设置主机名、网络、防火墙、selunx、镜像仓库地址
    vim init.sh

    1. #!/bin/bash
    3. echo -e "\n===========\e[32m设置hostname\e[0m=============="
    4. # 设置主机名
    5. read -p "Enter hostname(`hostname`):" hostname
    6. if [[ $hostname ]];then
    7.         hostnamectl set-hostname $hostname
    8.     echo -e "\e[32m设置主机名:$hostname 成功！\e[0m"
    9. else
    10.     echo -e "\e[32m设置主机名:`hostname` 成功！\e[0m"
    11. fi
    13. echo -e "\n===========\e[32m设置network\e[0m==============="
    14. # 正则
    15. cidr_reg="^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])/([1-9]|[1-2][0-9]|3[12])$"
    16. ip_reg="^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$"
    18. # 设置网络ip
    19. read -p "设置网络ip(eg:192.168.1.1/24):" address
    20. address=`echo $address | grep -Eoe ${cidr_reg}`
    22. # 设置网关
    23. read -p "设置网关(eg:192.168.1.254):" gateway
    24. gateway=`echo $gateway | grep -Eoe ${ip_reg}`
    25. if [[ $address && $gateway ]];then
    26.     nmcli connection modify eth0 \
    27.     connection.autoconnect yes \
    28.     ipv4.method manual \
    29.     ipv4.addresses $address \
    30.     ipv4.gateway $gateway
    31.      # 激活网卡     
    32.     nmcli connection up eth0
    33. else
    34.     echo -e "\e[31m输入的参数无效!\e[0m"
    35. fi
    37. # 是否关闭防火墙
    38. echo -e "\n===========\e[32m设置firewalld\e[0m============="
    39. read -p "是否关闭防火墙?[y/n]:" action
    40. case $action in
    41.     y|Y|YES|yes) 
    42.         systemctl disable firewalld && systemctl stop firewalld && echo -e "\e[32m防火墙关闭成功!\e[0m"
    43.         ;;
    44.     n|N|NO|no)
    45.         systemctl enable firewalld && systemctl restart firewalld && echo -e "\e[32m防火墙启动成功!\e[0m"
    46.         ;;
    47. esac
    50. # 是否关闭selinux
    51. echo -e "\n===========\e[32m设置selinux\e[0m==============="
    52. read -p "是否关闭selinux?[y/n]:" action
    53. case $action in
    54.         y|Y|YES|yes)
    55.         setenforce 0 && sed -i 's/^SELINUX=.*/SELINUX=disabled/' /etc/selinux/config && echo -e "\e[32mselinux关闭成功！\e[0m"
    56.                 ;;
    57.     n|N|NO|no)
    58.         setenforce 1 && sed -i 's/^SELINUX=.*/SELINUX=enforcing/' /etc/selinux/config && echo -e "\e[32mselinux开启成功！\e[0m" 
    59.         ;;
    60. esac
    62. echo -e "\n=============\e[32m设置yum\e[0m================="
    63. read -p "设置yum镜像仓库(default:192.100.3.221):" yum_repository
    64. yum_repository=`echo $yum_repository | grep -Eoe ${ip_reg}`
    65. if [[ ! $yum_repository ]];then
    66.         yum_repository=192.100.3.221
    67. fi
    69. if [[ `grep "yum_repository" /etc/hosts` ]];then
    70.     sed -ri "/yum_repository/"c"$yum_repository yum_repository" /etc/hosts
    71. else
    72.     echo "$yum_repository yum_repository" >>  /etc/hosts
    73. fi
    74. echo -e "\n======\e[32m测试镜像仓库的网络连通性\e[0m======"
    75. ping yum_repository -w 3