ideas for dfd

gistfile1.py

from fab_deploy import define_host, has_apps
from fab_deploy.db import Mysql
from fab_deploy.webservers import Nginx, Apache
from fab_deploy.vcs import Git

@has_apps(
    nginx = Nginx(),
    apache = Apache(),
    db = Mysql()
)
@define_host('[email protected]')
def my_host():
    return {
       'foo': '123'
    }


# =======================================================

my_host2 = define_host('[email protected]',
    conf = dict(
        apps = dict(
            nginx = Nginx(),
            nginx2 = Nginx(config='nginx2.conf')
            apache = Apache(),
        ),
        db = Mysql(db_user='vasia'),
        vcs = Git(), 
    ),
)

# $ fab my_host2.apps.nginx.restart
# $ fab my_host2.db.create_user:'foo'


# ==============================================

from fab_deploy import apps

apps.define(
    nginx = Nginx(),
    nginx_foo = Nginx(config='nginx_foo.conf'),
    apache = Apache(),
    apache_foo = Apache(wsgi='foo.wsgi'),
)

@define_host('[email protected]', apps=['nginx_foo', 'apache_foo'])
def my_foo_host():
    return {
       'foo': '123'
    }

# fabfile.my_bar_host.py
from fab_deploy import apps, define_host

apps.define(
    bar_backend = Apache(config='apache_bar.conf', threads=15, processes=5)
)

@define_host('[email protected]', apps=['nginx', 'bar_backend'])
def bar():
    return {
       'bar': '123'
    }

# $ fab my_foo_host nginx_foo.install

# =============================================

apps_foo = task_package(
    nginx = Nginx(config='nginx_foo.conf'),
    apache = Apache()
)

apps_bar = task_package(
    nginx = Nginx(config='nginx_bar.conf'),
    apache = Apache()    
)

# ???
@define_host('[email protected]', host_tasks=apps_foo)
def my_foo_host():
    return {
       'foo': '123'
    }