86_64/docker-20.10.3.tgz
#解压安装
tar zxvf docker-20.10.3.tgz 
mv docker/* /usr/bin

systemd 管理 docker

cat > /usr/lib/systemd/system/docker.service << EOF
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target firewalld.service
Wants=network-online.target
[Service]
Type=notify
ExecStart=/usr/bin/dockerd
ExecReload=/bin/kill -s HUP $MAINPID
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
TimeoutStartSec=0
Delegate=yes
KillMode=process
Restart=on-failure
StartLimitBurst=3
StartLimitInterval=60s
[Install]
WantedBy=multi-user.target
EOF

配置阿里云加速

mkdir /etc/docker
cat > /etc/docker/daemon.json << EOF
{
  "registry-mirrors": ["https://c4grtaig.mirror.aliyuncs.com"]
}
EOF

启动并设置开机启动

systemctl daemon-reload
systemctl start docker
systemctl enable docker
#查询docker是否成功安装
docker -v 

四. 部署 Master

k8s-master 上操作

1 . 生成 kube-apiserver 证书

cd TLS/k8s

cat > ca-config.json << EOF
{
  "signing": {
    "default": {
      "expiry": "87600h"
    },
    "profiles": {
      "kubernetes": {
         "expiry": "87600h",
         "usages": [
            "signing",
            "key encipherment",
            "server auth",
            "client auth"
        ]
      }
    }
  }
}
EOF

cat > ca-csr.json << EOF
{
    "CN": "kubernetes",
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "Beijing",
            "ST": "Beijing",
            "O": "k8s",
            "OU": "System"
        }
    ]
}
EOF

生产证书

cfssl gencert -initca ca-csr.json | cfssljson -bare ca -
ls *pem

使用自签 CA 签发 kube-apiserver HTTPS 证书 创建证书申请文件(注意修改ip)

cat > server-csr.json << EOF
{
    "CN": "kubernetes",
    "hosts": [
      "10.0.0.1",
      "127.0.0.1",
      "192.168.0.150",
      "192.168.0.151",
      "192.168.0.152",
      "192.168.0.153",
      "192.168.0.154",
      "192.168.0.155",
      "192.168.0.156",
      "192.168.0.157",
      "192.168.0.158",
      "192.168.0.159",
      "192.168.0.160",
      "kubernetes",
      "kubernetes.default",
      "kubernetes.default.svc",
      "kubernetes.default.svc.cluster",
      "kubernetes.default.svc.cluster.local"
    ],
    "key": {
        "algo": "rsa",
        "size": 2048
    },
    "names": [
        {
            "C": "CN",
            "L": "BeiJing",
            "ST": "BeiJing",
            "O": "k8s",
            "OU": "System"
        }
    ]
}
EOF

生成证书

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes server-csr.json | cfssljson -bare server
#查看文件
ls server*pem

2. 下载 kubernetes-server

#github地址: 
https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG
#18版本下载地址
https://dl.k8s.io/v1.18.20/kubernetes-server-linux-amd64.tar.gz

解压二进制包

mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs}
tar zxvf kubernetes-server-linux-amd64.tar.gz
cd kubernetes/server/bin
cp kube-apiserver kube-scheduler kube-controller-manager /opt/kubernetes/bin
cp kubectl /usr/bin/

