The module ndmtk was not found in configured module paths

[MohanrajBabu]

Hello,

Followed below steps in installing ndmtk.

[root@localhost collect_data]# pip install ndmtk
Collecting ndmtk
  Using cached https://files.pythonhosted.org/packages/5d/12/649225c25b943b495e4b4c890542699fd68cbdc678ae5abbc1d4d883e35f/ndmtk-0.2.0.tar.gz
Requirement already satisfied (use --upgrade to upgrade): ansible>=2.0 in /usr/lib/python2.7/site-packages (from ndmtk)
Requirement already satisfied (use --upgrade to upgrade): jinja2 in /usr/lib/python2.7/site-packages (from ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): PyYAML in /usr/lib64/python2.7/site-packages (from ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): cryptography in /usr/lib64/python2.7/site-packages (from ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): markupsafe in /usr/lib64/python2.7/site-packages (from jinja2->ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): idna>=2.0 in /usr/lib/python2.7/site-packages (from cryptography->ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): pyasn1>=0.1.8 in /usr/lib/python2.7/site-packages (from cryptography->ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): six>=1.4.1 in /usr/lib/python2.7/site-packages (from cryptography->ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): setuptools in /usr/lib/python2.7/site-packages (from cryptography->ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): enum34 in /usr/lib/python2.7/site-packages (from cryptography->ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): ipaddress in /usr/lib/python2.7/site-packages (from cryptography->ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): cffi>=1.4.1 in /usr/lib64/python2.7/site-packages (from cryptography->ansible>=2.0->ndmtk)
Requirement already satisfied (use --upgrade to upgrade): pycparser in /usr/lib/python2.7/site-packages (from cffi>=1.4.1->cryptography->ansible>=2.0->ndmtk)
Installing collected packages: ndmtk
  Running setup.py install for ndmtk ... done
Successfully installed ndmtk

When tried to run a sample playbook, getting below error.

[root@localhost collect_data]# ansible-playbook -i hosts site.yml

PLAY [Collect Common data] ***********************************************************************************************************************************************

TASK [collect_common : data collection from three network devices] *******************************************************************************************************
fatal: [192.168.43.89]: FAILED! => {"msg": "The module ndmtk was not found in configured module paths"}
fatal: [192.168.43.87]: FAILED! => {"msg": "The module ndmtk was not found in configured module paths"}

PLAY RECAP ***************************************************************************************************************************************************************
192.168.43.89              : ok=0    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0   
192.168.43.87              : ok=0    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0   

How to fix this issue?

Thanks,
Mohan

[greenpau]

How to fix this issue?

@MohanrajBabu , the reason for this is ndmtk gets injected into ansible's module path via a symlink at the installation time.

ndmtk/setup.py

Lines 117 to 135 in d4c9927

	'''
	Create a symlink, i.e. `ln -s TARGET LINK_NAME`
	'''
	_egg_files = [];
	for ansible_dir in ansible_dirs:
	for i in ['action', 'callback']:
	symlink_target = os.path.join(plugin_dir, 'plugins/' + i + '/ndmtk.py');
	symlink_name = os.path.join(ansible_dir, 'plugins/' + i + '/ndmtk.py');
	try:
	os.symlink(symlink_target, symlink_name);
	os.chmod(symlink_name, stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IROTH);
	_egg_files.append(symlink_name);
	_egg_files.append(symlink_name + 'c');
	print("[INFO] created symlink '" + symlink_name + "' to plugin '" + symlink_target + "'");
	except:
	exc_type, exc_value, exc_traceback = sys.exc_info();
	print('[ERROR] an attempt to create a symlink ' + symlink_name + ' to plugin ' + symlink_target + ' failed, aborting!');
	print(traceback.format_exception(exc_type, exc_value, exc_traceback));
	return;

It looks like it did not happen here. Reasons:

1. something changed in ansible api
2. some variation in you system why

This function looks for ansible packages:

ndmtk/setup.py

Lines 69 to 75 in d4c9927

	ansible_dirs = _find_py_package('ansible');
	if len(ansible_dirs) == 0:
	print("[ERROR] 'ansible' python package was not found");
	return [];
	print("[INFO] the path to 'ansible' python package is: " + str(ansible_dirs));
	remove_ansible_files(ansible_dirs);
	return ansible_dirs;

It iterates over site-packages.

ndmtk/setup.py

Line 81 in d4c9927

def _find_py_package(name):

Do you have multiple ansible modules in your site-packages? If you have egg file, then ndmtk will not have a way to inject itself into ansible.