1. # 关闭防火墙
    2. systemctl stop firewalld && systemctl disable firewalld
    4. # 关闭selinux
    5. sed -i 's/enforcing/disabled/' /etc/selinux/config  && setenforce 0  
    7. # 关闭swap
    8. swapoff -a && sed -ri 's/.*swap.*/#&/' /etc/fstab   
    10. # 根据规划设置主机名
    11. hostnamectl set-hostname <hostname>
    13. # 在master添加hosts
    14. cat >> /etc/hosts << EOF
    15. 192.168.31.253    master.k8s.io   k8svip
    16. 192.168.31.252    master01.k8s.io k8smaster01
    17. 192.168.31.182    master02.k8s.io k8smaster02
    18. 192.168.31.80     node01.k8s.io   k8snode01
    19. 192.168.31.126    node01.k8s.io   k8snode02
    20. EOF
    22. # 将桥接的IPv4流量传递到iptables的链
    23. cat > /etc/sysctl.d/k8s.conf << EOF
    24. net.bridge.bridge-nf-call-ip6tables = 1
    25. net.bridge.bridge-nf-call-iptables = 1
    26. EOF
    27. sysctl --system  # 生效
    29. # 时间同步
    30. yum install ntpdate -y
    31. ntpdate time.windows.com
    33. # 更改源
    34. cat <<EOF > /etc/yum.repos.d/kubernetes.repo
    35. [kubernetes]
    36. name=Kubernetes
    37. baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
    38. enabled=1
    39. gpgcheck=1
    40. repo_gpgcheck=1
    41. gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
    42. EOF