Paramiko连接在Lambda内失败

Question

我有一个Lambda函数，在S3对象放置后调用。它连接到另一个EC2实例并运行bash脚本。我已经确认了bash脚本，并且lambda函数之外的Python代码可以正常工作。然而，包装它会产生我无法弄清楚的相同错误。附加到lambda的角色似乎附加了所有必需的EC2和S3所需的策略。没有VPC附加到lambda函数。

码：

import boto3
import botocore
import paramiko

def lambda_handler(event, context):
    s3_client = boto3.client('s3')
    s3_client.download_file('mycluster', 'keys/ec2box.pem', 
    '/tmp/ec2box.pem')

    k = paramiko.RSAKey.from_private_key_file('/tmp/ec2box.pem')
    c = paramiko.SSHClient()
    c.set_missing_host_key_policy(paramiko.AutoAddPolicy())

    c.connect(hostname='99.99.9999', username='centos', pkey=k)

    commands = [
        "cd /home/dir1/;chmod +x file.sh;nohup ./file.sh > logs/program"
    ]
    for command in commands:
        print
        "Executing {}".format(command)
        stdin, stdout, stderr = c.exec_command(command)
        print
        stdout.read()
        print
        stderr.read()

    return
    {
        'message': "Script execution completed. See Cloudwatch logs for complete output"
    }

我的错误

[Errno 110] Connection timed out: error
Traceback (most recent call last):
File "/var/task/pythonprogram.py", line 17, in lambda_handler
c.connect(hostname='99.99.9999', username='centos', pkey=k)
File "/var/task/paramiko/client.py", line 338, in connect
retry_on_signal(lambda: sock.connect(addr))
File "/var/task/paramiko/util.py", line 279, in retry_on_signal
return function()
File "/var/task/paramiko/client.py", line 338, in <lambda>
retry_on_signal(lambda: sock.connect(addr))
File "/usr/lib64/python2.7/socket.py", line 228, in meth
return getattr(self._sock,name)(*args)
error: [Errno 110] Connection timed out

有任何想法吗？

Answer 1

另一答案