Re: [Fab-user] Parallel Tasks With Different Parameters

[Brandon Whaley]

That functionality is not built in to fabric.  Either have your task query for what param it should use based on the value of env.host_string or abuse host strings to pass the arguments like so:

@parallel

def task():

    #naturally requires that param not contain '_', use another non-valid host character if it needs to

    host_string, param = env.host_string.split('_')

    with settings(host_string=host_string):

        run("command with {}".format(param))

def launcher():

    execute(task, hosts=['192.168.1.100_param1', '192.168.1.200_param2'])

On Thu, Dec 8, 2016 at 6:05 PM Erikton Konomi <address@hidden> wrote:

Hello,

How would you go about running multiple tasks on multiple hosts but with different parameter for each host? For example a fabfile with:

@parallel

def task(param):

    run("some command that takes <param> as argument")

def launcher():

    execute(task, param_1, hosts=['192.168.1.100', '192.168.1.200'])

    # The above will run the task on 2 hosts but with the same value for <param>

    # I would like to run both hosts but specifying different value for <param> for each host, like:

    # execute(task, args=[param_1, param_2], hosts=['192.168.1.100', '192.168.1.200'])

Is this functionality there? I couldn't find something on the documents.

Thanks,

Erik

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