def hosts():
current_role = _current_role()
hostsfile = util.files('farmboy/hosts')
hosts = []
hosts.append('127.0.0.1 localhost farmboy-%s' % current_role)
# TODO(termie): does this break if we use callable roledefs?
for role, role_hosts in env.roledefs.iteritems():
if len(role_hosts) == 1:
if role == current_role:
continue
hosts.append('%s farmboy-%s' % (util.host(role_hosts[0]), role))
continue
for i, role_host in enumerate(role_hosts):
hosts.append('%s farmboy-%s-%s' % (util.host(role_host), role, i))
hosts_str = '\n'.join(hosts)
fabtools.require.files.template_file(
template_source = hostsfile,
context = {'hosts': hosts_str},
path = '/etc/hosts',
owner = 'root',
group = 'root',
mode = '644',
use_sudo = True)
def demo():
"""Example deployment of an haproxy+nginx+gunicorn+django."""
if env.roledefs['apt']:
execute(aptcacher.deploy)
execute(aptcacher.set_proxy)
execute(core.install_user)
execute(dns.hosts)
execute(haproxy.deploy)
execute(nginx.deploy)
execute(gunicorn.deploy)
execute(django.deploy, path=env.farmboy_django_app)
print ('Alright! Check out your site at: http://%%s'
%% util.host(env.roledefs['proxy'][0]))
env.key_filename = %(keyfile)s
# Define which servers go with which roles.
# POWER TIP: These can defined as callables as well if you want to load
# the servers in some more dynamic way.
# POWER TIP: You might also want to separate these out into a yaml file
# and do `env.roledefs = yaml.load(open('farmboy.yaml'))`
# or use the helper `env.roledefs = util.load_roledefs()`
env.roledefs.update(%(roledefs)s)
# Since we're be using apt caching, point out where that proxy will live.
# POWER TIP: If you're already using such a proxy, you can just point this
# at that server and skip the `execute(aptcacher.deploy)` step.
if env.roledefs['apt']:
apt = env.roledefs['apt'][0]
env.farmboy_apt_proxy = 'http://%%s:3142' %% util.host(apt)
# Where our django app lives (this directory will be pushed to web servers).
# This is expected to be the directory that contains the manage.py file for
# a default django setup.
# POWER TIP: We expect this to be in the current directory by default
# but a full path works here, too.
# POWER TIP: You can set the path directly as we do below in the execute
# call, but if none is set it will default to using the this
# env variable.
env.farmboy_django_app = 'demo'
# Where to find the template files to use when configuring services.
# POWER TIP: We'll fall back to the defaults shipped with farmboy for
# any files not found in this location.
# POWER TIP: TODO(termie) Use `farmboy files $some_module` to get the