ansible - python lxml issue with maven_artifact module

Question

I have ansible (v2.0.0.2) and python (v2.7.6) and i'm running the 'maven_artifact' module.

As a direct ansible command, it works fine

ansible localhost -m maven_artifact -a "group_id=commons-collections artifact_id=commons-collections dest=/tmp/commons-collections-latest.jar" -vvvv

but when i do the same via a playbook

- name: download via maven maven_artifact: group_id=junit artifact_id=junit dest=/tmp/junit-latest.jar

it fails with this error

fatal: [test01vm1]: FAILED! => {"changed": false, "failed": true, "invocation": {"module_name": "maven_artifact"}, "module_stderr": "", "module_stdout": "\r\nTraceback (most recent call last):\r\n File \"/home/admin123/.ansible/tmp/ansible-tmp-1454675562.75-201853614879442/maven_artifact\", line 25, in <module>\r\n from lxml import etree\r\nImportError: No module named lxml\r\n", "msg": "MODULE FAILURE", "parsed": false}

I believe might be related to the python lxml module, and i found these existing tickets

http://stackoverflow.com/questions/13355984/get-errors-when-import-lxml-etree-to-python http://stackoverflow.com/questions/4598229/installing-lxml-module-in-python

I'm wondering might someone have a workaround for this?

EDIT - Add python path details

I ran this command to see what path's are on the python home

14:55:11@pcZBook-15:/usr/local/etc$ python -c 'import sys; print(":".join(sys.path))'

The list of folders is

:/opt/stack/keystone :/opt/stack/glance :/opt/stack/cinder :/opt/stack/nova :/opt/stack/horizon :/usr/lib/python2.7 :/usr/lib/python2.7/plat-x86_64-linux-gnu :/usr/lib/python2.7/lib-tk :/usr/lib/python2.7/lib-old :/usr/lib/python2.7/lib-dynload :/usr/local/lib/python2.7/dist-packages :/usr/lib/python2.7/dist-packages :/usr/lib/python2.7/dist-packages/PILcompat :/usr/lib/python2.7/dist-packages/gtk-2.0 :/usr/lib/pymodules/python2.7 :/usr/lib/python2.7/dist-packages/ubuntu-sso-client :/usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode

khelwood · Accepted Answer · 2017-12-28 12:40:19Z

6

What I usually do is to call:

- name: Install PIP apt: name=python-pip state=present - name: Install lxml pip: name=lxml

edited Dec 28, 2017 at 12:40

khelwood

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answered Nov 15, 2016 at 17:25

Mariusz Lotko

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Comments

emeraldjava · Accepted Answer · 2016-02-15 16:09:06Z

It seems that ansible was trying to execute the 'maven_artifact' command on the remote target host, which didn't have the required python libraries.

In my case I only wanted to run the command on the local 'ansible_host' so I just added the 'local_action' prefix and the command runs.

- name: download via maven local_action: maven_artifact group_id=junit artifact_id=junit dest=/tmp/junit-latest.jar

Djiby Thiaw · Accepted Answer · 2017-04-20 09:40:30Z

1

Just do

sudo apt-get install python-lxml

answered Apr 20, 2017 at 9:40

Djiby Thiaw

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lcompare · Accepted Answer · 2022-01-05 10:56:02Z

0

You need to install lxml in [test01vm1].

pip install lxml

answered Jan 5, 2022 at 10:56

lcompare

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Comments

Antonio Maria Sanchez Berrocal · Accepted Answer · 2022-03-01 13:27:18Z

Verify that target machine has python lxml module, and ansible selects the python interpreter where you have installed the lxml module.

[ec2-user@i-05f345345aas6b bin]$ pip list | grep xml lxml 3.2.1

And then double check that ansible picks that python version by adding:

ansible_python_interpreter=/usr/bin/python2

See https://docs.ansible.com/ansible/latest/reference_appendices/interpreter_discovery.html

I have observed that ansible 2.12 ansible picks python3 interpreter by default, if no python interpreter is defined in target machine. So double check with

pip3 list | grep lxml

that lxml module is also available for python3

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