需求

最近在部署程序的时候发现，一共三个语言，6台设备，每台设备3个模块，每个模块3种语言，总共6台设备下来要部署54个程序，工作重复繁琐不说，很容易出现漏部署或者错误，想到了使用一键脚本部署程序的方式，把程序的tar包和shell脚本分别通过统一入口放置，在入口处执行脚本，分别把tar包和执行脚本远程发送到对应的机器和对应的模块上去执行，这样就不用一个一个模块上传程序，再操作，因此想到了一种方式ssh免密登录的方式，通过一台机器去连接到其他所有要部署的机器上，把程序传输过去，前提是这些机器必须是在同一网段内，如果是在一个交换机下面，必须是在同一vlan下面。好了废话不多说，接下去第一步实现免密登录。

实现免密登录

免密登录很简单，网上一搜很容易就能知道怎么做，我们看下过程：

• 客户端生成公私钥
  此客户端就是我们要统一放置程序的地方，需要部署的机器我们称之为服务端，本地客户端生成公私钥：（一路回车默认即可）

  ssh-keygen

  上面这个命令会在用户目录.ssh文件夹下创建公私钥

  cd ~/.ssh
  ls

  

• 上传公钥到服务端
  我们随机选择一台机器作为服务端，然后把第一步生成的公钥复制一份传到服务端，然后把公钥内容写入到authorized_keys文件内

  cat id_rsa.pub >authorized_keys

  可以看到客户端写入到服务器的 id_rsa.pub （公钥）内容。
  

• 测试下免密登录

  ssh root@10.21.4.155

  
  第一次需要输入yes才能访问！
  可以看到我们的免密登录功能做好了，剩下的就是怎么把我们的程序，脚本发送过去，批量执行的问题了。

实现一键部署

我们做了一个ci.sh的一键部署脚本，所有的程序tar包和部署脚本放在了deploy目录，执行ci.sh就可以了

#!/bin/bash
set -e
#######################################################################
# #4、#5、#6的相应模块的调试口ip
left2="10.21.4.121"
left2_2="10.21.4.122"
right2="10.21.4.124"
schedule2="10.21.4.123"
executor2_5="10.21.4.125"
executor2_6="10.21.4.126"
executor2_7="10.21.4.127"

left3="10.21.4.131"
left3_2="10.21.4.132"
right3="10.21.4.134"
schedule3="10.21.4.133"
executor3_5="10.21.4.135"
executor3_6="10.21.4.136"
executor3_7="10.21.4.137"

# 部署的时候指定执行体被复制到板卡的哪个目录

function help_info()
{
    echo "help"
}
#######################################################################
script_dir=$(cd "$(dirname "$0")"; pwd)
script_name=$(basename $0)
script_path=$script_dir/$script_name
real_script_path=$(readlink -f `which $script_path`)
real_script_dir=$(dirname $real_script_path)
image_dir=$real_script_dir/deploy

wip="30.30.30.23"
bip="192.168.1.46"
machine_num=0
ip="0.0.0.0"
isw=0
isb=0

isdeploy=0
com=0
lange=0

short_opts="b:w:n:i:dc:l:h"
ARGS=`getopt -o ${short_opts} -n 'switch.sh' -- "$@"`
if [[ $? != 0 ]]; then
    echo "Terminating..."
    exit 1
fi

#将规范化后的命令行参数分配至位置参数（$1,$2,...)
eval set -- "${ARGS}"

while true
do
    case "$1" in
        -w)
            isw=1
            wip=$2
            shift 2
            ;;
        -b)
            isb=1
            bip=$2
            shift 2
            ;;
        -n)
            machine_num=$2
            shift 2
            ;;
        -d)
            isdeploy=1
            shift 1
            ;;
        -c)
            com=$2
            #echo $com
            shift 2
            ;;

        -l)
            lange=$2
            #echo $lange
            shift 2
            ;;
        -h)
            help_info
            shift 1
            ;;
        --)
            module=$2
            shift 2
            break
            ;;
        *)
            echo "Internal error!"
            exit 1
            ;;
    esac
done