3. 部署 kube-apiserver

注意修改ip

cat > /opt/kubernetes/cfg/kube-apiserver.conf << EOF
KUBE_APISERVER_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--etcd-servers=https://192.168.0.150:2379,https://192.168.0.151:2379,https://192.168.0.152:2379 \\
--bind-address=192.168.0.150 \\
--secure-port=6443 \\
--advertise-address=192.168.0.150 \\
--allow-privileged=true \\
--service-cluster-ip-range=10.0.0.0/24 \\
--enable-admission-plugins=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota,NodeRestriction \\
--authorization-mode=RBAC,Node \\
--enable-bootstrap-token-auth=true \\
--token-auth-file=/opt/kubernetes/cfg/token.csv \\
--service-node-port-range=30000-32767 \\
--kubelet-client-certificate=/opt/kubernetes/ssl/server.pem \\
--kubelet-client-key=/opt/kubernetes/ssl/server-key.pem \\
--tls-cert-file=/opt/kubernetes/ssl/server.pem  \\
--tls-private-key-file=/opt/kubernetes/ssl/server-key.pem \\
--client-ca-file=/opt/kubernetes/ssl/ca.pem \\
--service-account-key-file=/opt/kubernetes/ssl/ca-key.pem \\
--etcd-cafile=/opt/etcd/ssl/ca.pem \\
--etcd-certfile=/opt/etcd/ssl/server.pem \\
--etcd-keyfile=/opt/etcd/ssl/server-key.pem \\
--audit-log-maxage=30 \\
--audit-log-maxbackup=3 \\
--audit-log-maxsize=100 \\
--audit-log-path=/opt/kubernetes/logs/k8s-audit.log"
EOF

将第一步生成的证书拷贝到配置文件中的路径：

cp ~/TLS/k8s/ca*pem ~/TLS/k8s/server*pem /opt/kubernetes/ssl/

创建上述配置文件中 token 文件

cat > /opt/kubernetes/cfg/token.csv << EOF
c47ffb939f5ca36231d9e3121a252940,kubelet-bootstrap,10001,"system:node-bootstrapper"
EOF

c47ff那一串就是密钥可以自己生产

head -c 16 /dev/urandom | od -An -t x | tr -d ' '

4. systemd 管理 apiserver

cat > /usr/lib/systemd/system/kube-apiserver.service << EOF
[Unit]
Description=Kubernetes API Server
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-apiserver.conf
ExecStart=/opt/kubernetes/bin/kube-apiserver \$KUBE_APISERVER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

启动

systemctl daemon-reload
systemctl start kube-apiserver
systemctl enable kube-apiserver
systemctl status kube-apiserver 

5.授权 kubelet-bootstrap 用户允许请求证书

kubectl create clusterrolebinding kubelet-bootstrap \
--clusterrole=system:node-bootstrapper \
--user=kubelet-bootstrap

6. 部署 kube-controller-manager

cat > /opt/kubernetes/cfg/kube-controller-manager.conf << EOF
KUBE_CONTROLLER_MANAGER_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--leader-elect=true \\
--master=127.0.0.1:8080 \\
--bind-address=127.0.0.1 \\
--allocate-node-cidrs=true \\
--cluster-cidr=10.244.0.0/16 \\
--service-cluster-ip-range=10.0.0.0/24 \\
--cluster-signing-cert-file=/opt/kubernetes/ssl/ca.pem \\
--cluster-signing-key-file=/opt/kubernetes/ssl/ca-key.pem  \\
--root-ca-file=/opt/kubernetes/ssl/ca.pem \\
--service-account-private-key-file=/opt/kubernetes/ssl/ca-key.pem \\
--experimental-cluster-signing-duration=87600h0m0s"
EOF

7.systemd 管理 controller-manager

cat > /usr/lib/systemd/system/kube-controller-manager.service << EOF
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-controller-manager.conf
ExecStart=/opt/kubernetes/bin/kube-controller-manager \$KUBE_CONTROLLER_MANAGER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

启动并设置开机启动

systemctl daemon-reload
systemctl start kube-controller-manager
systemctl enable kube-controller-manager
systemctl status kube-controller-manager

8. 部署 kube-scheduler

cat > /opt/kubernetes/cfg/kube-scheduler.conf << EOF
KUBE_SCHEDULER_OPTS="--logtostderr=false \
--v=2 \
--log-dir=/opt/kubernetes/logs \
--leader-elect \
--master=127.0.0.1:8080 \
--bind-address=127.0.0.1"
EOF

cat > /usr/lib/systemd/system/kube-scheduler.service << EOF
[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/kubernetes/kubernetes
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-scheduler.conf
ExecStart=/opt/kubernetes/bin/kube-scheduler \$KUBE_SCHEDULER_OPTS
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

