On Thu, Jul 12, 2012 at 2:00 PM, Brown, Rodrick <
address@hidden> wrote:
> My response was to the OP was asking how to load a dynamic list of hosts
> into fabric.
>
> The no magic solution is to treat Fab scripts like Python scripts, env.hosts
> is just looking for a list so you can easily populate env.hosts with normal
> python code that reads data from a file and stores the result set in a list.
>
>
>
> From: Ryan Bales [mailto:
address@hidden]
> Sent: Thursday, July 12, 2012 4:37 PM
> To: Brown, Rodrick
> Cc: fab-user
> Subject: Re: [Fab-user] Dynamic hosts not supported by -H?
>
>
>
> Well there _is_ some magic to it, though, isn't there? Fabric handles
> execution as specified on the command-line, executing the right methods for
> the right hosts and such. That's why you call fab, and not python, right?
>
>
>
> ~R
>
>
>
> On Thu, Jul 12, 2012 at 3:15 PM, Brown, Rodrick <
address@hidden> wrote:
>
> Fabric is just python there is no magic to it.
>
>
>
> $ cat >fabfile1.py
>
> import fabric
>
> from fabric.api import run, env
>
> import os
>
>
>
> hostlist = '/tmp/hostlist'
>
> if (os.path.exists(hostlist)):
>
> env.hosts = list(file(hostlist).readlines())[:-1]
>
> print(env.hosts)
>
>
>
> def checkproc():
>
> run('/bin/ps -elf |grep java')
>
>
>
> $ fab checkproc -f fabfile1.py
>
>
>
> From: fab-user-bounces+rbrown=
address@hidden
> [mailto:
fab-user-bounces+rbrown=
address@hidden] On Behalf Of Ryan
> Bales
> Sent: Thursday, July 12, 2012 9:27 AM
> To: fab-user
> Subject: [Fab-user] Dynamic hosts not supported by -H?
>
>
>
> Hello all,
>
>
>
> I'm trying to build a web app around a few fabric scripts, and I need to
> supply a dynamic list of hosts to the scripts. I saw the -H switch, but it
> apparently only works when env.hosts is defined in the fabric script. I
> also looked at command-line kwargs for methods, but the methods won't even
> be executed without env.hosts being defined. Can someone point me in the
> right direction?
>
>
>
> Thanks,
> --
> Ryan Bales
>
http://thinkt4nk.com/
>
http://twitter.com/#!/thinkt4nk
>
https://github.com/thinkt4nk
>
>
>
>
>
> --
> Ryan Bales
>
http://thinkt4nk.com/
>
http://twitter.com/#!/thinkt4nk
>
https://github.com/thinkt4nk
>
>
> Please visit our website for important disclaimers/disclosures regarding
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>
>
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>
>
>
>
> --
> Ryan Bales
>
http://thinkt4nk.com/
>
http://twitter.com/#!/thinkt4nk
>
https://github.com/thinkt4nk
>
>
> Please visit our website for important disclaimers/disclosures regarding
> Knight’s products and services:
>
>
http://www.knight.com/KnightEmailDisclaimer.html
>
>