Accessing the UUID of a config item in templates

[ndejong]

I started a discussion in the forum with the same subject but I think I need to move this one here to discuss the code in more detail.

My goal is to implement a template helper function called getUUIDs() to facilitate being able to write the following template style:-

{% for tunnel_uuid in helpers.getUUIDs('VerbNetworks.autossh.tunnels.tunnel') %}
{% set tunnel = helpers.getUUID(tunnel_uuid) %}
Host {{ tunnel_uuid }}
  User {{ tunnel.user }}
  HostName {{ tunnel.host }}
{% endfor %}

Following the code, I observe that the special __uuid_tags__ attribute that is populated via this code

self.__uuid_tags[item.attrib['uuid']] = item.tag

... and this code provides data in the helper that looks like this

  "__uuid_tags__": {
    "8a777695-656c-497e-ba31-3e9301edb15f": "alert",
    "4a0bab44-cd2d-485a-8d07-75967c8e521f": "key",
    "c467f1c4-375b-4be1-987a-e52a07dd6de1": "tunnel",
...

The "thing" about this is that the tag-name value (ie, "alert", "key", "tunnel") only provide the last part of the item tag-path which means it is impossible to select all UUIDs that belong to a given full-tag without the risk of collecting tags from different plugins that happen to have the same name.

Is there actually any straight-forward way to resolve this? I imagine that the flow on effects of expanding the tag value to include the full tag-path would create a whole set of new issues elsewhere.

  "__uuid_tags__": {
    "8a777695-656c-497e-ba31-3e9301edb15f": "OPNsense.monit.general.alert",
    "4a0bab44-cd2d-485a-8d07-75967c8e521f": "VerbNetworks.autossh.keys.key",
    "c467f1c4-375b-4be1-987a-e52a07dd6de1": "VerbNetworks.autossh.tunnels.tunnel",
...

@AdSchellevis - I'm figuring this question is for you.

[AdSchellevis]

@ndejong I think we should just add the attributes to the items, so you could point to something like {{tunnel.__uuid__}} I'll take a look at this when I can.

[AdSchellevis]

for reference, same content as in the pull request :

this 3add6c7 should do the trick.

To use a uuid, just use something similar to:

  {{item['@uuid']}}

[ndejong]

Thanks @AdSchellevis