启动并设置开机启动

systemctl daemon-reload
systemctl start kube-scheduler
systemctl enable kube-scheduler
systemctl status kube-scheduler

9 查看集群状态

kubectl get cs

五. 部署node节点

部署 kubelet

node节点操作

mkdir -p /opt/kubernetes/{bin,cfg,ssl,logs}
tar zxvf kubernetes-server-linux-amd64.tar.gz
cd kubernetes/server/bin

cp kubelet kube-proxy /opt/kubernetes/bin

cp kubectl /usr/bin/

注意 hostname-override要改(全局唯一)

cat > /opt/kubernetes/cfg/kubelet.conf << EOF
KUBELET_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--hostname-override=k8s-node1 \\
--network-plugin=cni \\
--kubeconfig=/opt/kubernetes/cfg/kubelet.kubeconfig \\
--bootstrap-kubeconfig=/opt/kubernetes/cfg/bootstrap.kubeconfig \\
--config=/opt/kubernetes/cfg/kubelet-config.yml \\
--cert-dir=/opt/kubernetes/ssl \\
--pod-infra-container-image=lizhenliang/pause-amd64:3.0"
EOF

cat > /opt/kubernetes/cfg/kubelet-config.yml << EOF
kind: KubeletConfiguration
apiVersion: kubelet.config.k8s.io/v1beta1
address: 0.0.0.0
port: 10250
readOnlyPort: 10255
cgroupDriver: cgroupfs
clusterDNS:
- 10.0.0.2
clusterDomain: cluster.local 
failSwapOn: false
authentication:
  anonymous:
    enabled: false
  webhook:
    cacheTTL: 2m0s
    enabled: true
  x509:
    clientCAFile: /opt/kubernetes/ssl/ca.pem 
authorization:
  mode: Webhook
  webhook:
    cacheAuthorizedTTL: 5m0s
    cacheUnauthorizedTTL: 30s
evictionHard:
  imagefs.available: 15%
  memory.available: 100Mi
  nodefs.available: 10%
  nodefs.inodesFree: 5%
maxOpenFiles: 1000000
maxPods: 110
EOF

将master一些配置文件拷贝到node节点上

#在master上执行
scp -r /opt/kubernetes/ssl root@k8s-node1:/opt/kubernetes

生成 kubelet bootstrap kubeconfig 配置文件

注意修改ip(master的ip)和token(之前部署master时的token)

kubectl config set-cluster kubernetes \
  --certificate-authority=/opt/kubernetes/ssl/ca.pem \
  --embed-certs=true \
  --server="https://192.168.0.150:6443" \
  --kubeconfig=bootstrap.kubeconfig
kubectl config set-credentials "kubelet-bootstrap" \
  --token="c47ffb939f5ca36231d9e3121a252940" \
  --kubeconfig=bootstrap.kubeconfig
kubectl config set-context default \
  --cluster=kubernetes \
  --user="kubelet-bootstrap" \
  --kubeconfig=bootstrap.kubeconfig
kubectl config use-context default --kubeconfig=bootstrap.kubeconfig

mv bootstrap.kubeconfig /opt/kubernetes/cfg

systemd管理kubelet

cat > /usr/lib/systemd/system/kubelet.service << EOF
[Unit]
Description=Kubernetes Kubelet
After=docker.service
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kubelet.conf
ExecStart=/opt/kubernetes/bin/kubelet \$KUBELET_OPTS
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
EOF

启动并设置开机启动

systemctl daemon-reload
systemctl start kubelet
systemctl enable kubelet

批准kubelet证书申请并加入集群(Master操作)

# 查看kubelet证书请求
kubectl get csr
NAME                                                   AGE    SIGNERNAME                                    REQUESTOR           CONDITION
node-csr-uCEGPOIiDdlLODKts8J658HrFq9CZ--K6M4G7bjhk8A   6m3s   kubernetes.io/kube-apiserver-client-kubelet   kubelet-bootstrap   Pending

