K8s集群環境搭建

2022 年 11 月 17 日
筆記
Kubernetes

K8s集群環境搭建

1、環境規劃

1.1 集群類型

Kubernetes集群大體上分為兩類：一主多從和多主多從

一主多從：一台master節點和多台node節點，搭建簡單，但是有單機故障風險，適用於測試環境

多主多從：多台master節點和多台node節點，搭建麻煩，安全性高，適用於生產環境

1.2 安裝方式

Kubernetes有多種部署方式，目前主流的方式有kubeadm、minikube、二進位包

Minikube：一個用於快速搭建單節點kubernetes的工具

Kubeadm：一個用於快速搭建kubernetes集群的工具，//kubernetes.io/docs/reference/setup-tools/kubeadm/kubeadm/

二進位包：從官網下載每個組件的二進位包，依次去安裝，此方式對於理解kubernetes組件更加有效，//github.com/kubernetes/kubernetes

說明：現在需要安裝kubernetes的集群環境，但是又不想過於麻煩，所有選擇使用kubeadm方式

1.3 準備環境

角色	ip地址	組件
master	192.168.111.100	docker，kubectl，kubeadm，kubelet
node1	192.168.111.101	docker，kubectl，kubeadm，kubelet
node2	192.168.111.102	docker，kubectl，kubeadm，kubelet

2、環境搭建

說明：

本次環境搭建需要安裝三台Linux系統（一主二從），內置centos7.5系統，然後在每台linux中分別安裝docker。kubeadm（1.25），kubelet（1.25.4），kubelet（1.25.4）.

2.1 主機安裝

安裝虛擬機過程中注意下面選項的設置：

作業系統環境：cpu2個記憶體2G 硬碟50G centos7+

語言：中文簡體/英文

軟體選擇：基礎設施伺服器

分區選擇：自動分區/手動分區

網路配置：按照下面配置網路地址資訊

網路地址：192.168.100.（100、10、20）

子網掩碼：255.255.255.0

默認網關：192.168.100.254

DNS：8.8.8.8

主機名設置：

Master節點：master

Node節點：node1

Node節點：node2

2.2 環境初始化

查看作業系統的版本

# 此方式下安裝kubernetes集群要求Centos版本要在7.5或之上
[root@master ~]#cat /etc/redhat-release
CentOS Stream release 8

主機名解析（三個節點都做）

# 為了方便集群節點間的直接調用，在這個配置一下主機名解析，企業中推薦使用內部DNS伺服器
[root@master ~]#cat >> /etc/hosts << EOF
> 192.168.111.100 master.example.com master
> 192.168.111.101 node1.example.com node1
> 192.168.111.102 node2.example.com node2
> EOF

[root@master ~]#scp /etc/hosts [email protected]:/etc/hosts
The authenticity of host '192.168.111.101 (192.168.111.101)' can't be established.
ECDSA key fingerprint is SHA256:0UQKIYmXwgllRaiKyKIR8RaO8bzS7GGb5180xGHoiMI.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '192.168.111.101' (ECDSA) to the list of known hosts.
[email protected]'s password: 
hosts                                                                                       100%  280   196.1KB/s   00:00    
[root@master ~]#scp /etc/hosts [email protected]:/etc/hosts
The authenticity of host '192.168.111.102 (192.168.111.102)' can't be established.
ECDSA key fingerprint is SHA256:0UQKIYmXwgllRaiKyKIR8RaO8bzS7GGb5180xGHoiMI.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '192.168.111.102' (ECDSA) to the list of known hosts.
[email protected]'s password: 
hosts

時鐘同步

# kubernetes要求集群中的節點時間必須精確一致，這裡使用chronyd服務從網路同步時間，企業中建議配置內部的時間同步伺服器
-master節點
[root@master ~]#vim /etc/chrony.conf
local stratum 10
[root@master ~]#systemctl restart chronyd.service
[root@master ~]#systemctl enable chronyd.service
[root@master ~]#hwclock -w

-node1節點
[root@node1 ~]#vim /etc/chrony.conf
server master.example.com iburst
...
[root@node1 ~]#systemctl restart chronyd.service 
[root@node1 ~]#systemctl enable chronyd.service 
[root@node1 ~]#hwclock -w

-node2節點
[root@node2 ~]#vim /etc/chrony.conf 
server master.example.com iburst
...
[root@node2 ~]#systemctl restart chronyd.service 
[root@node2 ~]#systemctl enable chronyd.service
[root@node2 ~]#hwclock -w

