On 2015-25-02 15:42, Fran Rodríguez wrote:
Hi there,
Some information is missing, sorry for that, this is the correct yaml:
|
nodes:
host1:
ip:xxx.xxx.xxx
cdir:bbb.bbb.bbb
interface:aaa
host2:
ip:yyy.yyy.yyy
cdir:bbb.bbb.bbb
interface:aaa
|
This yaml is declarated on a Foreman, we use Foreman like Hiera, and it
uses for a template:
|
<%=@nodes[0][name]%>
IPaddr2::<%=@nodes[0]['ip']%>/<%=@nodes[0]['cidr']%>/<%=@nodes[0]['interface']-%>
|
I assume that is not working. The yaml you outline means nodes is a
hash, it has the keys 'host1', and 'host2'. so...
@nodes['host1']['ip']
But, I guess that you do not know the name of the host and want to pick
the "first". The order in a hash is undefined, so you will be picking a
random entry - it may not be the first entry you see in the yaml because
it may change as it is read into memory. (This depends on which version
of ruby you are using, and what kind of processing that has been made
internally on the particular hash).
If you want to get the "first key", you could do this:
key = @nodes.keys[0]
and then
@nodes[key]['ip']
- henrik
And its defined on a manifest:
|
classheartbeat {
template_resources =>'site/heartbeat/resources.erb'
}
|
I only need the first element to apply, in this case. Thanks for the
fast answer.
Cheers
On Wednesday, 25 February 2015 15:15:50 UTC+1, LinuxDan wrote:
More detail is needed to answer the question.
Here are (I hope) some helpful suggestions:
The data you list is a hash.
How does one get the first "element" from a hash ?
In what context are you trying to access the information ? Manifest
? Template ? No in Puppet at all ?
One thing that caught my eye: The top-mose key of the hash is "node"
while the template code says "nodes". That could be the problem.
“Sometimes I think the surest sign that intelligent life exists elsewhere in
the universe is that none of it has tried to contact us.” (Bill Waterson: Calvin
& Hobbes)
On Feb 25, 2015, at 08:52 AM, Fran Rodríguez <fran.c....@gmail.com
<javascript:>> wrote:
Hi group,
Im trying to get one element from a yaml structure which come from
Foreman, the yaml is like this:
node :
host1 :
ip : xxx . xxx . xxx
host2 :
ip : xxx . xxx . xxx
Those parameter are used to in a template:
<%= @nodes [ 0 ][ name ] %> IPaddr2:: <%= @nodes [ 0 ][ 'ip' ] %>/
<%= @nodes [ 0 ][ 'cidr' ] %>/ <%= @nodes [ 0 ][ 'interface' ] - %>
The question is that i only need the first parameter, i tried some
ways to do it but without any luck, so if someone could put me on
the correct way or tell me what i would have to do.....
Thanks.
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