Fabric: 无法使用 `sudo` `context.put` 一个文件。

创建于 2018-05-14 · 3评论 · 资料来源: fabric/fabric

在 v2 中， use_sudo=True参数不再存在。
如果我尝试在远程主机上复制文件，这就是我得到的：

Traceback (most recent call last):
  File "env/bin/fab", line 9, in <module>
    load_entry_point('fabric==2.0.0', 'console_scripts', 'fab')()
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/invoke/program.py", line 332, in run
    self.execute()
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/invoke/program.py", line 480, in execute
    executor.execute(*self.tasks)
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/invoke/executor.py", line 133, in execute
    result = call.task(*args, **call.kwargs)
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/invoke/tasks.py", line 127, in __call__
    result = self.body(*args, **kwargs)
  File "/home/tim/Workspace/wintest/fabfile.py", line 131, in nginx
    context.put(StringIO(nginx_conf), remote='/etc/nginx/sites-enabled/website')
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/fabric/connection.py", line 639, in put
    return Transfer(self).put(*args, **kwargs)
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/fabric/transfer.py", line 213, in put
    sftp.putfo(fl=local, remotepath=remote)
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/paramiko/sftp_client.py", line 683, in putfo
    with self.file(remotepath, 'wb') as fr:
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/paramiko/sftp_client.py", line 341, in open
    t, msg = self._request(CMD_OPEN, filename, imode, attrblock)
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/paramiko/sftp_client.py", line 780, in _request
    return self._read_response(num)
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/paramiko/sftp_client.py", line 832, in _read_response
    self._convert_status(msg)
  File "/home/tim/Workspace/wintest/env/lib/python3.5/site-packages/paramiko/sftp_client.py", line 863, in _convert_status
    raise IOError(errno.EACCES, text)
PermissionError: [Errno 13] Permission denied

资料来源

TimotheeJeannin

最有用的评论

@geoffrey-eisenbarth 目前没有“有福”的方法 - 请参阅http://www.fabfile.org/upgrading.html#file -transfer 下有关 sudo 的内容

现在，你想做一些基本的事情，比如

c.put("path/to/local/nginx.conf") # implicit to remote $HOME
c.sudo("mv nginx.conf /etc/nginx/") # again implicitly with a CWD of $HOME

bitprophet 于 2018-07-18

👍4 😕1

所有3条评论

这记录在http://docs.fabfile.org/en/latest/upgrading.html#id15 中。似乎没有很好的单命令替换 - 例如你不能使用c.sudo("install … /dev/stdin /path/to/remote") - 而且sudo()中似乎有一个错误，它阻止了使用tee （它永远不会终止，只是让命令挂起等待输入）。

这是我一直用来做临时文件舞蹈的东西，可以说这是你应该始终做的事情，以避免留下具有意外权限的文件：

def sudo_install(connection, source, dest, *, owner='root', group='root', mode='0600'):
    """
    Helper which installs a file with arbitrary permissions and ownership

    This is a replacement for Fabric 1's `put(…, use_sudo=True)` and adds the
    ability to set the expected ownership and permissions in one operation.
    """

    mktemp_result = connection.run('mktemp', hide='out')
    assert mktemp_result.ok

    temp_file = mktemp_result.stdout.strip()

    try:
        connection.put(source, temp_file)
        connection.sudo(f'install -o {owner} -g {group} -m {mode} {temp_file} {dest}')
    finally:
        connection.run(f'rm {temp_file}')

调用例如

<strong i="14">@task</strong>
def install_mount_status_monitor(conn):
    sudo_install(conn, override_file, "/etc/systemd/system/mount_status_monitor.service.d/override.conf")

acdha 于 2018-05-17

👍2

这是尝试将本地文件复制到用户主目录之外的远程服务器时使用的预期路由吗？

使用 Fabric 并将文件复制到 /etc/nginx/ 的预期方式是什么？我正在尝试找到使用upload_template等的 fabric2 方式。

geoffrey-eisenbarth 于 2018-07-17

👍2