禁用firewalld、selinux、postfix（三個節點都做）

# 關閉防火牆、selinux，postfix----3台主機都配置
-master節點
[root@master ~]#systemctl disable --now firewalld
[root@master ~]#sed -i 's/enforcing/disabled/' /etc/selinux/config
[root@master ~]#setenforce 0
[root@master ~]#systemctl stop postfix
[root@master ~]#systemctl disable postfix

-node1節點
[root@node1 ~]#systemctl disable --now firewalld
[root@node1 ~]#sed -i 's/enforcing/disabled/' /etc/selinux/config
[root@node1 ~]#setenforce 0
[root@node1 ~]#systemctl stop postfix
[root@node1 ~]#systemctl disable postfix

-node2節點
[root@node2 ~]#systemctl disable --now firewalld
[root@node2 ~]#sed -i 's/enforcing/disabled/' /etc/selinux/config
[root@node2 ~]#setenforce 0
[root@node2 ~]#systemctl stop postfix
[root@node2 ~]#systemctl disable postfix

禁用swap分區（三個節點都做）

-master節點
[root@master ~]#vim /etc/fstab # 注釋掉swap分區那一行
[root@master ~]#swapoff -a

-node1節點
[root@node1 ~]#vim /etc/fstab # 注釋掉swap分區那一行
[root@node1 ~]#swapoff -a

-node1節點
[root@node2 ~]#vim /etc/fstab # 注釋掉swap分區那一行
[root@node2 ~]#swapoff -a

開啟IP轉發，和修改內核資訊—三個節點都需要配置

-master節點
[root@master ~]#vim /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
[root@master ~]#modprobe   br_netfilter
[root@master ~]#sysctl -p  /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1

-node1節點
[root@node1 ~]#vim /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
[root@node1 ~]#modprobe   br_netfilter
[root@node1 ~]#sysctl -p  /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1

-node1節點
[root@node2 ~]#vim /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
[root@node2 ~]#modprobe   br_netfilter
[root@node2 ~]#sysctl -p  /etc/sysctl.d/k8s.conf
net.ipv4.ip_forward = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1

配置IPVS功能（三個節點都做）

-master節點
[root@master ~]#vim /etc/sysconfig/modules/ipvs.modules
#!/bin/bash
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh

[root@master ~]#chmod +x /etc/sysconfig/modules/ipvs.modules
[root@master ~]#bash /etc/sysconfig/modules/ipvs.modules
[root@master ~]#lsmod | grep -e ip_vs
ip_vs_sh               16384  0
ip_vs_wrr              16384  0
ip_vs_rr               16384  0
ip_vs                 172032  6 ip_vs_rr,ip_vs_sh,ip_vs_wrr
nf_conntrack          172032  1 ip_vs
nf_defrag_ipv6         20480  2 nf_conntrack,ip_vs
libcrc32c              16384  3 nf_conntrack,xfs,ip_vs
[root@master ~]#reboot

-node1節點
[root@node1 ~]#vim /etc/sysconfig/modules/ipvs.modules
#!/bin/bash
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh

[root@node1 ~]#chmod +x /etc/sysconfig/modules/ipvs.modules
[root@node1 ~]#bash /etc/sysconfig/modules/ipvs.modules
[root@node1 ~]#lsmod | grep -e ip_vs
ip_vs_sh               16384  0
ip_vs_wrr              16384  0
ip_vs_rr               16384  0
ip_vs                 172032  6 ip_vs_rr,ip_vs_sh,ip_vs_wrr
nf_conntrack          172032  1 ip_vs
nf_defrag_ipv6         20480  2 nf_conntrack,ip_vs
libcrc32c              16384  3 nf_conntrack,xfs,ip_vs
[root@node1 ~]#reboot

-node2節點
[root@node2 ~]#vim /etc/sysconfig/modules/ipvs.modules
#!/bin/bash
modprobe -- ip_vs
modprobe -- ip_vs_rr
modprobe -- ip_vs_wrr
modprobe -- ip_vs_sh

