Question

我在Ansible 2.2.1.0版本中使用junos_config模块，简而言之，它采用纯文本配置文件并使用它来配置Juniper网络设备。它似乎在此过程中使用lxml。问题是，此纯文本文件包含非ASCII字符，Ansible失败并出现以下错误：

An exception occurred during task execution. To see the full traceback, use -vvv. The error was: ValueError: All strings must be XML compatible: Unicode or ASCII, no NULL bytes or control characters
fatal: [10.10.10.111]: FAILED! => {"changed": false, "failed": true, "module_stderr": "Traceback (most recent call last):\n  File \"/tmp/ansible_FZ42iu/ansible_module_junos_config.py\", line 344, in <module>\n    main()\n  File \"/tmp/ansible_FZ42iu/ansible_module_junos_config.py\", line 335, in main\n    run(module, result)\n  File \"/tmp/ansible_FZ42iu/ansible_module_junos_config.py\", line 293, in run\n    return load_config(module, result)\n  File \"/tmp/ansible_FZ42iu/ansible_module_junos_config.py\", line 258, in load_config\n    diff = module.config.load_config(candidate, **kwargs)\n  File \"/tmp/ansible_FZ42iu/ansible_modlib.zip/ansible/module_utils/netcfg.py\", line 58, in load_config\n  File \"/tmp/ansible_FZ42iu/ansible_modlib.zip/ansible/module_utils/junos.py\", line 201, in load_config\n  File \"/usr/local/lib/python2.7/dist-packages/jnpr/junos/utils/config.py\", line 388, in load\n    return try_load(rpc_contents, rpc_xattrs)\n  File \"/usr/local/lib/python2.7/dist-packages/jnpr/junos/utils/config.py\", line 350, in try_load\n    got = self.rpc.load_config(rpc_contents, **rpc_xattrs)\n  File \"/usr/local/lib/python2.7/dist-packages/jnpr/junos/rpcmeta.py\", line 79, in load_config\n    rpc.append(E('configuration-text', contents))\n  File \"/usr/local/lib/python2.7/dist-packages/lxml/builder.py\", line 236, in __call__\n    v = t(elem, item)\n  File \"/usr/local/lib/python2.7/dist-packages/lxml/builder.py\", line 185, in add_text\n    elem.text = (elem.text or \"\") + item\n  File \"src/lxml/lxml.etree.pyx\", line 1031, in lxml.etree._Element.text.__set__ (src/lxml/lxml.etree.c:53225)\n  File \"src/lxml/apihelpers.pxi\", line 715, in lxml.etree._setNodeText (src/lxml/lxml.etree.c:24420)\n  File \"src/lxml/apihelpers.pxi\", line 703, in lxml.etree._createTextNode (src/lxml/lxml.etree.c:24283)\n  File \"src/lxml/apihelpers.pxi\", line 1443, in lxml.etree._utf8 (src/lxml/lxml.etree.c:31502)\nValueError: All strings must be XML compatible: Unicode or ASCII, no NULL bytes or control characters\n", "module_stdout": "", "msg": "MODULE FAILURE"}

我尝试在junos_config模块中使用# -*- coding: utf-8 -*-，但这没有帮助。我还尝试将Python PYTHONIOENCODING设置为utf8。

junos_config模块的配置文件如下所示：

groups {
    replace: classes {
        /* Configured by Ansible £ */
        system {
            login {
                class test {
                    idle-timeout 1;
                    permissions network;
                    allow-commands "show route.*|quit|exit";
                    deny-commands .*;
                }
            }
        }
    }
}

当它包含£字符时，模块将失败并显示Unable to load config: All strings must be XML compatible: Unicode or ASCII, no NULL bytes or control characters错误消息。

如何让junos_config（或lxml）支持非ASCII字符？

Answer 1

如果不检查源代码而没有配置文件或有问题的字符串，我会说你的问题是非ASCII和非UTF-8字符。从错误消息：

ValueError：所有字符串必须兼容XML：Unicode或ASCII，无NULL字节或控制字符

我会说这是一个控制角色。

经过一番研究后，我发现了这个答案https://stackoverflow.com/a/28380315/3810217也许它有所帮助。使用hexdump filename，您可以检查空字节等等。

另一种解决方案是使用gedit重新创建/保存文件。在那里，您可以将希望的编码设置为utf-8（至少对于新文件）。

Answer 2

不幸的是，lxml在python2中仅限于ascii support，但它在python3中同时包含ascii和utf-8。幸运的是，Ansible-2.2包含python-3 support的技术预览，因此如果启用 python3 解释器，模块应该可以工作。

如何使junos_config Ansible模块支持非ASCII字符？

2 个答案: