1. 在 Jenkins 服务器上执行以下命令
# 生成 SSH 密钥对
ssh-keygen -t rsa -b 2048 -f ~/.ssh/id_rsa -N ""
# 查看公钥内容
cat ~/.ssh/id_rsa.pub
2. 将显示的公钥内容复制,然后在目标服务器上执行
# 在目标服务器上执行
mkdir -p /root/.ssh
chmod 700 /root/.ssh
echo "这里粘贴Jenkins服务器上生成的公钥" >> /root/.ssh/authorized_keys
chmod 600 /root/.ssh/authorized_keys
3. 在目标服务器上检查 SSH 配置
# 在目标服务器上执行
cat /etc/ssh/sshd_config | grep -E "PubkeyAuthentication|PasswordAuthentication|PermitRootLogin"
# 如果需要修改配置
vi /etc/ssh/sshd_config
# 确保以下设置正确:
PubkeyAuthentication yes
PasswordAuthentication yes
PermitRootLogin yes
# 重启SSH服务
systemctl restart sshd
4. 配置完成后,在 Jenkins 服务器上测试连接
# 在Jenkins服务器上执行
ssh -v root@10.53.3.69
5. 如果你远程属性PasswordAuthentication不小心设置成false,以下是解决方案
pipeline {
agent any
environment {
TARGET_SERVER = 'ip'
JENKINS_HOME = '/var/lib/jenkins'
}
stages {
stage('Modify SSH Config') {
steps {
script {
try {
// 修改 SSH 配置,启用密码认证
sh '''
echo "=== 修改 SSH 配置 ==="
ssh -F ${JENKINS_HOME}/.ssh/config ${TARGET_SERVER} "sudo sed -i 's/^PasswordAuthentication no/PasswordAuthentication yes/' /etc/ssh/sshd_config"
echo "=== 重启 SSH 服务 ==="
ssh -F ${JENKINS_HOME}/.ssh/config ${TARGET_SERVER} "sudo systemctl restart sshd"
echo "=== 验证配置 ==="
ssh -F ${JENKINS_HOME}/.ssh/config ${TARGET_SERVER} "cat /etc/ssh/sshd_config | grep PasswordAuthentication"
'''
} catch (Exception e) {
echo "Error: ${e.message}"
currentBuild.result = 'FAILURE'
}
}
}
}
}
}