前端运维不得不学会的命令

Docker相关

• 上传文件到dev1：

1scp 本地文件名 username@servername:/path/filename

• 下载文件到本地：(在本地电脑执行，如果是目录，加上 -r 即可)

1scp username@servername:/path/filename /var/www/local_dir

• 进入Docker容器

1docker exec -it 容器名称 bash

• 拷贝本地文件到Docker容器内部

1docker cp 本地文件名  容器名称:/home

• 从容器内部拷贝到本地

1sudo docker cp 容器名称:/容器内文件路径 宿主机路径

• 停止和删除容器

1docker stop 容器名称 && docker rm 容器名称

• 启动容器

1docker run -dit --name 容器名称 -p 3000:3000 容器镜像存放的位置:1.0.1

• 重启容器

1docker restart fe-node-linguang

• 查看容器状态

1docker ps -a | grep 容器名称

• 查看容器日志

1docker logs -f 容器名称

SSH相关

• ssh 登录不上去的时候，有可能是config文件指定的失效了，可以通过强制指定秘钥来验证一下：

  ssh -i 秘钥文件 xx@xxx.com

• 如果出现：Host key for github.com has changed and you have requested strict checking.Host key verification failed，示例如下：

1Cloning into 'doumi-blog'...
2@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
3@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
4@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
5IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
6Someone could be eavesdropping on you right now (man-in-the-middle attack)!
7It is also possible that a host key has just been changed.
8The fingerprint for the RSA key sent by the remote host is
9SHA256:uNiVztksCsDhcc0u9e8BujQXVUpKZIDTMczCvj3tD2s.
10Please contact your system administrator.
11Add correct host key in /Users/linxiaowu/.ssh/known_hosts to get rid of this message.
12Offending RSA key in /Users/linxiaowu/.ssh/known_hosts:4
13Host key for github.com has changed and you have requested strict checking.
14Host key verification failed.
15fatal: Could not read from remote repository.
16
17Please make sure you have the correct access rights
18and the repository exists.

这个时候执行下面命令，即可修复：

1ssh-keyscan -t rsa github.com >> ~/.ssh/known_hosts

• 如果报错：no matching host key type found. Their offer: ssh-rsa" when trying to connect with SSH，参考下面的文档处理方式： I get the error "no matching host key type found. Their offer: ssh-rsa" when trying to connect with SSH