[root@node2 ~]#chmod +x /etc/sysconfig/modules/ipvs.modules
[root@node2 ~]#bash /etc/sysconfig/modules/ipvs.modules
[root@node2 ~]#lsmod | grep -e ip_vs
ip_vs_sh               16384  0
ip_vs_wrr              16384  0
ip_vs_rr               16384  0
ip_vs                 172032  6 ip_vs_rr,ip_vs_sh,ip_vs_wrr
nf_conntrack          172032  1 ip_vs
nf_defrag_ipv6         20480  2 nf_conntrack,ip_vs
libcrc32c              16384  3 nf_conntrack,xfs,ip_vs
[root@node2 ~]#reboot

ssh免密認證

[root@master ~]#ssh-keygen 
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:VcZ6m+gceBJxwysFWwM08526KiBoSt9qdbDQoMSx3kU root@master
The key's randomart image is:
+---[RSA 3072]----+
|...  E .*+o.o    |
| o...   .*==..   |
|... o.  .+o+o    |
|.....o  o.o..    |
| o .. o S+.o o   |
|.o. .o .o +.o    |
|+ ..o..  =..     |
|.  o ..  .o      |
|  ...  ..        |
+----[SHA256]-----+
[root@master ~]#ssh-copy-id -i ~/.ssh/id_rsa.pub root@node1
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host 'node1 (192.168.111.101)' can't be established.
ECDSA key fingerprint is SHA256:0UQKIYmXwgllRaiKyKIR8RaO8bzS7GGb5180xGHoiMI.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@node1's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@node1'"
and check to make sure that only the key(s) you wanted were added.

[root@master ~]#ssh-copy-id -i ~/.ssh/id_rsa.pub root@node2
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host 'node2 (192.168.111.102)' can't be established.
ECDSA key fingerprint is SHA256:0UQKIYmXwgllRaiKyKIR8RaO8bzS7GGb5180xGHoiMI.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@node2's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@node2'"
and check to make sure that only the key(s) you wanted were added.

2.3、安裝docker

切換鏡像源

-master節點
[root@master /etc/yum.repos.d]#curl -o /etc/yum.repos.d/CentOS-Base.repo //mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
[root@master /etc/yum.repos.d]# dnf -y install epel-release
[root@master /etc/yum.repos.d]#wget //mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

-node1節點
[root@node1 /etc/yum.repos.d]#curl -o /etc/yum.repos.d/CentOS-Base.repo //mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
[root@node1 /etc/yum.repos.d]# dnf -y install epel-release
[root@node1 /etc/yum.repos.d]#wget //mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

-node2節點
[root@node2 /etc/yum.repos.d]#curl -o /etc/yum.repos.d/CentOS-Base.repo //mirrors.aliyun.com/repo/Centos-vault-8.5.2111.repo
[root@node2 /etc/yum.repos.d]# dnf -y install epel-release
[root@node2 /etc/yum.repos.d]#wget //mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

安裝docker-ce

-master節點
[root@master ~]# dnf -y install docker-ce --allowerasing
[root@master ~]# systemctl restart docker
[root@master ~]# systemctl enable docker

-node1節點
[root@node1 ~]# dnf -y install docker-ce --allowerasing
[root@node1 ~]# systemctl restart docker
[root@node1 ~]# systemctl enable docker

-node2節點
[root@node2 ~]# dnf -y install docker-ce --allowerasing
[root@node2 ~]# systemctl restart docker
[root@node2 ~]# systemctl enable docker

添加一個配置文件，配置docker倉庫加速器

-master節點
[root@master ~]#cat > /etc/docker/daemon.json << EOF
 {
   "registry-mirrors": ["//6vrrj6n2.mirror.aliyuncs.com"],
   "exec-opts": ["native.cgroupdriver=systemd"],
   "log-driver": "json-file",
   "log-opts": {
     "max-size": "100m"
   },
   "storage-driver": "overlay2"
 }
 EOF
[root@master ~]#systemctl daemon-reload
[root@master ~]#systemctl  restart docker

-node1節點
[root@node1 ~]#cat > /etc/docker/daemon.json << EOF
 {
   "registry-mirrors": ["//6vrrj6n2.mirror.aliyuncs.com"],
   "exec-opts": ["native.cgroupdriver=systemd"],
   "log-driver": "json-file",
   "log-opts": {
     "max-size": "100m"
   },
   "storage-driver": "overlay2"
 }
 EOF
[root@node1 ~]#systemctl daemon-reload
[root@node1 ~]#systemctl  restart docker

-node2節點
[root@node2 ~]#cat > /etc/docker/daemon.json << EOF
 {
   "registry-mirrors": ["//6vrrj6n2.mirror.aliyuncs.com"],
   "exec-opts": ["native.cgroupdriver=systemd"],
   "log-driver": "json-file",
   "log-opts": {
     "max-size": "100m"
   },
   "storage-driver": "overlay2"
 }
 EOF
[root@node2 ~]#systemctl daemon-reload
[root@node2 ~]#systemctl  restart docker