############################################################
#处理剩余的无法识别的参数
unknown_arg=$@
for arg in $unknown_arg
do
    echo "unknown argument $arg"
done

if [[ ${#unknown_arg} -ne 0 ]];then
    exit 127
fi
############################################################

function deploy()
{
    #将命令行指定的密码机号和模块号映射成具体的模块ip，存放在executor变量中
    local executor=$(eval echo \$executor$1_$2)
    local language=$3

    #echo $executor
    if [[ $language = "java" ]];then
        ssh -t root@$executor "systemctl stop scheduleClient"
        if [[ $2 -eq 5 ]];then
            scp -r $image_dir/java/deploy-java-com$2.sh root@$executor:/home/
            scp -r $image_dir/java/de_ht_nt.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-java-com$2.sh && ./deploy-java-com$2.sh"
        elif [[ $2 -eq 6 ]];then
            scp -r $image_dir/java/deploy-java-com$2.sh root@$executor:/home/
            scp -r $image_dir/java/ub_ng_nt.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-java-com$2.sh && ./deploy-java-com$2.sh"
        elif [[ $2 -eq 7 ]];then
            scp -r $image_dir/java/deploy-java-com$2.sh root@$executor:/home/
            scp -r $image_dir/java/ce_ht_nt.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-java-com$2.sh && ./deploy-java-com$2.sh"
        fi
        ssh -t root@$executor "systemctl start scheduleClient"
    elif [[ $language = "php" ]];then
        ssh -t root@$executor "systemctl stop scheduleClient"
        if [[ $2 -eq 5 ]];then
            scp -r $image_dir/php/deploy-php-com$2.sh root@$executor:/home/
            scp -r $image_dir/php/centos_apache_ci.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-php-com$2.sh && ./deploy-php-com$2.sh"
        elif [[ $2 -eq 6 ]];then
            scp -r $image_dir/php/deploy-php-com$2.sh root@$executor:/home/
            scp -r $image_dir/php/debian_nginx_ci.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-php-com$2.sh && ./deploy-php-com$2.sh"
        elif [[ $2 -eq 7 ]];then
            scp -r $image_dir/php/deploy-php-com$2.sh root@$executor:/home/
            scp -r $image_dir/php/ubuntu_apache_ci.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-php-com$2.sh && ./deploy-php-com$2.sh"
        fi
        ssh -t root@$executor "systemctl start scheduleClient"
    elif [[ $language == "python" ]];then
        ssh -t root@$executor "systemctl stop scheduleClient"
        if [[ $2 -eq 5 ]];then
            scp -r $image_dir/python/deploy-python-com$2.sh root@$executor:/home/
            scp -r $image_dir/python/cm_un_env_v1.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-python-com$2.sh && ./deploy-python-com$2.sh"
        elif [[ $2 -eq 6 ]];then
            scp -r $image_dir/python/deploy-python-com$2.sh root@$executor:/home/
            scp -r $image_dir/python/cm_ca_env_v1.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-python-com$2.sh && ./deploy-python-com$2.sh"
        elif [[ $2 -eq 7 ]];then
            scp -r $image_dir/python/deploy-python-com$2.sh root@$executor:/home/
            scp -r $image_dir/python/cm_dn_env_v1.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-python-com$2.sh && ./deploy-python-com$2.sh"
        fi
        ssh -t root@$executor "systemctl start scheduleClient"
    elif [[ $language -eq 0 ]];then
        ssh -t root@$executor "systemctl stop scheduleClient"
        #部署php
        if [[ $2 -eq 5 ]];then
            scp -r $image_dir/php/deploy-php-com$2.sh root@$executor:/home/
            scp -r $image_dir/php/centos_apache_ci.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-php-com$2.sh && ./deploy-php-com$2.sh"
        elif [[ $2 -eq 6 ]];then
            scp -r $image_dir/php/deploy-php-com$2.sh root@$executor:/home/
            scp -r $image_dir/php/debian_nginx_ci.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-php-com$2.sh && ./deploy-php-com$2.sh"
        elif [[ $2 -eq 7 ]];then
            scp -r $image_dir/php/deploy-php-com$2.sh root@$executor:/home/
            scp -r $image_dir/php/ubuntu_apache_ci.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-php-com$2.sh && ./deploy-php-com$2.sh"
        fi