# 批准申请
kubectl certificate approve node-csr-uCEGPOIiDdlLODKts8J658HrFq9CZ--K6M4G7bjhk8A

# 查看节点
kubectl get node

部署kube-proxy

cat > /opt/kubernetes/cfg/kube-proxy.conf << EOF
KUBE_PROXY_OPTS="--logtostderr=false \\
--v=2 \\
--log-dir=/opt/kubernetes/logs \\
--config=/opt/kubernetes/cfg/kube-proxy-config.yml"
EOF

cat > /opt/kubernetes/cfg/kube-proxy-config.yml << EOF
kind: KubeProxyConfiguration
apiVersion: kubeproxy.config.k8s.io/v1alpha1
bindAddress: 0.0.0.0
metricsBindAddress: 0.0.0.0:10249
clientConnection:
  kubeconfig: /opt/kubernetes/cfg/kube-proxy.kubeconfig
hostnameOverride: m1
clusterCIDR: 10.0.0.0/24
EOF

生成kube-proxy.kubeconfig文件(master生成在传到node)

# 切换工作目录
cd ~/TLS/k8s

# 创建证书请求文件
cat > kube-proxy-csr.json << EOF
{
  "CN": "system:kube-proxy",
  "hosts": [],
  "key": {
    "algo": "rsa",
    "size": 2048
  },
  "names": [
    {
      "C": "CN",
      "L": "BeiJing",
      "ST": "BeiJing",
      "O": "k8s",
      "OU": "System"
    }
  ]
}
EOF

# 生成证书
cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes kube-proxy-csr.json | cfssljson -bare kube-proxy
#拷贝到node节点
scp -r /root/TLS/k8s root@k8s-node1:/opt/TLS/

node 节点:

生成kubeconfig文件 注意修改ip为master的ip

cd /opt/TLS/

kubectl config set-cluster kubernetes \
  --certificate-authority=/opt/kubernetes/ssl/ca.pem \
  --embed-certs=true \
  --server="https://192.168.0.150:6443" \
  --kubeconfig=kube-proxy.kubeconfig

kubectl config set-credentials kube-proxy \
  --client-certificate=./kube-proxy.pem \
  --client-key=./kube-proxy-key.pem \
  --embed-certs=true \
  --kubeconfig=kube-proxy.kubeconfig

kubectl config set-context default \
  --cluster=kubernetes \
  --user=kube-proxy \
  --kubeconfig=kube-proxy.kubeconfig
  
kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig


cp kube-proxy.kubeconfig /opt/kubernetes/cfg/

systemd管理kube-proxy

cat > /usr/lib/systemd/system/kube-proxy.service << EOF
[Unit]
Description=Kubernetes Proxy
After=network.target
[Service]
EnvironmentFile=/opt/kubernetes/cfg/kube-proxy.conf
ExecStart=/opt/kubernetes/bin/kube-proxy \$KUBE_PROXY_OPTS
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
EOF

启动并设置开机启动

systemctl daemon-reload
systemctl start kube-proxy
systemctl status kube-proxy

部署 CNI

node节点操作

下载地址：https://github.com/containernetworking/plugins/releases/download/v0.8.6/cni-plugins-linux-amd64-v0.8.6.tgz

mkdir -p /opt/cni/bin
tar zxvf cni-plugins-linux-amd64-v0.8.6.tgz -C /opt/cni/bin

master节点操作

下载 kube-flannel.yml

链接：https://pan.baidu.com/s/1abu6OwzAgcRdpbEpPPpDnw
提取码：hvf3

kubectl apply -f kube-flannel.yml
#执行后要稍微等待一会就会变成ready

六 验证集群

1 先开口node是否是ready状态

kubectl get nodes 

2 启动nginx看能否访问

kubectl create deployment nginx --image=nginx

kubectl expose deployment nginx --port=80 --type=NodePort

kubectl get pod,svc

命令执行完后要等几分钟

通过浏览器访问 http://192.168.0.151:80 如果能成功访问则代表启动搭建成功

本教程用到的所有文件都放在百度网盘上了,需要的可以去下载