2.4 安裝kubernetes組件

由於kubernetes的鏡像在國外，速度比較慢，這裡切換成中國的鏡像源

-master節點
[root@master ~]#cat > /etc/yum.repos.d/kubernetes.repo << EOF
[kubernetes]
name=Kubernetes
baseurl=//mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=//mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg //mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

-node1節點
[root@node1 ~]#cat > /etc/yum.repos.d/kubernetes.repo << EOF
[kubernetes]
name=Kubernetes
baseurl=//mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=//mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg //mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

-node2節點
[root@node2 ~]#cat > /etc/yum.repos.d/kubernetes.repo << EOF
[kubernetes]
name=Kubernetes
baseurl=//mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=//mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg //mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF

安裝kubeadm kubelet kubectl工具

-master節點
[root@master ~]#dnf  -y  install kubeadm  kubelet  kubectl
[root@master ~]#systemctl  restart  kubelet
[root@master ~]#systemctl  enable  kubelet

-node1節點
[root@node1 ~]#dnf  -y  install kubeadm  kubelet  kubectl
[root@node1 ~]#systemctl  restart  kubelet
[root@node1 ~]#systemctl  enable  kubelet

-node2節點
[root@node2 ~]#dnf  -y  install kubeadm  kubelet  kubectl
[root@node2 ~]#systemctl  restart  kubelet
[root@node2 ~]#systemctl  enable  kubelet

配置containerd

# 為確保後面集群初始化及加入集群能夠成功執行，需要配置containerd的配置文件/etc/containerd/config.toml，此操作需要在所有節點執行
-master節點
[root@master ~]#containerd config default > /etc/containerd/config.toml
# 將/etc/containerd/config.toml文件中的k8s鏡像倉庫改為registry.aliyuncs.com/google_containers
[root@master ~]#vim /etc/containerd/config.toml
sandbox_image = "registry.aliyuncs.com/google_containers/pause:3.6"
# 然後重啟並設置containerd服務
[root@master ~]#systemctl   restart  containerd
[root@master ~]#systemctl   enable  containerd

# 為確保後面集群初始化及加入集群能夠成功執行，需要配置containerd的配置文件/etc/containerd/config.toml，此操作需要在所有節點執行
-node1節點
[root@node1 ~]#containerd config default > /etc/containerd/config.toml
# 將/etc/containerd/config.toml文件中的k8s鏡像倉庫改為registry.aliyuncs.com/google_containers
[root@node1 ~]#vim /etc/containerd/config.toml
sandbox_image = "registry.aliyuncs.com/google_containers/pause:3.6"
# 然後重啟並設置containerd服務
[root@node1 ~]#systemctl   restart  containerd
[root@node1 ~]#systemctl   enable  containerd

# 為確保後面集群初始化及加入集群能夠成功執行，需要配置containerd的配置文件/etc/containerd/config.toml，此操作需要在所有節點執行
-node2節點
[root@node2 ~]#containerd config default > /etc/containerd/config.toml
# 將/etc/containerd/config.toml文件中的k8s鏡像倉庫改為registry.aliyuncs.com/google_containers
[root@node2 ~]#vim /etc/containerd/config.toml
sandbox_image = "registry.aliyuncs.com/google_containers/pause:3.6"
# 然後重啟並設置containerd服務
[root@node2 ~]#systemctl   restart  containerd
[root@node2 ~]#systemctl   enable  containerd

部署k8s的master節點

-master節點
[root@master ~]#kubeadm init \
  --apiserver-advertise-address=192.168.111.100 \
  --image-repository registry.aliyuncs.com/google_containers \
  --kubernetes-version v1.25.4 \
  --service-cidr=10.96.0.0/12 \
  --pod-network-cidr=10.244.0.0/16
# 建議將初始化內容保存在某個文件中
[root@master ~]#vim k8s 
To start using your cluster, you need to run the following as a regular user:

  mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config

Alternatively, if you are the root user, you can run:

  export KUBECONFIG=/etc/kubernetes/admin.conf

You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
  //kubernetes.io/docs/concepts/cluster-administration/addons/