        #部署python
        if [[ $2 -eq 5 ]];then
            scp -r $image_dir/python/deploy-python-com$2.sh root@$executor:/home/
            scp -r $image_dir/python/cm_un_env_v1.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-python-com$2.sh && ./deploy-python-com$2.sh"
        elif [[ $2 -eq 6 ]];then
            scp -r $image_dir/python/deploy-python-com$2.sh root@$executor:/home/
            scp -r $image_dir/python/cm_ca_env_v1.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-python-com$2.sh && ./deploy-python-com$2.sh"
        elif [[ $2 -eq 7 ]];then
            scp -r $image_dir/python/deploy-python-com$2.sh root@$executor:/home/
            scp -r $image_dir/python/cm_dn_env_v1.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-python-com$2.sh && ./deploy-python-com$2.sh"
        fi

        #部署java
        if [[ $2 -eq 5 ]];then
            scp -r $image_dir/java/deploy-java-com$2.sh root@$executor:/home/
            scp -r $image_dir/java/de_ht_nt.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-java-com$2.sh && ./deploy-java-com$2.sh"
        elif [[ $2 -eq 6 ]];then
            scp -r $image_dir/java/deploy-java-com$2.sh root@$executor:/home/
            scp -r $image_dir/java/ub_ng_nt.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-java-com$2.sh && ./deploy-java-com$2.sh"
        elif [[ $2 -eq 7 ]];then
            scp -r $image_dir/java/deploy-java-com$2.sh root@$executor:/home/
            scp -r $image_dir/java/ce_ht_nt.tar root@$executor:/home/
            ssh -t root@$executor "cd /home/ && chmod u+x deploy-java-com$2.sh && ./deploy-java-com$2.sh"
        fi
        ssh -t root@$executor "systemctl start scheduleClient"
    fi
}

#machine_num、com、lange
function exe()
{
    local mchi_num=$1
    local com_num=$2
    local lang=$3
    local all_mchi_num="2 3"
    local mchi_isexist=`expr index "$all_mchi_num" $mchi_num` #isexit为0，不存在，非0存在
    local all_com_num="5 6 7"
    local com_isexist=`expr index "$all_com_num" "$com_num"`

    if [[ $mchi_num == "all" ]];then
        for i in $all_mchi_num
        do
            for((j=5;j<=7;j++))
            do
                deploy $i $j 0
                #echo $i $j
            done
        done
    elif [[ $mchi_isexist -ne 0  && $com_isexist -ne 0 ]];then
        deploy $mchi_num $com_num $lange
        #echo $mchi_num $com_num $lange
    elif [[ $mchi_isexist -ne 0 && $com_num -eq 0 ]];then
        #echo $mchi_num $com_num $lange
        deploy $mchi_num 5 $lange
        deploy $mchi_num 6 $lange
        deploy $mchi_num 7 $lange
    fi
}

function left()
{
    echo "function left"
}

function sche()
{
    echo "function sche"
}

function cmn()
{
    local mchi_num=$1
    local com_num=$2
    local executor=$(eval echo \$executor$1_$2)
    local left=$(eval echo \$left$1)
    local left2=$(eval echo \$left$1_2)

    local schedule=$(eval echo \$schedule$1)
    local right=$(eval echo \$right$1)

    local all_mchi_num="2 3"
    local mchi_num_isexist=`expr index "$all_mchi_num" $mchi_num` #isexit为0，不存在，非0存在
    if [[ $mchi_num_isexist -eq 0 ]];then
        echo "nothing done!!!"
        exit 127
    fi

