Github Actions连不上服务器问题，求指教

一. 目的

想在提交代码后触发 ssh连接，并执行服务器中的sh文件.

二. 问题

现在执行报错：ssh: handshake failed: ssh: unable to authenticate, attempted methods [none publickey], no supported methods remain

三. 我的操作步骤

• 生成ssh公钥并加入到了setting->SSH and GPG keys中：

  # 生成公钥
  ssh-keygen -t rsa -b 4096 -C "1****1@qq.com"
  # 复制公钥
  cat /root/.ssh/id_rsa.pub

• 将私钥配置到Settings->Secrets and variables -> actions中：

  # 复制私钥
  cat /root/.ssh/id_rsa

• 编写yml文件：

name: Deploy

on: 
  push:
    branches:
      - main # 监听main分支
jobs:
  deploy:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2

    - name: Deploy to server
      uses: appleboy/ssh-action@master
      with:
        host: 123.249.31.52
        username: root
        key: ${{ secrets.SSH_PRIVATE_KEY }}
        script: |
          cd /root/app/github-actions
          ./website.sh

四. 执行报错：

本作品采用《CC 协议》，转载必须注明作者和本文链接