On Tuesday, July 22, 2014 10:20:29 AM UTC-5, Matthew Burgess wrote:
>
> Hi,
>
> It's probably best for you to not ask why we're doing the following,
>
Cause if you told us, you'd have to kill us?
> but here's what we're trying to achieve:
>
> We'd like to programmatically edit our Hiera data, and we're using the
> YAML backend. I can successfully load the correct YAML file and make
> the changes we require. However, we've hit upon a bit of a stumbling
> block if the YAML file contains an interpolation token, if gets
> 'corrupted' by the default Ruby YAML emitter like so:
>
> ipaddress: "%{::ipaddress_eth0}"
>
> becomes
>
> ipaddress: ! '%{::ipaddress_eth0}'
>
> When I inspect the data following the load of the YAML file, I can see
> it's been loaded correctly, so it seems to be when I call YAML.dump()
> that it gets 'corrupted'.
>
The '!' is the (correct) "non-specific tag" for the value, chosen by
default when the YAML parser loads the untagged data. I am uncertain why
the emitter is outputting it, but I don't think it changes the meaning.
Can you successfully load the output back into Ruby? If so, then would it
be acceptable to just accept the current result?
John
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