Then you can join any number of worker nodes by running the following on each as root:

kubeadm join 192.168.111.100:6443 --token eav8jn.zj2muv0thd7e8dad \
	--discovery-token-ca-cert-hash sha256:b38f8a6a6302e25c0bcba2a67c13b234fd0b9fdd8b0c0645154c79edf6555e09 

[root@master ~]#vim /etc/profile.d/k8s.sh
export KUBECONFIG=/etc/kubernetes/admin.conf
[root@master ~]#source /etc/profile.d/k8s.sh

安裝pod網路插件

-master節點
[root@master ~]#wget //raw.githubusercontent.com/flannel-io/flannel/master/Documentation/kube-flannel.yml
[root@master ~]#kubectl apply -f kube-flannel.yml 
namespace/kube-flannel created
clusterrole.rbac.authorization.k8s.io/flannel created
clusterrolebinding.rbac.authorization.k8s.io/flannel created
serviceaccount/flannel created
configmap/kube-flannel-cfg created
daemonset.apps/kube-flannel-ds created
[root@master ~]#kubectl get nodes
NAME     STATUS     ROLES           AGE     VERSION
master   NotReady   control-plane   6m41s   v1.25.4
[root@master ~]#kubectl get nodes
NAME     STATUS   ROLES           AGE     VERSION
master   Ready    control-plane   7m10s   v1.25.4

將node節點加入到k8s集群中

-node1節點
[root@node1 ~]#kubeadm join 192.168.111.100:6443 --token eav8jn.zj2muv0thd7e8dad \
> --discovery-token-ca-cert-hash sha256:b38f8a6a6302e25c0bcba2a67c13b234fd0b9fdd8b0c0645154c79edf6555e09 

-node2節點
[root@node2 ~]#kubeadm join 192.168.111.100:6443 --token eav8jn.zj2muv0thd7e8dad \
> --discovery-token-ca-cert-hash sha256:b38f8a6a6302e25c0bcba2a67c13b234fd0b9fdd8b0c0645154c79edf6555e09

kubectl get nodes 查看node狀態

-master節點
[root@master ~]#kubectl get nodes
NAME     STATUS     ROLES           AGE     VERSION
master   Ready      control-plane   9m37s   v1.25.4
node1    NotReady   <none>          51s     v1.25.4
node2    NotReady   <none>          31s     v1.25.4
[root@master ~]#kubectl get nodes
NAME     STATUS   ROLES           AGE     VERSION
master   Ready    control-plane   9m57s   v1.25.4
node1    Ready    <none>          71s     v1.25.4
node2    Ready    <none>          51s     v1.25.4

使用k8s集群創建一個pod，運行nginx容器，然後進行測試

[root@master ~]#kubectl create  deployment  nginx  --image nginx
deployment.apps/nginx created
[root@master ~]#kubectl  get  pods
NAME                    READY   STATUS    RESTARTS   AGE
nginx-76d6c9b8c-z7p4l   1/1     Running   0          35s
[root@master ~]#kubectl  expose  deployment  nginx  --port 80  --type NodePort
service/nginx exposed
[root@master ~]#kubectl  get  pods  -o  wide
NAME                    READY   STATUS    RESTARTS   AGE    IP           NODE    NOMINATED NODE   READINESS GATES
nginx-76d6c9b8c-z7p4l   1/1     Running   0          119s   10.244.1.2   node1   <none>           <none>
[root@master ~]#kubectl  get  services
NAME         TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE
kubernetes   ClusterIP   10.96.0.1       <none>        443/TCP        15m
nginx        NodePort    10.109.37.202   <none>        80:31125/TCP   17s

測試訪問

修改默認網頁

[root@master ~]# kubectl exec -it pod/nginx-76d6c9b8c-z7p4l -- /bin/bash
root@nginx-76d6c9b8c-z7p4l:/# cd /usr/share/nginx/html/
echo "zhaoshulin" > index.html

Tags: Kubernetes

K8s集群環境搭建

K8s集群環境搭建

1、環境規劃

1.1 集群類型

1.2 安裝方式

1.3 準備環境

2、環境搭建

2.1 主機安裝

2.2 環境初始化

2.3、安裝docker

2.4 安裝kubernetes組件

VirMach 便宜 VPS

QNews

K8s集群環境搭建

K8s集群環境搭建

1、環境規劃

1.1 集群類型

1.2 安裝方式

1.3 準備環境

2、環境搭建

2.1 主機安裝

2.2 環境初始化

2.3、安裝docker

2.4 安裝kubernetes組件

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