Ansible - Python LXML 与maven_artifact模块的问题

Question

我有 ansible （v2.0.0.2） 和 python （v2.7.6），我正在运行“maven_artifact”模块。

作为一个直接的命令，它工作正常

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

但是当我通过剧本做同样的事情时

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

它失败，出现此错误

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}

我相信可能与python-lxml模块有关，我发现了这些现有的票证

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

我想知道有人可以解决这个问题吗？

编辑-添加python路径详细信息

我运行此命令以查看python主页上的路径

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

文件夹列表为

:/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

Answer 1

做就是了

sudo apt-get安装python-lxml

Answer 2

我通常会打电话给：

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

- name: Install lxml
  pip: name=lxml

Answer 3

ansible似乎试图在没有所需python库的远程目标主机上执行“maven_artifact”命令。

在我的例子中，我只想在本地“ansible_host”上运行命令，所以我只添加了“local_action”前缀，命令就运行了。

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