def start_connection(play_context, variables, task_uuid):
'''
Starts the persistent connection
'''
candidate_paths = [C.ANSIBLE_CONNECTION_PATH or os.path.dirname(sys.argv[0])]
candidate_paths.extend(os.environ['PATH'].split(os.pathsep))
for dirname in candidate_paths:
ansible_connection = os.path.join(dirname, 'ansible-connection')
if os.path.isfile(ansible_connection):
display.vvvv("Found ansible-connection at path {0}".format(ansible_connection))
break
else:
raise AnsibleError("Unable to find location of 'ansible-connection'. "
"Please set or check the value of ANSIBLE_CONNECTION_PATH")
env = os.environ.copy()
env.update({
# HACK; most of these paths may change during the controller's lifetime
# (eg, due to late dynamic role includes, multi-playbook execution), without a way
# to invalidate/update, ansible-connection won't always see the same plugins the controller
# can.
'ANSIBLE_BECOME_PLUGINS': become_loader.print_paths(),
'ANSIBLE_CLICONF_PLUGINS': cliconf_loader.print_paths(),
'ANSIBLE_COLLECTIONS_PATH': to_native(os.pathsep.join(AnsibleCollectionConfig.collection_paths)),
'ANSIBLE_CONNECTION_PLUGINS': connection_loader.print_paths(),
'ANSIBLE_HTTPAPI_PLUGINS': httpapi_loader.print_paths(),
'ANSIBLE_NETCONF_PLUGINS': netconf_loader.print_paths(),
'ANSIBLE_TERMINAL_PLUGINS': terminal_loader.print_paths(),
})
python = sys.executable
master, slave = pty.openpty()
p = subprocess.Popen(
[python, ansible_connection, to_text(os.getppid()), to_text(task_uuid)],
stdin=slave, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env
)
os.close(slave)
# We need to set the pty into noncanonical mode. This ensures that we
# can receive lines longer than 4095 characters (plus newline) without
# truncating.
old = termios.tcgetattr(master)
new = termios.tcgetattr(master)
new[3] = new[3] & ~termios.ICANON
try:
termios.tcsetattr(master, termios.TCSANOW, new)
write_to_file_descriptor(master, variables)
write_to_file_descriptor(master, play_context.serialize())
(stdout, stderr) = p.communicate()
finally:
termios.tcsetattr(master, termios.TCSANOW, old)
os.close(master)
if p.returncode == 0:
result = json.loads(to_text(stdout, errors='surrogate_then_replace'))
else:
try:
result = json.loads(to_text(stderr, errors='surrogate_then_replace'))
except getattr(json.decoder, 'JSONDecodeError', ValueError):
# JSONDecodeError only available on Python 3.5+
result = {'error': to_text(stderr, errors='surrogate_then_replace')}
if 'messages' in result:
for level, message in result['messages']:
if level == 'log':
display.display(message, log_only=True)
elif level in ('debug', 'v', 'vv', 'vvv', 'vvvv', 'vvvvv', 'vvvvvv'):
getattr(display, level)(message, host=play_context.remote_addr)
else:
if hasattr(display, level):
getattr(display, level)(message)
else:
display.vvvv(message, host=play_context.remote_addr)
if 'error' in result:
if play_context.verbosity > 2:
if result.get('exception'):
msg = "The full traceback is:\n" + result['exception']
display.display(msg, color=C.COLOR_ERROR)
raise AnsibleError(result['error'])
return result['socket_path']
def _start_connection(self):
'''
Starts the persistent connection
'''
master, slave = pty.openpty()
env = os.environ.copy()
env.update({
'ANSIBLE_CLICONF_PLUGINS': cliconf_loader.print_paths(),
'ANSIBLE_CONNECTION_PLUGINS': connection_loader.print_paths(),
'ANSIBLE_HTTPAPI_PLUGINS': httpapi_loader.print_paths(),
'ANSIBLE_NETCONF_PLUGINS': netconf_loader.print_paths(),
'ANSIBLE_TERMINAL_PLUGINS': terminal_loader.print_paths(),
})
python = sys.executable
def find_file_in_path(filename):
# Check $PATH first, followed by same directory as sys.argv[0]
paths = os.environ['PATH'].split(os.pathsep) + [os.path.dirname(sys.argv[0])]
for dirname in paths:
fullpath = os.path.join(dirname, filename)
if os.path.isfile(fullpath):
return fullpath
raise AnsibleError("Unable to find location of '%s'" % filename)
p = subprocess.Popen(
[python, find_file_in_path('ansible-connection'), to_text(os.getppid())],
stdin=slave, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env
)
os.close(slave)
# We need to set the pty into noncanonical mode. This ensures that we
# can receive lines longer than 4095 characters (plus newline) without
# truncating.
old = termios.tcgetattr(master)
new = termios.tcgetattr(master)
new[3] = new[3] & ~termios.ICANON
try:
termios.tcsetattr(master, termios.TCSANOW, new)
write_to_file_descriptor(master, {'ansible_command_timeout': self.get_option('persistent_command_timeout')})
write_to_file_descriptor(master, self._play_context.serialize())
(stdout, stderr) = p.communicate()
finally:
termios.tcsetattr(master, termios.TCSANOW, old)
os.close(master)
if p.returncode == 0:
result = json.loads(to_text(stdout, errors='surrogate_then_replace'))
else:
try:
result = json.loads(to_text(stderr, errors='surrogate_then_replace'))
except getattr(json.decoder, 'JSONDecodeError', ValueError):
# JSONDecodeError only available on Python 3.5+
result = {'error': to_text(stderr, errors='surrogate_then_replace')}
if 'messages' in result:
for msg in result.get('messages'):
display.vvvv('%s' % msg, host=self._play_context.remote_addr)
if 'error' in result:
if self._play_context.verbosity > 2:
if result.get('exception'):
msg = "The full traceback is:\n" + result['exception']
display.display(msg, color=C.COLOR_ERROR)
raise AnsibleError(result['error'])
return result['socket_path']