Openwisp2 Error while deploying

[Itay Sena]

Hello guys, all good?

I'm trying to install it and I have a problem that, the Play recap shows me 71 ok, 48 skipped and 1 failed.

The failed one is the geocoding check, if I add on my yaml to ignore it, it stops on the next task, that is migrating.

here's is the erro message.

i'm following the steps on https://github.com/openwisp/ansible-openwisp2#install-openwisp2-for-testing-in-a-virtualbox-vm

fatal: [openwisp2.myworld]: FAILED! => {"changed": false, "cmd": ["./manage.py", "check", "--deploy", "--tag", "geocoding"], "msg": "\n:stderr: Traceback (most recent call last):\n  File \"/opt/openwisp2/./manage.py\", line 10, in <module>\n    execute_from_command_line(sys.argv)\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/django/core/management/__init__.py\", line 446, in execute_from_command_line\n    utility.execute()\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/django/core/management/__init__.py\", line 420, in execute\n    django.setup()\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/django/__init__.py\", line 24, in setup\n    apps.populate(settings.INSTALLED_APPS)\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/django/apps/registry.py\", line 116, in populate\n    app_config.import_models()\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/django/apps/config.py\", line 304, in import_models\n    self.models_module = import_module(models_module_name)\n  File \"/usr/lib/python3.9/importlib/__init__.py\", line 127, in import_module\n    return _bootstrap._gcd_import(name[level:], package, level)\n  File \"<frozen importlib._bootstrap>\", line 1030, in _gcd_import\n  File \"<frozen importlib._bootstrap>\", line 1007, in _find_and_load\n  File \"<frozen importlib._bootstrap>\", line 986, in _find_and_load_unlocked\n  File \"<frozen importlib._bootstrap>\", line 680, in _load_unlocked\n  File \"<frozen importlib._bootstrap_external>\", line 790, in exec_module\n  File \"<frozen importlib._bootstrap>\", line 228, in _call_with_frames_removed\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/openwisp_controller/pki/models.py\", line 3, in <module>\n    from .base.models import AbstractCa, AbstractCert\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/openwisp_controller/pki/base/models.py\", line 3, in <module>\n    from django_x509.base.models import AbstractCa as BaseCa\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/django_x509/base/models.py\", line 5, in <module>\n    import OpenSSL\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/OpenSSL/__init__.py\", line 8, in <module>\n    from OpenSSL import crypto, SSL\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/OpenSSL/crypto.py\", line 17, in <module>\n    from OpenSSL._util import (\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/OpenSSL/_util.py\", line 6, in <module>\n    from cryptography.hazmat.bindings.openssl.binding import Binding\n  File \"/opt/openwisp2/env/lib/python3.9/site-packages/cryptography/hazmat/bindings/openssl/binding.py\", line 14, in <module>\n    from cryptography.hazmat.bindings._openssl import ffi, lib\nModuleNotFoundError: No module named '_cffi_backend'\n", "path": "/opt/openwisp2/env/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "syspath": ["/tmp/ansible_django_manage_payload_vm2z0xd5/ansible_django_manage_payload.zip", "/usr/lib/python39.zip", "/usr/lib/python3.9", "/usr/lib/python3.9/lib-dynload", "/usr/local/lib/python3.9/dist-packages", "/usr/lib/python3/dist-packages"]}

[Federico Capoano]

Hi, 

this is the error that seems to be holding you down:

ModuleNotFoundError: No module named _cffi_backend

I have seen this in the past, are you using Ubuntu 20.04 (the Ubuntu release from 2020)? I recommend lo look for this error on google and try the solutions found there, one should work.

I hope this helps.

Federico

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[Itay Sena]

Hi again

root@openwisp2:~/openwisp2-ansible-playbook# python3 -m pip install cffi
Requirement already satisfied: cffi in /root/.local/lib/python3.9/site-packages (1.15.1)
Requirement already satisfied: pycparser in /root/.local/lib/python3.9/site-packages (from cffi) (2.21

I have them =\