[openstack-dev] [oslo] Common SSH
Doug Hellmann
doug.hellmann at dreamhost.com
Mon Jan 13 15:02:19 UTC 2014
On Mon, Jan 13, 2014 at 7:32 AM, Bhuvan Arumugam <bhuvan at apache.org> wrote:
> On Fri, Jan 10, 2014 at 11:24 PM, Sergey Skripnick <
> sskripnick at mirantis.com> wrote:
>
>>
>> I appreciate that we want to fix the ssh client. I'm not certain that
>>> writing our own is the best >answer.
>>>
>>
>> I was supposed to fix oslo.processutils.ssh with this class, but it may
>> be fixed without it, not big deal.
>>
>>
>>
>>
>>> In his comments on your pull request, the paramiko author recommended
>>> looking at Fabric. I know that >Fabric has a long history in production.
>>> Does it provide the required features?
>>>
>>>
>> Fabric is too much for just command execution on remote server. Spur
>> seems like
>> good choice for this.
>>
>
> I'd go with Fabric. It support several remote server operations, file
> upload/download among them. We could just import the methods we are
> interested. It in turn use paramiko supporting most of ssh client options.
> If we begin using fabric for file upload/download, it'll open door for more
> remote server operations. Bringing in fabric as part of oslo will be cool.
>
Where are we doing those sorts of operations?
Doug
>
> A quick demo script to upload/download files using fabric.
>
> from fabric.api import get, put, run, settings
>
>
>
> remote_host = 'localhost'
>
> with settings(host_string=remote_host):
>
> # what is the remote hostname?
>
> run('hostname -f')
>
> # download /etc/hosts file
>
> get('/etc/hosts')
>
> # upload /etc/bashrc to /tmp directory
>
> put('/etc/bashrc', '/tmp/bashrc')
>
> The output may look like:
>
> [localhost] run: hostname -f
> [localhost] out: rainbow.local
> [localhost] out:
>
> [localhost] download: /Users/bhuvan/localhost/hosts <- /etc/hosts
> [localhost] put: /etc/bashrc -> /tmp/bashrc
>
> --
> Regards,
> Bhuvan Arumugam
> www.livecipher.com
>
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>
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