server: 192.168.66.100
master: 192.168.66.101
node1: 192.168.66.102

1.rancher server 安装docker

所有主机开通ipv4

vi /etc/sysctl.conf

#加入
net.ipv4.ip_forward = 1

#配置生效
sysctl -p

rancher-server开通docker服务:

yum remove docker*
yum install -y yum-utils

#配置docker的yum地址
yum-config-manager \
  --add-repo \
   http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo



#安装最新版本
yum install -y docker-ce docker-ce-cli

#	启动&开机启动docker
systemctl enable docker --now

# docker加速配置
mkdir -p /etc/docker
tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://82m9ar63.mirror.aliyuncs.com"],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2"
}
EOF
systemctl daemon-reload
systemctl restart docker

rancher-server 用docker运行 rancher

docker run -d --privileged -p 80:80 -p 443:443 -v /opt/data/rancher_data/:/var/lib/rancher --restart=always --name rancher rancher/rancher:v2.7.5

2.部署k8s

master:

curl -fL https://192.168.66.100/system-agent-install.sh | sudo  sh -s - --server https://192.168.66.100 --label 'cattle.io/os=linux' --token 6fr2r8wwdgrxdrqlzg2g2lwl2dwwmms8g49bg54s8chtmjrd4kpd7d --ca-checksum dcb5f0234226851d165c2ea0d212506b6f560eddf84af9e6200bbac4576280f5 --etcd --controlplane --worker

node1:

curl -fL https://192.168.66.100/system-agent-install.sh | sudo  sh -s - --server https://192.168.66.100 --label 'cattle.io/os=linux' --token 6fr2r8wwdgrxdrqlzg2g2lwl2dwwmms8g49bg54s8chtmjrd4kpd7d --ca-checksum dcb5f0234226851d165c2ea0d212506b6f560eddf84af9e6200bbac4576280f5 --worker

等待:

3.kubeconfig

master:

mkdir /root/.kube

cd .kube/

vi config

apiVersion: v1
kind: Config
clusters:
- name: "cluster"
  cluster:
    server: "https://192.168.66.100/k8s/clusters/c-m-bjcmdw4j"
    certificate-authority-data: "LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUJ2RENDQ\
      VdPZ0F3SUJBZ0lCQURBS0JnZ3Foa2pPUFFRREFqQkdNUnd3R2dZRFZRUUtFeE5rZVc1aGJXbGoKY\
      kdsemRHVnVaWEl0YjNKbk1TWXdKQVlEVlFRRERCMWtlVzVoYldsamJHbHpkR1Z1WlhJdFkyRkFNV\
      GN4TlRBMQpPVEl4TnpBZUZ3MHlOREExTURjd05USXdNVGRhRncwek5EQTFNRFV3TlRJd01UZGFNR\
      Vl4SERBYUJnTlZCQW9UCkUyUjVibUZ0YVdOc2FYTjBaVzVsY2kxdmNtY3hKakFrQmdOVkJBTU1IV\
      1I1Ym1GdGFXTnNhWE4wWlc1bGNpMWoKWVVBeE56RTFNRFU1TWpFM01Ga3dFd1lIS29aSXpqMENBU\
      VlJS29aSXpqMERBUWNEUWdBRW9EMHkrOFovRzF2NgprYWpLbE15ejFaYnZGQVFER21yV1Axb2JvQ\
      1BXajZ5OFRLLzVlTUhwNHQyYVBxSUJVQ0M4bnZGMzV4R3pUUlJMCnJkQ214aEJOOGFOQ01FQXdEZ\
      1lEVlIwUEFRSC9CQVFEQWdLa01BOEdBMVVkRXdFQi93UUZNQU1CQWY4d0hRWUQKVlIwT0JCWUVGQ\
      VFxK05ONHovTERWT3Zpb3VQL1d2cC9XQ1NCTUFvR0NDcUdTTTQ5QkFNQ0EwY0FNRVFDSUFFNQp1W\
      nNQdktwY3JtYjA3QUVCTFJLN240ZW1UTU5RaWJONUw4dzd1OTFDQWlBQTZaZVFNMVY1dWF4b0VKT\
      mg0VWlFCk9LU0FyaHRlRWhhaklIRGpxWkVOR0E9PQotLS0tLUVORCBDRVJUSUZJQ0FURS0tLS0t"

users:
- name: "cluster"
  user:
    token: "kubeconfig-user-fmcqm8r5rt:p9fzkm6h4ccrsmrldldxnb8qfd92ttzvlpf9dr6djx5hw2hn48mnvz"


contexts:
- name: "cluster"
  context:
    user: "cluster"
    cluster: "cluster"

current-context: "cluster"

#配置k8s的yum源地址
cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=http://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=http://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
   http://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF


#安装 kubelet，kubeadm，kubectl
sudo yum install -y kubelet

#启动kubelet
sudo systemctl enable --now kubelet

于是在master节点上也可以进行命令kubectl get nodes

4.测试集群

kubectl create deployment nginx --image=nginx:alpine --replicas=2

kubectl create service nodeport nginx --tcp=80:80

curl 10.43.18.212