def create_host_task(key, host_config):
""" Generate host tasks dynamically from config """
# do validation *before* dynamic task function generation
# allowing for hostname to avoid a breaking change
if 'hostname' in host_config and 'hostnames' in host_config:
raise ValueError(red('cannot specify both \'hostname\' and \'hostnames\''))
if 'hostname' not in host_config and 'hostnames' not in host_config:
raise ValueError(red('must supply \'hostnames\' section'))
hosts_key = 'hostname' if 'hostname' in host_config else 'hostnames'
def f():
hosts = None
if 'hostname' in host_config:
warn('\'hostname\' is being deprecated in favor of \'hostnames\' so you can provide a csv-list\n')
hostname = host_config['hostname']
hosts = [hostname]
if 'hostnames' in host_config:
hosts = [h.strip() for h in host_config['hostnames'].split(',')]
env.hosts = hosts
env.port = host_config.get('port', 22)
# convenience for local deployment to Vagrantfile VM
if hosts[0] in {'localhost', '127.0.0.1'}:
hostname = '127.0.0.1' # sometimes fabric just fails with 'localhost'
env.user = 'vagrant'
env.password = 'vagrant'
env.port = host_config.get('port', 2222)
f.__name__ = key
f.__doc__ = "[hosts] \tsets deploy hosts to %s" % green(host_config[hosts_key])
return WrappedCallableTask(f)
评论列表
文章目录
