Run tasks on multiple hosts about awsfabrictasks HOT 4 CLOSED

from awsfabrictasks.ec2.api import Ec2InstanceWrapper, print_ec2_instance
from fabric.api import task, run, settings

@task
def print_uname():
    run("uname -a")

@task
def list_magento_instances():
    for instancewrapper in Ec2InstanceWrapper.get_by_tagvalue(tags={"role": "Magento"}): # in DEFAULT_REGION
        # Some debugging print
        print
        print instancewrapper
        print_ec2_instance(instancewrapper.instance)

        # A more realistic usage example
        ssh_uri = instancewrapper.get_ssh_uri()
        key_filename = instancewrapper.get_ssh_key_filename()
        with settings(key_filename=key_filename, host_string=ssh_uri):
            # Run tasks here just as if you invoked ``awsfab -E myname <task>``
            print_uname()

with instancewrapper.instance_settings(): # Supports any fabric.api.settings arguments, but key_filename and host_string is ignored/overridden
    print_uname()

ssh_uri = instancewrapper.get_ssh_uri()
key_filename = instancewrapper.get_ssh_key_filename()
with settings(key_filename=key_filename, host_string=ssh_uri):
    # Run tasks here just as if you invoked ``awsfab -E myname <task>``
    print_uname()