[ansible-project] Re: Extracting a substring with regex_replace fails
You made it, bravo!
However, this solution is not better than the regex search, because the
whole point of using the xml module was to make it resilient to change. As
soon as the URI {http://docs.oasis-open.org/ns/xri/xrd-1.0
}
changes, the call to access both variables will fail.
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Re: [ansible-project] Re: Extracting a substring with regex_replace fails
Hi,
> I have no XML skills. I nevertheless took a look at the ansible xml
> module, and it's obscure to me.
> I think you're right though: it'd be better to read XML appropriately
> with that module rather than use some regex filter which can be
> easily defeated if the input changes in the future.
> So I tried something, but of course it does not work
> (api_root_filename is the file containing the xml multi-line string):
>
> - name: Reading RESTconf release
> xml:
> attribute: rel
> content: attribute
> path: "{{ api_root_filename }}"
> xpath: /XRD/Link
> register: return_restconf_release
>
> - name: Showing attribute value
> debug:
> var: return_restconf_release.matches[0].Link.rel
The problem here is that your XML uses a namespace. I'm not very
familiar with xpaths either, but after a little googling I came up with
this:
- name: Reading RESTconf release
xml:
attribute: rel
content: attribute
path: "{{ api_root_filename }}"
xpath: "/*[name()='XRD']/*[name()='Link']"
register: return_restconf_release
- name: Showing attribute value
debug:
var:
return_restconf_release.matches[0]['{http://docs.oasis-open.org/ns/xri/xrd-1.0}Link']
This gives for me:
ok: [localhost] => {
"failed": false,
"return_restconf_release.matches[0]['{http://docs.oasis-open.org/ns/xri/xrd-1.0}Link']":
{
"href": "/restconf",
"rel": "restconf"
}
}
Cheers,
Felix
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[ansible-project] Re: Extracting a substring with regex_replace fails
@Kai Stian Olstad
Thanks for your answer: yes, it works.
@Felix Fontain
I have no XML skills. I nevertheless took a look at the ansible xml module,
and it's obscure to me.
I think you're right though: it'd be better to read XML appropriately with
that module rather than use some regex filter which can be easily defeated
if the input changes in the future.
So I tried something, but of course it does not work (api_root_filename is
the file containing the xml multi-line string):
- name: Reading RESTconf release
xml:
attribute: rel
content: attribute
path: "{{ api_root_filename }}"
xpath: /XRD/Link
register: return_restconf_release
- name: Showing attribute value
debug:
var: return_restconf_release.matches[0].Link.rel
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[ansible-project] Re: Extracting a substring with regex_replace fails
> > > I have the same difficulty with: ansible 2.4.3.0 (detached HEAD 8a7f9beab7) last updated 2018/02/14 16:11:16 (GMT +200) -- You received this message because you are subscribed to the Google Groups "Ansible Project" group. To unsubscribe from this group and stop receiving emails from it, send an email to ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/fb5f8d45-ea18-42ab-bd6e-ddc19fbec3b3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
