libcloud FileDeployment SSHClient._transport is NoneType

Question

>>>dns_node = [i for i in conn.list_nodes() if i.uuid == 'xxxxxxxxxxxxxxxxxxxxxxx07xxxxxxxxxx']
>>>try_script = 'path/to/somefile.py'
>>>dns_file = FileDeployment(try_script, target='/home/ec2-user')
>>>ssh_client = SSHClient(dns_node[0].public_ip[0], username='ec2-user',  key=os.path.expanduser("~/.ssh/id_rsa"))
>>>dns_file.run(dns_node, ssh_client)

我已经验证了这些赋值的每个变量都显示了我所理解的适当类型。当我尝试这样做时，我得到了以下结果：

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Users/ec2-user/Envs/libcloud/lib/python2.7/site-packages/libcloud/compute/deployment.py", line 111, in run contents=content) File "/Users/ec2-user/Envs/libcloud/lib/python2.7/site-packages/libcloud/compute/ssh.py", line 174, in put sftp = self.client.open_sftp() File "/Users/ec2-user/Envs/libcloud/lib/python2.7/site-packages/paramiko/client.py", line 414, in open_sftp return self._transport.open_sftp_client() AttributeError: 'NoneType' object has no attribute 'open_sftp_client'

这是我为上面的对象准备的：

dns_node：

`[<Node: uuid=xxxxxxxxxxxxxxxxxxxxxxx, name=ec2_node1, state=0, public_ips=['xx.xxx.xxx.xx'], provider=Amazon EC2 ...>]`

dns_file：

<libcloud.compute.deployment.FileDeployment object at 0x10d58de50>

ssh_client：

`<libcloud.compute.ssh.ParamikoSSHClient object at 0x10d55e950>`

ssh_client.connect：

<bound method ParamikoSSHClient.connect of <libcloud.compute.ssh.ParamikoSSHClient object at 0x10d55e950>>

我遗漏了什么？

Answer 1

转到paramiko级别，发现我引用的私钥文件是加密的，这在正在建立的ssh连接中没有处理。因此，即使有一个SSHCLient对象，它也无法连接。

pkey = paramiko.RSAKey.from_private_key_file(os.path.expanduser('~/.ssh/id_rsa'))回溯(最近一次调用)：文件""，第1行，文件"/Users/ec2-user/Envs/libcloud/lib/python2.7/site-packages/paramiko/pkey.py"，第198行，from_private_key_file密钥= cls(filename=filename，password=password)文件pkey51行，在init self._from_private_key_file(文件名，密码)文件数据行163，在_from_private_key_file data = self._read_private_key_file('RSA'，文件名，密码)文件"/Users/ec2-user/Envs/libcloud/lib/python2.7/site-packages/paramiko/pkey.py"，行280，在"/Users/ec2-user/Envs/libcloud/lib/python2.7/site-packages/paramiko/pkey.py"，data =self._read_private_key( _read_private_key_file，f，password)文件第323行中，在_read_private_key提升PasswordRequiredException(‘私钥文件已加密’)中，paramiko.PasswordRequiredException:私钥文件已加密

我指定了一个无密码的密钥，连接就通过了。