    if [[ $com_num -eq 1 ]];then
        scp -r $image_dir/cmnmod/web_left.tar root@$left:/home/
        scp -r $image_dir/cmnmod/web_left.sh root@$left:/home/
        ssh -t root@$left "cd /home/ && chmod a+x web_left.sh && ./web_left.sh"
    elif [[ $com_num -eq 2 ]];then
        scp -r $image_dir/cmnmod/csm_left.tar root@$left2:/home/
        scp -r $image_dir/cmnmod/csm_left.sh root@$left2:/home/
        ssh -t root@$left2 "cd /home/ && chmod a+x csm_left.sh && ./csm_left.sh"
    elif [[ $com_num -eq 3 ]];then
        scp -r $image_dir/cmnmod/dispatch.tar root@$schedule:/home/
        scp -r $image_dir/cmnmod/dispatch.sh root@$schedule:/home/
        ssh -t root@$schedule "cd /home/ && chmod a+x dispatch.sh && ./dispatch.sh"
    elif [[ $com_num -eq 4 ]];then
        scp -r $image_dir/cmnmod/right.tar root@$right:/home/
        scp -r $image_dir/cmnmod/right.sh root@$right:/home/
        ssh -t root@$right "cd /home/ && chmod a+x right.sh && ./right.sh"
    elif [[ $com_num -eq 5 ]];then
        scp -r $image_dir/cmnmod/executor1.sh root@$executor:/home/
        scp -r $image_dir/cmnmod/executor1.tar root@$executor:/home/
        ssh -t root@$executor "cd /home/ && chmod a+x executor1.sh && ./executor1.sh"
    elif [[ $com_num -eq 6 ]];then
        scp -r $image_dir/cmnmod/executor2.sh root@$executor:/home/
        scp -r $image_dir/cmnmod/executor2.tar root@$executor:/home/
        ssh -t root@$executor "cd /home/ && chmod a+x executor2.sh && ./executor2.sh"
    elif [[ $com_num -eq 7 ]];then
        scp -r $image_dir/cmnmod/executor3.sh root@$executor:/home/
        scp -r $image_dir/cmnmod/executor3.tar root@$executor:/home/
        ssh -t root@$executor "cd /home/ && chmod a+x executor3.sh && ./executor3.sh"
    elif [[ $com -eq 0 ]];then
        scp -r $image_dir/cmnmod/web_left.tar root@$left:/home/
        scp -r $image_dir/cmnmod/web_left.sh root@$left:/home/
        ssh -t root@$left "cd /home/ && chmod a+x web_left.sh && ./web_left.sh"

        scp -r $image_dir/cmnmod/csm_left.tar root@$left2:/home/
        scp -r $image_dir/cmnmod/csm_left.sh root@$left2:/home/
        ssh -t root@$left2 "cd /home/ && chmod a+x csm_left.sh && ./csm_left.sh"

        scp -r $image_dir/cmnmod/dispatch.tar root@$schedule:/home/
        scp -r $image_dir/cmnmod/dispatch.sh root@$schedule:/home/
        ssh -t root@$schedule "cd /home/ && chmod a+x dispatch.sh && ./dispatch.sh"

        scp -r $image_dir/cmnmod/right.tar root@$right:/home/
        scp -r $image_dir/cmnmod/right.sh root@$right:/home/
        ssh -t root@$right "cd /home/ && chmod a+x right.sh && ./right.sh"

        executor=$(eval echo \$executor$1_5)
        scp -r $image_dir/cmnmod/executor1.sh root@$executor:/home/
        scp -r $image_dir/cmnmod/executor1.tar root@$executor:/home/
        ssh -t root@$executor "cd /home/ && chmod a+x executor1.sh && ./executor1.sh"

        executor=$(eval echo \$executor$1_6)
        scp -r $image_dir/cmnmod/executor2.sh root@$executor:/home/
        scp -r $image_dir/cmnmod/executor2.tar root@$executor:/home/
        ssh -t root@$executor "cd /home/ && chmod a+x executor2.sh && ./executor2.sh"

        executor=$(eval echo \$executor$1_7)
        scp -r $image_dir/cmnmod/executor3.sh root@$executor:/home/
        scp -r $image_dir/cmnmod/executor3.tar root@$executor:/home/
        ssh -t root@$executor "cd /home/ && chmod a+x executor3.sh && ./executor3.sh"
    fi
}

if [[ $module == "left" ]];then
    echo "function left"
elif [[ $module == "right" ]];then
    echo "right"
elif [[ $module == "cmn" ]];then
    cmn $machine_num $com
elif [[ $module == "sch" ]];then
    echo "sche"
elif [[ $module == "exe" ]];then
    exe $machine_num $com $lange
fi