Linux记录-ssh无密码执行脚本

1.配置sudo无密码登陆

vim /etc/sudoers.d/app
app ALL=(ALL) ALL
app ALL=(ALL) NOPASSWD: ALL
Defaults !env_reset

2.脚本参考

#!/bin/bash
set -e 

version=xxx
pre_version=xxx
user=xxx
ssh_port=22
dir=xx
iplist=(xxx)

for ip in ${iplist[@]}
do
    ssh -p $ssh_port -tt $user@$ip << eeooff
   xxx
eeooff
    scp -P $ssh_port  xx $user@$ip:$dir
  	ssh -p $ssh_port -tt $user@$ip << eeooff
    ln -sf  xxx
    xxx
eeooff
done

#!/bin/bash
yum -y install sshpass

# confirm the user of the operation 
echo "The current user is `whoami`"

# 1.generate the key pair
# 判断key是否已经存在，如果不存在就生成新的key
if [ -f ~/.ssh/id_rsa ];then
    echo "rsa ssh-key file already exists" /bin/true
else
    echo "rsa ssh-key file does not exists"
    ssh-keygen -t rsa -f ~/.ssh/id_rsa -P "" >/dev/null 2>&1
    if [ $? -eq 0 ];then
        echo "generate rsa ssh-key" /bin/true
    else
        echo "generate rsa ssh-key" /bin/false
        exit 1
    fi
fi

# 2.distribution public key
for host in $(cat ./ssh-ip | grep -v "#" | grep -v ";" | grep -v "^$")
do
    ip=$(echo ${host} | cut -f1 -d ":")
    password=$(echo ${host} | cut -f2 -d ":")
    user=root
    port_ip=$(echo ${user}@${ip})
    sshpass -p "${password}" ssh-copy-id -i ~/.ssh/id_rsa.pub -o StrictHostKeyChecking=no ${port_ip}
    if [ $? -eq 0 ];then
        echo "${ip} distribution public key" /bin/true
    else
        echo "${ip} distribution public key" /bin/false
        exit 1
    fi
done
vim  ssh-ip
# 格式如下：
ip:密码